Carbon storage agriculture evaluation system and method for providing carbon storage agriculture evaluation information

Abstract

To provide a carbon storage agriculture evaluation system and a method of providing carbon storage agriculture evaluation information.SOLUTION: A carbon storage agriculture evaluation system according to the present invention has a data acquiring unit 116 for reading, from a storage, first data indicating characteristics of a soil improvement material including a biochar, second data including an application amount of a soil improvement material including biochar in an agricultural site, a kind and an area of the agricultural site, and a kind and an application amount of a fertilizer used there, and third data including a kind and a yield of an agricultural crop cultivated in the agricultural site, and a data processing unit 118 for calculating one of or both of a carbon storage amount of the agricultural site and a greenhouse gas emission reduction amount by using the first through third data acquired by the data acquiring unit 116.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] An embodiment of the present invention relates to a system and method for evaluating the carbon stock and greenhouse gas emissions of agricultural land and providing information on the contribution to agricultural businesses, their stakeholders, and consumers. [Background technology]

[0002] Greenhouse gases emitted from agricultural land have been identified as one of the sources of greenhouse gas emissions. For this reason, in the international efforts against climate change, there is a demand for promoting global warming countermeasures in the agricultural sector as well. For example, in Japan, the application of biochar to agricultural land is thought to be effective in increasing agricultural yields as well as storing carbon, and so development of a circular greenhouse gas reduction system, including carbon storage technology, is underway (see, for example, Non-Patent Document 1). Note that biochar refers to carbonized organic matter (biomass) such as agricultural and forestry waste, waste wood, main felling or thinning wood from forests, and food waste. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] "Distributed carbon storage technology using cascading wood biomass," Internet<https: / / www.challenge-zero.jp / jp / casestudy / 257> Summary of the Invention [Problem to be solved by the invention]

[0004] Application of biochar to agricultural land not only increases crop yields but also reduces the greenhouse gas nitrous oxide (N 2 O) and methane (CH 4It is said that biochar is effective in suppressing the generation of carbon dioxide and storing carbon in the soil. However, in order to promote the use of biochar in the agricultural sector, it is necessary to visualize for not only agricultural businesses but also general consumers how effective its use is in storing carbon in the soil and suppressing greenhouse gases, and how much it contributes to increasing agricultural yields.

[0005] In view of the above background, one of the objects of the present invention is to visualize agricultural businesses using biochar. Another object of the present invention is to improve the traceability of products (agricultural products) provided in agricultural businesses using biochar. Another object of the present invention is to popularize agriculture that stores carbon in the soil (hereinafter also referred to as "carbon storage agriculture"). [Means for solving the problem]

[0006] A carbon storage agriculture evaluation system according to one embodiment of the present invention includes a data acquisition unit that reads from storage first data indicating characteristics of a soil improvement material containing biochar, second data including the amount of the soil improvement material containing biochar applied to the agricultural land, the type and area of ​​the agricultural land, and the type and amount of fertilizer applied, and third data including the variety and harvest yield of the crops grown in the agricultural land, and a data processing unit that calculates one or both of the carbon storage amount and greenhouse gas emission reduction amount of the agricultural land using the first to third data acquired by the data acquisition unit.

[0007] A carbon storage agriculture evaluation method according to one embodiment of the present invention includes: A method for providing carbon storage agriculture evaluation information provided by a first server of a carbon storage agriculture promotion business, comprising: the first server reading first data indicating characteristics of a soil improvement material containing biochar from a first database; the first server acquiring, from a second server of an agricultural business or an agricultural support business, second data including the amount of the soil improvement material containing biochar applied to the agricultural land, the type and area of ​​the agricultural land, and the type and amount of fertilizer applied, and third data including the variety and harvest yield of agricultural crops grown in the agricultural land; the first server calculating one or both of the carbon storage amount and greenhouse gas emission reduction amount of the agricultural land using the first to third data; and the first server providing information obtained by the calculation to the second server. Effect of the Invention

[0008] According to one embodiment of the present invention, the amount of carbon stored in soil and / or the amount of greenhouse gas reduction are calculated and evaluated based on the characteristics of soil improvement materials containing biochar, information on the agricultural land where the soil improvement materials containing biochar have been mixed, and information on the variety and yield of the agricultural crops produced on the agricultural land, thereby making it possible to visualize the contribution of agricultural businesses using biochar to global warming countermeasures and to increase traceability. In addition, by applying a point service program (loyalty program) that awards points to agricultural businesses and consumers according to the degree of contribution, carbon storage agriculture using biochar can be popularized. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a diagram showing the parties directly and indirectly involved in the carbon storage agriculture assessment system according to one embodiment of the present invention. [Diagram 2] FIG. 1 is a diagram explaining the significance of carbon storage agriculture. [Diagram 3] 1 is a diagram showing the hardware configuration of a carbon storage agriculture evaluation system according to one embodiment of the present invention and devices connected thereto. [Figure 4] FIG. 2 is a diagram illustrating the functional configuration of a first server that constitutes the carbon storage agriculture evaluation system according to one embodiment of the present invention. [Diagram 5] FIG. 2 is a diagram illustrating the functions of a carbon storage agriculture evaluation system according to one embodiment of the present invention. [Figure 6] FIG. 2 is a diagram illustrating the flow of processing executed in the carbon storage agriculture evaluation system according to one embodiment of the present invention. [Figure 7] FIG. 2 is a diagram illustrating the functional configuration of a data processing unit in the carbon storage agriculture evaluation system according to one embodiment of the present invention. [Figure 8] FIG. 1 is a diagram illustrating the flow of processing performed when calculating the amount of carbon dioxide reduction per ton of a soil improvement material containing biochar in a carbon storage agriculture evaluation system according to one embodiment of the present invention. [Figure 9] FIG. 1 is a diagram illustrating the flow of processing performed when calculating the amount of carbon dioxide reduction per ton of a soil improvement material containing biochar in a carbon storage agriculture evaluation system according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments of the present invention will be described with reference to the drawings. However, the present invention can be implemented in many different aspects, and should not be interpreted as being limited to the description of the embodiments exemplified below. In the drawings, the width, thickness, shape, etc. of each part may be shown schematically compared to the actual aspect in order to make the explanation clearer, but it is merely an example and does not limit the interpretation of the present invention. In this specification and each figure, elements similar to those described above with respect to the previous figures may be given the same reference numerals (or reference numerals with a, b, etc. added after the numerals) and detailed explanations may be omitted as appropriate. Furthermore, the letters "first" and "second" added to each element are convenient marks used to distinguish each element, and have no further meaning unless otherwise explained.

[0011] "Biochar" is defined as a solid material produced by heating biomass at a temperature of over 350°C under an oxygen concentration controlled to a non-combustible level (2019 Improved IPCC Guidelines). In this embodiment, in addition to white charcoal, black charcoal, bamboo charcoal, powdered charcoal, and sawdust charcoal derived from wood and bamboo, charcoal derived from livestock manure, herbaceous plants, rice husks and rice straw, nuts, paper sludge and sewage sludge, and charcoal produced as a by-product by generating electricity using a wood biomass gasification power generation device using wood are included. Biochar also includes biochar in which phosphorus and iron are supported on charcoal having a porous structure (hereinafter also referred to as "phosphorus charcoal"). Details of biochar in which phosphorus and iron are supported are disclosed in JP 2019-107632 A and JP 2020-011211 A. In the following description, "biochar" includes the biochars exemplified above and similar ones unless otherwise specified. In addition, the term "soil improvement material containing biochar" refers to biochar, and also includes a mixture of biochar with other additives, for example, a mixture of biochar and compost.

[0012] 1. Overall structure of the carbon storage agriculture evaluation system 1 shows the parties directly and indirectly involved in a carbon storage agriculture evaluation system according to one embodiment of the present invention. The carbon storage agriculture evaluation system is operated by parties involved in carbon storage agriculture. Carbon storage agriculture is carried out with the involvement of a soil improvement material producer 204 including biochar, an agricultural support business operator 202, an agricultural business operator 206 that performs carbon storage agriculture, and a carbon storage agriculture promotion business operator 200. Carbon storage agriculture also involves a retailer 208 that sells the products (agricultural products) and a consumer 210 that consumes the products (agricultural products).

[0013] In this embodiment, the soil improvement material producer 204 is a producer that produces biochar and the like.

[0014] In this embodiment, the agricultural support business operator 202 is a business such as a for-profit corporation, a non-profit corporation, a public corporation, or a sole proprietorship, an organization (association) whose members have joined together for a certain purpose, or an organization (association) established by a contract in which multiple parties invest and operate a joint business, such as a cooperative organized by farmers.

[0015] In this embodiment, the agricultural business operator 206 refers to a person, whether an individual or a corporation, who engages in carbon storage agriculture and provides products (agricultural products) for a fee or free of charge. There are no particular limitations on the type or size of the agricultural land on which the agricultural business operator 206 practices agriculture. Types of agricultural land include fields (farmland where vegetables, grains, etc. are grown without storing water), paddy fields, orchards, etc.

[0016] In this embodiment, the carbon storage agriculture promotion business 200 is composed of a for-profit corporation, a non-profit corporation, a public corporation, a private business owner, or other enterprise that utilizes biochar and promotes carbon storage agriculture, or an association (corporation) whose members are united for a certain purpose, etc. The carbon storage agriculture promotion business 200 is also the entity that operates the carbon storage agriculture evaluation system.

[0017] The carbon storage agriculture evaluation system according to this embodiment is constructed by hardware resources and software resources using the first server 102. In another embodiment, the carbon storage agriculture evaluation system is constructed by hardware resources and software resources using the first server 102 and the second server 106. As shown in FIG. 1, the first server 102 belongs to a carbon storage agriculture promotion business operator 200, and the second server 106 belongs to an agricultural support business operator 202. The first server 102 may be connected to a first storage 104, and the second server 106 may be connected to a second storage 108. The first storage 104 and the second storage 108 are devices that electronically store information in a computer system and operate in conjunction with the server. Although not shown, the carbon storage agriculture evaluation system according to this embodiment may be constructed by a distributed cloud.

[0018] The application of biochar to agricultural land is said to be effective in improving soil permeability, water retention, and air permeability, as well as neutralizing and improving fertilizer retention. In addition, the application of biochar to agricultural land reduces the greenhouse gas nitrous oxide (N 2 O) and methane (CH 4 It is expected that biochar will suppress the generation of carbon dioxide and store carbon in the soil for a long period of time. However, biochar is made from a variety of raw materials, and the amount of carbon that can be stored varies depending on the carbonization conditions. It has also been pointed out that the carbon storage effect varies depending on the soil of the agricultural land where biochar is applied, the use of the agricultural land (paddy field, field), and the crops cultivated.

[0019] The carbon storage agriculture evaluation system of this embodiment has the function of tracing (tracking) from the production stage to the final consumption stage, based on the characteristics of soil improvement materials containing biochar that have carbon storage capacity, to what extent the soil improvement materials containing biochar were applied to what type of agricultural land, and to what extent agricultural crops were produced and distributed to the market, and evaluating and visualizing to what extent carbon was stored in the soil and greenhouse gas emissions were reduced.

[0020] The soil improvement material producer 204 produces soil improvement materials such as biochar, biochar carrying phosphorus and iron, and a mixture of biochar or biochar carrying phosphorus and iron with compost. The soil improvement material producer 204 produces soil improvement materials including biochar and delivers them to the agricultural support business operator 202.

[0021] An agricultural support business operator 202 purchases soil improvement materials including biochar from a soil improvement material producer 204. The agricultural support business operator 202 requests an analysis of the purchased soil improvement materials including biochar from a carbon storage agriculture promotion business operator 200. The agricultural support business operator 202 may request an analysis of the soil improvement materials from another analysis institution and provide the analysis data to the carbon storage agriculture promotion business operator 200.

[0022] Agricultural support business 202 provides (sells) soil improvement materials, including biochar, to be mixed into agricultural land, and chemical fertilizers to agricultural business operator 206. Agricultural support business operator 202 provides guidance and management of carbon storage agriculture to agricultural business operator 206, purchases products (agricultural products) produced by carbon storage agriculture, and sells them to retailers 208 (or wholesalers) or directly to consumers 210.

[0023] Agricultural business operator 206 engages in carbon storage agriculture. Carbon storage agriculture refers to agriculture in which biochar, biochar loaded with phosphorus and iron, and these with compost added are mixed into the soil as soil improvement materials and carbon storage in the soil of agricultural land. Biochar is difficult to decompose and is stable, so it can store carbon dioxide from the atmosphere in the solid state of charcoal in the soil for a long period of time.

[0024] Carbon storage agriculture is applicable regardless of the form of agriculture, such as paddy fields, farmland, orchards, etc. In addition, there are no particular limitations on the products (agricultural products) that agricultural business operators 206 produce on agricultural land. There are no particular limitations on the products (agricultural products) produced by carbon storage agriculture, as long as they are produced using soil as a medium, excluding hydroponic cultivation, such as grains such as rice, wheat, beans, etc., vegetables such as tomatoes, cucumbers, cabbage, radishes, etc., and fruits such as mandarin oranges, pears, apples, etc.

[0025] The agricultural business operator 206 farms on agricultural land mixed with soil improvement materials including biochar, and has all or part of the produce (agricultural products) purchased by the agricultural support business operator 202. Note that chemical fertilizers may be used in the carbon storage agriculture carried out by the agricultural business operator 206.

[0026] Carbon storage agriculture promotion business 200 evaluates the carbon storage capacity of soil improvement materials including biochar, ranks them, and provides information on appropriate fertilizer application amounts. Carbon storage agriculture promotion business 200 also manages the distribution of soil improvement materials including biochar, and provides information on products (agricultural products) produced by carbon storage agriculture. Furthermore, carbon storage agriculture promotion business 200 operates a point service program (loyalty program), provides application programs used by consumers 210, and disseminates and raises awareness of carbon storage agriculture through the planning and holding of various events.

[0027] Retailer 208 purchases produce (agricultural products) produced through carbon storage agriculture from agricultural support business operator 202 and sells them to consumer 210. A wholesaler may be interposed between agricultural support business operator 202 and retailer 208. Consumer 210 is a person who consumes agricultural products produced through carbon storage agriculture, regardless of whether he or she is a natural person or a corporation.

[0028] Figure 1 shows the flow of materials and information that are directly or indirectly involved in the carbon storage agriculture assessment system. The flow of materials and information is explained below.

[0029] (1) Request for evaluation of soil improvement materials including biochar An agricultural support business operator 202 who has purchased soil improvement materials containing biochar from a soil improvement material producer 204 requests an evaluation of the soil improvement materials containing biochar to a carbon storage agriculture promotion business operator 200. Biochar has different carbon storage amounts depending on the raw materials, and knowing the characteristics of soil improvement materials containing biochar is meaningful in terms of cooperating in global warming countermeasures through carbon storage agriculture.

[0030] The carbon storage agriculture promotion business operator 200 analyzes the characteristics of the soil improvement material containing biochar. The content of the analysis varies, but for example, the amount of persistent organic carbon contained in the biochar is analyzed. By analyzing the amount of persistent organic carbon, it is possible to know to what extent carbon can be stored in the soil in a stable state, and this can be used as an index for knowing the quality of the soil improvement material containing biochar. In addition, when using biochar carrying phosphorus and iron, the amount of persistent organic carbon, phosphorus, and iron contents are analyzed. Phosphorus is a component necessary for plant growth, and knowing the phosphorus content can be used as an index for knowing the quality of the soil improvement material containing biochar. In addition, when the soil improvement material containing biochar contains compost, the amount of solids before air drying and the amount of solids after air drying are analyzed. The carbon storage agriculture promotion business operator 200 stores the analysis result of the soil improvement material containing biochar in the first storage 104.

[0031] (2) Notification of evaluation results of soil improvement materials including biochar The carbon storage agriculture promotion business operator 200 notifies the agricultural support business operator 202 of the evaluation result of the soil improvement material containing biochar. The evaluation result includes information such as the amount of persistent organic carbon, phosphorus, iron content, solid content before air drying, and solid content after air drying, depending on the variety of the soil improvement material containing biochar. In addition, the carbon storage agriculture promotion business operator 200 creates an application prescription based on the evaluation result of the soil improvement material containing biochar and provides it to the agricultural support business operator 202. The carbon storage agriculture promotion business operator 200 can use an identifier (for example, a two-dimensional code such as a barcode or QR code (registered trademark), the same applies below) to associate the soil improvement material containing biochar with the application prescription and to distinguish it from other products of the same or similar soil improvement material. The identifier is issued by the first server 102, and information associating the identifier with the soil improvement material containing biochar is stored in the first storage 104.

[0032] (3) Provision of soil improvement materials, including biochar The agricultural support business 202 sells soil improvement materials containing biochar to the agricultural business 206. At this time, the agricultural support business 202 records the type, sales amount, sales destination, and sales date of the soil improvement materials containing biochar. These can be managed by an identifier attached to the soil improvement materials containing biochar. The sale and management of the soil improvement materials containing biochar by the agricultural support business 202 is performed using the second server 106 and the second storage 108.

[0033] Based on the application prescription created by the analysis of the soil improvement material including biochar, the agricultural support business operator 202 provides the agricultural business operator 206 with information on the appropriate application amount and gives guidance thereon. The agricultural support business operator 202 also sells chemical fertilizers to the agricultural business operator 206, and records the sales amount, sales destination, and sales date in the same manner as above.

[0034] (4) Carbon storage agriculture by agricultural businesses The agricultural business operator 206 mixes soil improvement materials containing biochar into agricultural land, cultivates crops, and harvests the crops. By mixing the soil improvement materials containing biochar into agricultural land, carbon is stored in the soil. As described below, methane (CH 4 ) and nitrous oxide (N 2 O), but by incorporating soil improvement materials containing biochar, these greenhouse gas emissions can be offset.

[0035] Agricultural business operator 206 sells all or part of the harvested products (crops) to agricultural support business operator 202. Agricultural support business operator 202 purchases the products (crops) from agricultural business operator 206. Agricultural support business operator 202 purchases the products (crops) produced by carbon storage agriculture at a price that is a predetermined amount higher than the purchase price of other agricultural products not produced by carbon storage agriculture. In other words, agricultural support business operator 202 considers that the products (crops) produced by carbon storage agriculture have brand value, and purchases the products (crops) from agricultural business operator 206 at a price that is a predetermined brand price higher.

[0036] The agricultural support business operator 202 collects information (data) on carbon storage agriculture from the agricultural business operator 206. The information (data) on carbon agriculture includes the amount of soil improvement materials including biochar used in cultivating the crops, information on identifiers attached to the soil improvement materials including biochar, the amount of chemical fertilizer used, the production area, the type of agricultural land, the area of ​​the agricultural land, the type of agricultural crop, the cultivation period, the yield of the product (agricultural produce), producer information, etc. This information is collected by the second server 106, and the collected information is stored in the second storage 108.

[0037] (5) Providing information on carbon storage agriculture to carbon storage agriculture promotion businesses The agricultural support business operator 202 provides the carbon storage agriculture promotion business operator 200 with information on carbon storage agriculture collected from the agricultural business operator 206. The agricultural support business operator 202 reports information (data) on the amount of soil improvement materials including biochar used in cultivating agricultural crops, information on identifiers attached to the soil improvement materials including biochar, the amount of chemical fertilizer used, the production area, the type of agricultural land, the area of ​​the agricultural land, the type of agricultural crop, the cultivation period, the yield of the product (agricultural produce), etc. to the carbon storage agriculture promotion business operator 200. The first server 102 and the second server 106 are connected via an electric communication line (hereinafter also referred to as a "network"), and the provision of information on carbon storage agriculture is performed by transmitting data from the second server 106 to the first server 102.

[0038] (6) Evaluating the product and providing the results The carbon storage agriculture promotion business operator 200 calculates the amount of carbon stored in the soil and the amount of greenhouse gas emission reduction using information transmitted from the agriculture support business operator 202, such as the amount of soil improvement materials including biochar used in the cultivation of agricultural crops, information on identifiers attached to the soil improvement materials including biochar, the amount of chemical fertilizer used, the production area, the type of agricultural land, the area of ​​the agricultural land, the type of agricultural crop, the cultivation period, and the harvest amount of the product (agricultural product).The carbon storage agriculture promotion business operator 200 then evaluates the extent to which the harvested agricultural crop (products produced by the agricultural business) contributed to the reduction of greenhouse gases.This evaluation is performed by assigning a rank or grade to each agricultural land and each product (agricultural product) produced on that agricultural land in order of the amount of greenhouse gas emission reduction, and ranking is performed in an intuitive manner.

[0039] The identifier attached to the soil improvement material containing biochar is also attached to the products (crops) produced on the agricultural land that the soil improvement material containing biochar was mixed in. By clarifying the correspondence between the soil improvement material containing biochar and the products (crops) produced on the agricultural land that it was mixed in, it is possible to clarify the correspondence of the extent to which the production of the products (crops) contributed to the reduction of greenhouse gas emissions.

[0040] The calculation and evaluation of the amount of carbon storage and greenhouse gas emission reductions performed by the carbon storage agriculture promotion business operator 200 are executed by the first server 102, and the results are stored in the first storage 104. The carbon storage agriculture promotion business operator 200 provides ranking information to the agriculture support business operator 202. This information is provided by transmitting data from the first server 102 to the second server 106.

[0041] The carbon storage agriculture promotion business operator 200 can provide a points service (loyalty program). For example, the carbon storage agriculture promotion business operator 200 can give points according to the rank given to the harvested agricultural crops (products of the agricultural business) and manage them by an identifier. The carbon storage agriculture promotion business operator 200 can provide the agricultural support business operator 202 with information regarding the points given to the harvested agricultural crops (products of the agricultural business).

[0042] (7) Sales of produce by agricultural support businesses The agricultural support business operator 202 sells the products (agricultural products) produced by carbon storage agriculture to the retailer 208. The wholesale price of the products (agricultural products) is appropriately set by the agricultural support business operator 202 alone or by both the agricultural support business operator 202 and the retailer 208. At this time, the agricultural support business operator 202 can sell the products (agricultural products) produced by carbon storage agriculture at a price that is a predetermined amount higher than the purchase price of other agricultural products not produced by carbon storage agriculture. In other words, the agricultural support business operator 202 considers that the products (agricultural products) produced by carbon storage agriculture have brand value, and can sell them to the retailer 208 at a price that is a predetermined brand price higher.

[0043] (8)-(9) Sale of products by retailers Retailer 208 sells the products (agricultural products) produced by carbon storage agriculture to consumer 210. Retailer 208 sells the products (agricultural products) produced by carbon storage agriculture at a price that is a specified amount higher than the purchase price of other agricultural products not produced by carbon storage agriculture, and consumer 210 pays an amount according to the selling price.

[0044] Furthermore, retailers 208 can display and sell the produce (agricultural products) with the identifiers attached to them. Consumers 210 can install an application program provided by carbon storage agriculture promotion business operator 200 on their own terminals (mobile terminals such as smartphones and tablet terminals) and use it when purchasing the produce (agricultural products). For example, consumers 210 can read the identifiers attached to the produce (agricultural products) with their own terminals and obtain information such as the production value of the produce (agricultural products) they are purchasing, information about the producer, that the produce (agricultural products) was produced using carbon storage agriculture, and the extent to which it contributes to reducing greenhouse gas emissions.

[0045] (10)-(11) Point redemption The consumer 210 purchases the produce (agricultural products) from the retailer 208 at a selling price that includes an amount equivalent to the points. The consumer 210 reads the identifier attached to the produce (agricultural products) with his / her own terminal, and can access a point service program (loyalty program) site to acquire the points assigned to the produce (agricultural products). The consumer 210 can acquire points every time he / she purchases a produce (agricultural products) produced by carbon storage agriculture. The point service program (loyalty program) is provided by the carbon storage agriculture promotion business operator 200. The consumer 210 can receive services provided by the carbon storage agriculture promotion business operator 200 according to the acquired points.

[0046] The retailer 208 collects a specified fee from the amount equivalent to the points, and pays the amount equivalent to the remaining points to the agricultural support business operator 202. The agricultural support business operator 202 collects a specified fee from the amount equivalent to the points paid by the retailer 208, and pays the amount equivalent to the remaining points to the carbon storage agriculture promotion business operator 200.

[0047] 2. Points service program provided by the Carbon Storage Agriculture Assessment System Next, an example of a points service program provided by the carbon stock assessment system will be described with reference to FIG.

[0048] (a) First, an agricultural support business operator 202 purchases biochar or a soil improvement material containing biochar from a soil improvement material producer 204. For example, the agricultural support business operator 202 purchases a predetermined amount (e.g., 25 tons) of soil improvement material containing biochar.

[0049] (b) The agricultural support business operator 202 requests the carbon storage agriculture promotion business operator 200 to analyze the soil improvement material containing biochar that the agricultural support business operator 202 has purchased. The agricultural support business operator 202 samples the purchased soil improvement material containing biochar and requests the carbon storage agriculture promotion business operator 200 to analyze it. It is assumed that the analysis result shows that the persistent organic carbon in the soil improvement material containing biochar purchased by the agricultural support business operator 202 is 20%, for example.

[0050] (c) Based on the analysis results, the carbon storage agriculture promotion business 200 will use carbon dioxide (CO 2 According to the above example, the soil improvement material containing biochar purchased by agricultural support business 202 contains 5 tons of persistent organic carbon, which is equivalent to 10 tons of carbon dioxide (CO 2 ), this is equivalent to 18.3 tons. 2 ) is stored at a certain point (e.g., carbon dioxide (CO 2 (1 point per 1 g) can be awarded, and the information can be managed by the first server 102. For example, 18,333,333 points can be awarded to soil improvement materials containing biochar purchased by the agricultural support business operator 202.

[0051] (d) Agricultural support business operator 202 provides soil improvement materials containing biochar to agricultural business operators 206. For example, agricultural support business operator 202 transfers soil improvement materials containing biochar to one (or one person, or one location) or multiple (or multiple people, or multiple locations) agricultural business operators 206 with or without payment. When agricultural support business operator 202 provides soil improvement materials containing biochar to agricultural business operators 206 free of charge, there may be a premise that agricultural support business operator 202 purchases the produce (agricultural products) from agricultural business operators 206 in bulk.

[0052] (e) The agricultural business operator 206 fertilizes farmland with soil improvement materials including biochar to produce agricultural crops, and the agricultural support business operator 202 purchases the output (agricultural products) from the agricultural business operator 206. For example, if the agricultural business operator 206 cultivates specific vegetables on farmland fertilized with soil improvement materials including biochar (cultivating them using carbon storage agriculture), and the total harvest volume (harvest volume per unit area) is 42,000 kg / ha, and the average weight of each specific vegetable is 1 kg, then 42,000 specific vegetables will have been harvested.

[0053] (f) The agricultural support business operator 202 acquires information on points granted by the carbon storage agriculture promotion business operator 200, and grants points to specific vegetables based on the points and sells them to the retailer 208. For example, the point information is provided from the first server 102 to the second server 106. According to the above example, 437 points are granted for each specific vegetable, and an identifier (e.g., a two-dimensional barcode, a QR code (registered trademark)) to which the information is granted is attached to the specific vegetable as a product and sold to the consumer 210. In addition to the points, the identifier can include information such as the producer, the place of production, the type and amount of fertilizer used (including soil improvement materials including biochar), and the amount of carbon storage.

[0054] (g) The retailer 208 sells a specific vegetable with points to the consumer 210 at a specified premium price, and the consumer 210 purchases the specific vegetable at the premium price. After the purchase, the consumer 210 reads the identifier information using his / her own terminal and obtains the points assigned to the specific vegetable. The consumer 210 can collect points and receive various services provided by the carbon storage agriculture promotion business 200, which motivates the consumer 210 to purchase products (agricultural products) produced by carbon storage agriculture even if they are more expensive. For example, the carbon storage agriculture promotion business 200 provides a site for a points service program on the first server 102, and the consumer 210 can access the site to learn information about the production of a specific vegetable, manage his / her own points, and apply for various services according to the points.

[0055] It should be noted that one business operator may serve as two or more of the agricultural support business operator 202, agricultural business operator 206, and retailer 208. For example, an agricultural production corporation can serve as both the agricultural support business operator 202 and the agricultural business operator 206. Furthermore, food electronic commerce (EC) is commercial trading of food conducted over the internet, and can serve as the agricultural support business operator 202, agricultural business operator 206, and retailer 208.

[0056] (h) The increased revenue obtained by selling the specific agricultural crop is distributed to each entity. The carbon storage agriculture promotion business operator 200, the agricultural support business operator 202, the agricultural business operator 206, and the retailer 208 can receive a distribution of the increased revenue obtained by selling the specific vegetable. For example, if an increased revenue of 20 yen is obtained by selling the specific vegetable, the retailer 208 can receive 2 yen, the agricultural support business operator 202 can receive 12 yen, the carbon storage agriculture promotion business operator 200 can receive 2 yen, and the agricultural business operator 206 can receive 4 yen. In this way, each business entity can earn a profit according to the contribution of carbon storage agriculture, and the agricultural support business operator 202 can use the profit as a source of funds when purchasing biochar and soil improvement materials including biochar from the soil improvement material producer 204.

[0057] According to such a point service program related to carbon storage agriculture, consumers 210 can obtain not only the privileges of the point program, but also information on the produce (agricultural products) and information (visualization) on the degree of contribution to decarbonization, and can be motivated to continue purchasing agricultural products produced by carbon storage agriculture. Agricultural business operators 206 can obtain information (visualization) on the branding of the produce (agricultural products), the expansion of sales channels, and the degree of contribution to decarbonization, and can be motivated to engage in carbon storage agriculture by directly or indirectly connecting with consumers 210. In addition, agricultural support business operators 202 can improve their relationship with agricultural business operators 206, increase their sales, and contribute to a decarbonized society.

[0058] In this section, an example has been given in which points are awarded based on the amount of persistent organic carbon contained in biochar or soil improvement materials containing biochar. However, the present invention is not limited to this example. Points may be awarded based on the amount of greenhouse gas reduction in the agricultural land where the product (agricultural product) is produced, taking into consideration not only the amount of biochar or soil improvement materials containing biochar used but also the amount of nitrogen fertilizer (chemical fertilizer) used.

[0059] In order to manage the distribution of products (agricultural products) produced through carbon storage agriculture, the carbon storage agriculture promotion business 200 certifies retailers 208 according to their sales records. By distributing products (agricultural products) produced through carbon storage agriculture through certified retailers 208, it is possible to prevent piggybacking sales tactics and the distribution of counterfeit goods.

[0060] Carbon storage agriculture promotion business 200 also provides consumers 210 with information such as which retailers are selling products (crops) produced through carbon storage agriculture, information on the production area and producers, and the extent to which the products are contributing to the reduction of greenhouse gas emissions. Carbon storage agriculture promotion business 200 also provides consumers 210 with a point service program to motivate purchases and promote consumption, thereby promoting the spread of carbon storage agriculture.

[0061] Figure 2 explains the significance of carbon storage agriculture. Carbon is absorbed from the atmosphere by plants in the form of carbon dioxide through photosynthesis, and when the plants die, the carbon accumulates in the soil. The carbon in the soil (organic matter) is then released into the atmosphere, circulating between the atmosphere, plants, and soil. Because soil carbon (organic matter) comes from the carbon absorbed from the atmosphere by plants through photosynthesis, an increase in the amount of carbon in the soil corresponds to a corresponding decrease in the amount of carbon dioxide in the atmosphere. Therefore, if carbon can be stably accumulated in the soil, it is possible to reduce atmospheric carbon. And the more land cultivated for carbon storage agriculture increases, the more it can contribute to reducing greenhouse gas emissions.

[0062] In the carbon cycle shown in Figure 2, carbon can be stored in soil by mixing biochar into it. As mentioned above, the application of biochar to agricultural land is said to be effective in improving soil permeability, water retention, and breathability, as well as neutralizing and enhancing fertilizer retention. Therefore, the application of soil improvement materials including biochar to agricultural land can contribute not only to reducing greenhouse gas emissions, but also to increasing agricultural crop yields.

[0063] 3.Hardware configuration of the carbon storage agriculture evaluation system 3 shows a carbon storage agriculture evaluation system according to one embodiment of the present invention and the relationship between devices connected thereto. The carbon storage agriculture evaluation system is constructed by a first server 102. The carbon storage agriculture evaluation system is further constructed by a second server 106 connected to the first server 102 via a network.

[0064] The first server 102 and the second server 106 are connected to each other in a state where they can communicate bidirectionally via a network. The first server 102 belongs to the carbon storage agriculture promotion business 200, and the second server 106 belongs to the agricultural support business 202. In addition, a first terminal 110 belonging to the agricultural business 206, a second terminal 112 belonging to the retailer 208, and a third terminal 114 belonging to the consumer 210 are each connected to the network. The first server 102, the first terminal 110, the second terminal 112, and the third terminal 114 are each connected to each other in a state where they can communicate bidirectionally via a network. Similarly, the second server 106, the first terminal 110, the second terminal 112, and the third terminal 114 are each connected to each other in a state where they can communicate bidirectionally via a network.

[0065] By connecting via such a network, for example, the first server 102 can provide the third terminal 114 with information on retailers selling products (crops) produced by carbon storage agriculture, information on producers and production areas, information on the degree of contribution to greenhouse gas emission reduction, and the like, and can provide a point service program. Also, the second server 106 can provide the first terminal 110 with information on proper application of soil improvement materials containing biochar, and can receive from the first terminal 110 the consumption amount of soil improvement materials containing biochar, information on identifiers attached to the soil improvement materials containing biochar, the amount of chemical fertilizer used, the production area, the type of agricultural land, the area of ​​agricultural land, the type of agricultural crop, the cultivation period, the yield of the product (agricultural product), and information on the producer. In addition, the second server 106 can provide the second terminal 112 with information such as the variety, quantity, and sales price of products (agricultural products) produced through carbon storage agriculture, and can receive information regarding the sales volume and sales of the products (agricultural products) from the second terminal 112.

[0066] The first server 102 and the second server 106 are constructed with hardware resources such as a CPU (Central Processing Unit), memory, and communication circuits, and are driven by software resources to realize desired functions. The first storage 104 and the second storage 108 are constructed with a hard disk, a semiconductor memory, an optical disk, and the like. The first terminal 110, the second terminal 112, and the third terminal 114 are constructed with electronic devices such as desktop or notebook type personal computers, tablet terminals, and smartphones.

[0067] 4. Functional configuration of the first server 4 shows a functional configuration of the first server 102 used in the carbon stock evaluation system. The first server 102 includes a data acquisition unit 116, a data processing unit 118, a data evaluation unit 120, and a point setting unit 122.

[0068] The data acquisition unit 116 has a function of acquiring first data DA1 indicating the characteristics of the soil improvement material containing biochar, second data DA2 including the application amount of the soil improvement material containing biochar in the agricultural land, the type and area of ​​the agricultural land, and the type and amount of fertilizer applied, and third data DA3 including the variety and harvest amount of the product (agricultural product) produced in the agricultural land mixed with the soil improvement material containing biochar. The data acquisition unit 116 may acquire the first data DA1, the second data DA2, and the third data DA3 from the same storage device or from different storage devices. For example, the first data DA1 may be stored in the first storage 104 connected to the first server 102, and the second data DA2 and the third data DA3 may be stored in the second storage 108 connected to the second server 106. The first server 102 can acquire the second data DA2 and the third data DA3 stored in different locations by being connected to the second server 106 via a network.

[0069] The data processing unit 118 has a function of calculating the carbon stock amount and the greenhouse gas emission reduction amount of the agricultural land using the first data DA1, the second data DA2, and the third data DA3 acquired by the data acquisition unit 116. The data processing unit 118 has a function of calculating the carbon stock amount and the greenhouse gas emission reduction amount per agricultural crop cultivation.

[0070] The data evaluation unit 120 has a function of ranking the degree of environmental improvement contribution of agricultural crops based on the numerical values ​​of carbon storage and greenhouse gas emission reduction per cultivation of the agricultural crop calculated by the data processing unit 118. The degree of environmental improvement contribution may be evaluated relatively based on the evaluation results of multiple agricultural lands, or may be evaluated based on whether or not a predetermined standard is met based on the absolute values ​​of carbon storage and greenhouse gas emission reduction.

[0071] The point setting unit 122 has a function of assigning points to agricultural products in descending order of the degree of environmental improvement contribution. The point setting unit 122 can set points per agricultural product according to the variety of the agricultural product in descending order of the degree of environmental improvement contribution.

[0072] 5. Functional configuration of the carbon storage evaluation system FIG. 5 shows the contents of information transmitted and received between the first server 102 and the second server 106 in the carbon storage agriculture evaluation system.

[0073] A sample of biochar or a soil improvement material containing biochar provided by an agricultural support business operator 202 is analyzed by a carbon storage agriculture promotion business operator 200. In the analysis, data on the solid content before air drying, solid content after air drying, persistent organic carbon, and nitrogen concentration in the shared sample of the biochar or the soil improvement material containing biochar are obtained. These data are stored in the first storage 104 by the first server 102. The first server 102 provides appropriate fertilizer information for the biochar or the soil improvement material containing biochar to the second server 106 based on these data. The appropriate fertilizer information includes information on the appropriate fertilizer amount per cultivated unit area of ​​the biochar or the soil improvement material containing biochar. The second server 106 provides the appropriate fertilization information to the agricultural business operator 206.

[0074] The agricultural support business operator 202 acquires information on the production of products (agricultural products) from the agricultural business operator 206. The information on the production of products (agricultural products) provided by the agricultural business operator 206 includes information on fertilization, information on harvested items, information on the yield, information on the cultivation period, and information on cultivated land. The information on fertilization includes information on the type of fertilizer applied (the amount of fertilizer applied of biochar or soil improvement material containing biochar, and the distinction between nitrogen fertilizer) and the amount of fertilizer applied. The information on harvested items includes information on the type of product (agricultural product) (lettuce, cabbage, rice, potato, etc.). The information on the yield includes information on the yield of the harvested item. The information on the cultivation period includes information such as the number of cultivation days of the harvested item (for example, 91 days from May 1st to July 30th) and the season. The information on cultivated land includes information such as the type of paddy field or field.

[0075] The information provided by the agricultural business operator 206 may be provided to the second server 106 from the terminal of the agricultural business operator 206. The second server 106 stores the information in the second storage 108. For example, the second server 106 stores the information provided by the agricultural business operator 206 in the second storage 108 as information on the amount of nitrogen fertilizer applied, the nitrogen concentration in the nitrogen fertilizer, the amount of the test fertilizer applied, the paddy field flooding period, the harvested item, and the harvest yield. The information on the amount of nitrogen fertilizer applied and the nitrogen concentration in the nitrogen fertilizer is information on the fertilizer applied by the agricultural business operator 206 separately from the biochar or the soil improvement material containing biochar, and specifically, is information on the use of the nitrogen fertilizer (chemical fertilizer). The nitrogen fertilizer is a commercially available product, and the nitrogen concentration contained in the nitrogen fertilizer can be known by knowing the type of the fertilizer. The information on the amount of test fertilizer applied is information on the amount of biochar or the soil improvement material containing biochar used, provided by the agricultural support business operator 202. Information on the period of flooding of rice paddies is used to calculate the methane (CH 4 ) is data recorded to take into account the quantity

[0076] The second storage may also record information regarding the selling price when the agricultural support business operator 202 sells biochar or soil improvement materials containing biochar to the agricultural business operator 206, and the purchase price of the produce (agricultural products). This information can be used when giving points to the produce (agricultural products).

[0077] The second server 106 provides the first server 102 with information on the amount of nitrogen fertilizer applied, the nitrogen concentration in the nitrogen fertilizer, the amount of test fertilizer applied, the paddy field flooding period, the harvested item, and the harvest yield. The first server 102 calculates the amount of greenhouse gas reduction and the amount of soil carbon storage based on this information. 2 O emission factor, N 2 O greenhouse effect coefficient, paddy field N 2 O suppression rate, CH 4 Greenhouse effect coefficient, paddy field CH 4 Emission factor, paddy CH 4 Values ​​such as the suppression rate are used. These values ​​are default values ​​and may be stored in the first storage 104 or may be built into the calculation program.

[0078] The first server 102 can evaluate (rank) agricultural land from information on greenhouse gas reductions and soil carbon storage, and can calculate points as described in Section 2. The agricultural land evaluation and point information are provided to the second server 106.

[0079] The second server 106 can provide the terminal of the retailer 208 with information about the agricultural business operator 206, production value, and information about applied fertilizer. The second server 106 can also provide the terminal of the retailer 208 with information about points for the produce (agricultural products) provided through a point program service.

[0080] 6. Processing flow in the carbon storage evaluation system 6 shows a flow of a process for evaluating carbon storage agriculture performed by the first server 102. Here, a method for evaluating the amount of greenhouse gas reduction on agricultural land where carbon storage agriculture is performed is shown.

[0081] First, the components of the biochar or the soil improvement material containing biochar are analyzed (S200). The analysis determines the proportion of the persistent organic carbon contained in the biochar or the soil improvement material containing biochar (S202). The analyzed data is stored in the first storage 104 as the first data DA1.

[0082] Next, the type, area, and fertilization information of the agricultural land are acquired (S204). The type of agricultural land includes information for distinguishing between paddy fields and farmland, and the fertilization information includes information on the fertilizer applied to the agricultural land and the amount of fertilizer applied. Fertilizers applied to agricultural land include biochar or soil improvement materials containing biochar, nitrogen fertilizer (chemical fertilizer), compost, etc., and the fertilization information includes information for distinguishing between these. This step S204 is performed by the first server 102 accessing the second server 106 and acquiring the second data DA2 from the second storage.

[0083] A greenhouse gas emission coefficient according to the agricultural land is set (S206). A greenhouse gas emission coefficient is set according to the type of agricultural land (paddy field, farmland) acquired from the second server 106. For this coefficient, for example, a default value published in the Guidelines for Developing Regional Promotion Plans for Global Warming Countermeasures can be used, and the default value may be held by the first server 102 or may be stored in the first storage.

[0084] From the percentage of persistent organic carbon, carbon dioxide (CO 2 ) is calculated (S208).

[0085] Next, if the acquired data includes the amount of nitrogen fertilizer applied, the nitrous oxide N 2 If the agricultural land type is paddy field, the reduction in CH 4 The amount of emissions is calculated (S210).

[0086] Then, the greenhouse gas reduction amount for the agricultural land is calculated using data on the type, area, and fertilization information of the agricultural land, and the data acquired or calculated in steps S206 to S210 (S212).

[0087] At the above stages, the amount of greenhouse gas reduction due to carbon storage agriculture on the agricultural land can be evaluated. Furthermore, points may be set for the agricultural land based on the amount of greenhouse gas reduction (S214). Then, the first server 102 may obtain information (third data DA3) on the production volume of the product (agricultural product) produced on the agricultural land from the second storage 108 via the second server 106 (S216), and may assign the set points to the product (agricultural product) (S218).

[0088] The first server 102 can evaluate the amount of greenhouse gas reduction in carbon storage agriculture by the process shown in Fig. 6. The first server 102 can also execute a point service program (loyalty program) by giving points to products (agricultural products) based on the amount of greenhouse gas reduction in agricultural land.

[0089] 7. Functional configuration of the data processing unit Fig. 7 shows a functional configuration of the data processing unit 118 in the first server 102 shown in Fig. 4. The data processing unit 118 includes an iron content determination unit 124, a fertilizer application determination unit 126, a nitrogen content determination unit 128, a cultivated land determination unit 130, a fertilizer application amount information acquisition unit 132, and a calculation processing unit 134. The first data DA1, second data DA2, and third data DA3 shown in Fig. 4 are input to the data processing unit 118, and calculation processing is performed. In the data processing unit 118, the above-mentioned units organically cooperate with each other to perform each process of S208 to S218 shown in Fig. 6.

[0090] The iron content determination unit 124 determines whether the soil improvement material containing biochar contains iron from the first data DA1 indicating the characteristics of the soil improvement material containing biochar. The fertilizer determination unit 126 determines whether the soil improvement material containing biochar contains compost by referring to the first data DA1. The nitrogen content determination unit 128 determines whether the fertilizer applied to the agricultural land contains a fertilizer containing nitrogen from the second data DA2 including the amount of the soil improvement material containing biochar applied to the agricultural land, the type and area of ​​the agricultural land, and the type and amount of the applied fertilizer. The cultivated land determination unit 130 determines the type of the cultivated land (paddy field or field) from the second data DA2. The fertilizer amount information acquisition unit 132 acquires data on the area of ​​the agricultural land, the amount of fertilizer applied to the agricultural land, the amount of solids of the soil improvement material containing biochar, and the amount of fertilizer applied when the fertilizer containing nitrogen is applied from the second data DA2.

[0091] The calculation processing unit 134 calculates the amount of carbon dioxide reduction per agricultural land based on the determination results of the iron content determination unit 124, the fertilizer application determination unit 126, the nitrogen content determination unit 128, and the cultivated land determination unit 130, and the data acquired by the fertilizer application amount information acquisition unit 132. As an example of a calculation method, first, the amount of carbon dioxide reduction per ton of the soil improvement material containing biochar is calculated. Then, the amount of carbon dioxide reduction per agricultural land is calculated by multiplying the amount of carbon dioxide reduction per ton of the soil improvement material containing biochar by the area of ​​the agricultural land (fertilized area), the amount of fertilizer applied to the agricultural land, and the amount of solids in the soil improvement material containing biochar.

[0092] The calculation method performed by the calculation processing unit 134 varies depending on the contents of the soil improvement material containing biochar, whether it contains nitrogen, and the type of cultivated land. An example of the calculation processing method performed by the data processing unit 118 for the amount of carbon dioxide reduction per ton of the soil improvement material containing biochar will be described with reference to Figures 8 and 9.

[0093] 8. Contents of processing in the data processing unit 8 and 9 show the flow of processing performed when the data processing unit 118 calculates the amount of carbon dioxide reduction per ton of the soil improvement material containing biochar. The first data DA1, the second data DA2, and the third data DA3 are input to the data processing unit 118, and the data content is judged in the order shown in Figs. 8 and 9 to calculate the amount of carbon dioxide reduction per ton of the soil improvement material containing biochar.

[0094] First, it is determined whether or not the soil improvement material containing biochar contains iron (S301). As described above, there are various types of soil improvement materials containing biochar, and biochar carrying phosphorus and iron contains 1% or more of iron, while other biochars have an iron content of 1% or less. Therefore, in order to determine the type of soil improvement material containing biochar, it is determined whether or not it contains iron.

[0095] If it is determined that the iron content is 1% or more, it is determined whether or not the soil improvement material containing biochar contains compost (S303). Since some soil improvement materials containing biochar contain compost and some do not, it is determined whether or not compost is present.

[0096] If it is determined that the soil improvement material containing biochar contains compost, determine whether or not fertilizer containing nitrogen has been applied (S305). Most chemical fertilizers contain nitrogen. When fertilizer containing nitrogen is applied, some of the nitrogen is converted into nitrous oxide (N 2 O) and released from the soil into the atmosphere. The amount of greenhouse gas emission reduction depends on whether or not fertilizer containing nitrogen is applied, so it is important to determine whether or not to apply it.

[0097] If it is determined that fertilizer containing nitrogen has been applied, it is determined whether the cultivated land is a paddy field or a field (S307). It is known that paddy fields and field fields emit different types of greenhouse gases into the atmosphere. For example, in paddy fields, when the soil becomes reduced by filling it with water, methane-producing bacteria start to emit methane (CH 4 On the other hand, in farmland, chemical fertilizers and compost used as organic matter contain nitrogen, which causes nitrous oxide (N2 O) and is released into the atmosphere.

[0098] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (A). Formula (A): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + (N content in test sample [%] + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%]) x Paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [%] + Paddy CH 4 Emission factor [t-CH 4 / ha] ÷ Test sample fertilization weight [t / ha] × Paddy field flooding period [(months)] ÷ 12 × CH 4 Greenhouse effect coefficient × paddy field CH 4 Suppression rate [%]

[0099] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (B). Formula (B): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + (N content in test sample [%] + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%]) x farmland N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0100] If it is determined in step S305 that no fertilizer containing nitrogen has been applied, then it is determined whether the cultivated land is a paddy field or a farm field (S309).

[0101] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (C). Formula (C): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + N content in test sample [%] × paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [%] + Paddy CH 4 Emission factor [t-CH 4 / ha]÷ Test sample fertilization weight [t / ha] × Paddy field flooding period [(Monday) / 12] × CH 4 Greenhouse effect coefficient × paddy field CH 4 Suppression rate [%]

[0102] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (D). Formula (D): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + N content in test sample [%] × N in field 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0103] If it is determined in step S303 that the soil improvement material containing biochar does not contain compost, then it is determined whether or not nitrogen-containing fertilizer has been applied (S311). If it is determined that nitrogen-containing fertilizer has been applied, it is determined whether the land is cultivated (S313).

[0104] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (E). Formula (E): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%] x paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [%] + Paddy CH 4 Emission factor “t-CH 4 / ha” ÷ Test sample fertilization weight [t / ha] × Paddy field flooding period [(Monday) / 12] × CH 4 Greenhouse effect coefficient × paddy field CH 4 Suppression rate [%]

[0105] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (F). Formula (F): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%] x field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0106] If it is determined in step S311 that no fertilizer containing nitrogen has been applied, then it is determined whether the cultivated land is a paddy field or a farm field (S315).

[0107] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (G). Formula (G): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + Mizuta CH 4 Emission factor [t-CH 4 / ha]÷ Test sample fertilization weight [t / ha] × Paddy field flooding period [(Monday) / 12] × CH 4 Greenhouse effect coefficient × paddy field CH 4 Suppression rate [%]

[0108] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (H). Formula (H): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight

[0109] If it is determined in step S301 that the iron content is less than 1%, then it is determined whether or not the soil improvement material containing compost biochar contains compost (S302).

[0110] If it is determined that the soil improvement material containing biochar contains compost, it is determined whether or not a fertilizer containing nitrogen has been applied (S304).

[0111] If it is determined that fertilizer containing nitrogen has been applied, it is determined whether the cultivated land is a paddy field or a farm field (S306).

[0112] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (I). Formula (I): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2Molecular weight ÷ C molecular weight + (N content in test sample [%] + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%]) x Paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [rate]

[0113] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (J). Formula (J): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + (N content in test sample [%] + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%]) x farmland N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0114] If it is determined in step S304 that no fertilizer containing nitrogen has been applied, then it is determined whether the cultivated land is a paddy field or a farm field (S308).

[0115] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (K). Formula (K): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + N content in test sample [%] × paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [%]

[0116] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (L). Formula (L): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + N content in test sample [%] × N in field 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0117] If it is determined in step S302 that the soil improvement material containing biochar does not contain compost, then it is determined whether or not a fertilizer containing nitrogen has been applied (S310). If it is determined that a fertilizer containing nitrogen has been applied, it is determined whether the land is cultivated (S312).

[0118] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (M). Formula (M): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%] x paddy field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect coefficient × Paddy field N 2 O suppression rate [%]

[0119] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (N). Formula (N): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO2 Molecular weight ÷ C molecular weight + applied weight of nitrogen fertilizer [t / ha] ÷ applied weight of test sample [t / ha] x N content in nitrogen fertilizer [%] x field N 2 O emission factor [tN 2 O / tN]×N 2 O Greenhouse effect factor × Farmland N 2 O suppression rate [%]

[0120] If it is determined in step S311 that no fertilizer containing nitrogen has been applied, then it is determined whether the cultivated land is a paddy field or a farm field (S314).

[0121] If the cultivated land is determined to be paddy field, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (O). Formula (O): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight

[0122] If the cultivated land is determined to be farmland, the carbon dioxide reduction per ton of soil improvement material containing biochar is calculated using formula (P). Formula (P): Carbon dioxide reduction per ton of soil improvement material containing biochar = solid content before air drying [%] ÷ solid content after air drying [%] × persistent organic carbon content [%] × CO 2 Molecular weight ÷ C molecular weight

[0123] As described above, the amount of carbon dioxide reduction per ton of soil improvement materials containing biochar is calculated using a formula appropriate for each case, taking into account the type of soil improvement material containing biochar, whether or not it has been fertilized with nitrogen-containing fertilizer, and the type of cultivated land. The parameters used in each formula are as follows:

[0124] Solid content before air drying [%]: Indicates the percentage of solid content before air drying treatment as described on page 4 of FAMIC Fertilizer Analysis Methods 2018.

[0125] Solid content after air drying [%]: Indicates the percentage of solid content after air drying treatment as described on page 4 of FAMIC Fertilizer Analysis Method 2018.

[0126] Percentage of non-degradable organic carbon [%]: The carbon content obtained according to the acid detergent fiber analysis method of the feed analysis method. It can be calculated from the TOC (total carbon content) of the dried waste material.

[0127] N content in test sample [%]: Indicates the percentage of nitrogen contained in the test sample containing compost.

[0128] Nitrogen fertilizer application weight [t / ha]: Indicates the amount of nitrogen fertilizer applied per hectare.

[0129] Test sample fertilizer weight [t / ha]: indicates the weight of the test sample to be applied per hectare.

[0130] N content in nitrogen fertilizer [%]: Indicates the nitrogen content in nitrogen fertilizer.

[0131] Paddy N 2 O emission factor [tN 2 O / tN]: The weight (tons) of nitrous oxide generated when 1 ton of nitrogen fertilizer and / or nitrogen contained in compost is applied to paddy fields.

[0132] N 2 Greenhouse effect factor: N 2 The amount of O released is CO 2 The coefficient for converting the amount of released

[0133] Paddy N 2 O suppression rate [%]: By including phosphorus charcoal (biocharcoal with a porous structure that supports phosphorus and iron) in the fertilized feed, the total N generated from the paddy field can be suppressed. 2 The percentage of O suppression is shown.

[0134] Mizuta CH 4 Emission factor [t-CH 4 / ha]: indicates the weight of methane generated from 1 hectare of rice paddy.

[0135] Paddy field flooding period [(Mon) / 12]: Indicates the period when paddy fields are flooded.

[0136] CH 4 Greenhouse effect coefficient: CH 4 of CO 2 This is a coefficient used to convert the amount of emissions.

[0137] Mizuta CH 4 Suppression rate [%]: By including phosphorus carbon in fertilized feed, the total CH 4 The percentage of suppression of the amount is shown. [Industrial Applicability]

[0138] The carbon storage agriculture evaluation system according to one embodiment of the present invention can be used to promote the spread of circular industries that produce biochar by carbonizing organic matter (biomass) such as agricultural and forestry waste, waste wood, and food waste, mix the produced biochar into agricultural land to store carbon in the soil, produce agricultural products, and distribute them to the market as food products, as well as produce biochar using the biomass raw materials produced in the process. [Explanation of symbols]

[0139] 102: first server, 104: first storage, 106: second server, 108: second storage, 110: first terminal, 112: second terminal, 114: third terminal, 116: data acquisition unit, 118: data processing unit, 120: data evaluation unit, 122: point setting unit, 124: iron content determination unit, 126: fertilizer application determination unit, 128: nitrogen content determination unit, 130: cultivated land determination unit, 132: fertilizer application amount information acquisition unit, 134: calculation processing unit, 200: carbon storage agriculture promotion business operator, 202: agricultural support business operator, 204: soil improvement material producer, 206: agricultural business operator, 208: retailer, 210: consumer, DA1: first data, DA2: second data, DA3: third data

Claims

1. a data acquisition unit that reads out from the storage device first data indicating characteristics of a soil improvement material containing biochar, second data including an application amount of the soil improvement material containing biochar in agricultural land, a type and area of ​​the agricultural land, and a type and amount of fertilizer applied, and third data including a variety and a yield of a crop cultivated in the agricultural land; a data processing unit that calculates one or both of the carbon stock and greenhouse gas emission reduction amount of the agricultural land and one or both of the carbon stock and greenhouse gas emission reduction amount per cultivation of the agricultural crop using the first to third data acquired by the data acquisition unit; and a data evaluation unit that ranks the degree of environmental improvement contribution of the agricultural crop based on one or both of the values ​​of the carbon storage amount and the greenhouse gas emission reduction amount per cultivation of the agricultural crop. A carbon storage agriculture evaluation system.

2. The carbon storage agriculture evaluation system according to claim 1 , further comprising a point setting unit that assigns points to the agricultural products in order of the degree of contribution to environmental improvement.

3. The carbon storage agriculture evaluation system according to claim 1 , wherein the soil improvement material containing biochar is biochar or biochar carrying phosphorus and iron.

4. The carbon storage agriculture evaluation system according to claim 3 , wherein the soil improvement material comprising biochar further comprises compost.

5. A method for providing carbon storage agriculture evaluation information provided from a first server of a carbon storage agriculture promotion business, comprising: The first server reads out first data indicating characteristics of a soil improvement material including biochar from a first database; The first server receives, from a second server of an agricultural business operator or an agricultural support business operator, Second data including the amount of soil improvement material containing the biochar applied to the agricultural land, the type and area of ​​the agricultural land, and the type and amount of fertilizer applied; and Third data including varieties and yields of crops cultivated on the agricultural land; via telecommunications lines, the first server uses the first to third data to calculate one or both of the carbon stock and greenhouse gas emission reduction amount of the agricultural land, and one or both of the carbon stock and greenhouse gas emission reduction amount per cultivation of the agricultural crop; The first server ranks the degree of environmental improvement contribution of the agricultural crop based on information on one or both of the amount of carbon storage and the amount of greenhouse gas emission reduction per cultivation of the agricultural crop; The first server provides the information obtained by the calculation and the ranking data to the second server via a telecommunication line. The present invention relates to a method for providing carbon storage agriculture evaluation information.

6. 6. The method for providing carbon storage agriculture evaluation information according to claim 5, wherein the first server assigns points to the agricultural products in descending order of the degree of environmental improvement contribution and provides the points to the second server via a telecommunications line.

7. The method for providing carbon storage agriculture evaluation information according to claim 5 , wherein the soil improvement material containing biochar is biochar or biochar carrying phosphorus and iron.

8. The method for providing carbon storage agriculture evaluation information according to claim 7 , wherein the soil improvement material containing biochar further contains compost.

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