Greenhouse gas total emission prediction method, system and equipment and storage medium

Abstract

The invention discloses a greenhouse gas total emission prediction method, system and equipment and a storage medium, belongs to the technical field of greenhouse gas emission, and solves the problem that a method for predicting the greenhouse gas total emission of a planting and breeding coupling circulation system is lacked in the prior art. Respectively analyzing the coupling elements in the beef cattle-corn circulating production system and the total greenhouse gas emission of the coupling elements in the beef cattle-corn circulating production system; constructing a beef cattle-corn circulation production system, and defining a boundary of the beef cattle-corn circulation production system; constructing a greenhouse gas total emission function of the beef cattle-corn circulating production system; constructing an optimal coupling scene of the beef cattle-corn circulating production system; based on the constructed optimal coupling scene of the beef cattle-corn circulation production system and the greenhouse gas total emission function of the beef cattle-corn circulation production system, predicting the greenhouse gas total emission of the optimal coupling scene of the beef cattle-corn circulation production system.

Description

Technical Field

[0001] The present invention relates to the field of greenhouse gas emission technology, and in particular to a method, system, device and storage medium for predicting total greenhouse gas emissions. Background Art

[0002] Global greenhouse gas emissions have attracted much attention, and agriculture is the second largest source of greenhouse gas emissions.

[0003] In the existing technology, Chinese patent CN116562465A discloses a "method for predicting total greenhouse gas emissions from beef cattle." By establishing a prediction model based on factors affecting greenhouse gases from beef cattle, the total greenhouse gas emissions can be effectively predicted. However, this prediction method can only predict livestock and poultry emissions alone, and lacks a greenhouse gas emission prediction method for a coupled breeding and farming cycle system.

[0004] A coupled farming and animal husbandry system is an important means of reducing greenhouse gas emissions. The expansion of animal husbandry generates large amounts of greenhouse gases. Therefore, building a coupled farming and animal husbandry system is an important way to reduce greenhouse gas emissions and fully utilize waste resources, thereby reducing greenhouse gas emissions.

[0005] In the existing technology, Su Zixu published "Research on Greenhouse Gas Emissions from Beef Cattle Farming under the Ecological Cycle Model in Jilin Province". By constructing multiple coupled breeding and farming circulation systems and comparing them, this paper explains the practical significance of Jilin Province's "straw to meat" policy. However, this study only discloses the construction of multiple coupled breeding and farming circulation systems, and does not predict the total greenhouse gas emissions of the coupled breeding and farming circulation systems based on the construction of multiple coupled breeding and farming circulation systems. The predicted total greenhouse gas emissions of the coupled breeding and farming circulation systems are detected by equipment. Therefore, proposing a practical method for predicting the total greenhouse gas emissions of the coupled breeding and farming circulation systems is a technical problem that needs to be solved urgently.

[0006] In summary, the existing technology lacks a method to predict the total greenhouse gas emissions of the coupled crop-livestock cycle system. Summary of the Invention

[0007] The present invention solves the problem that the prior art lacks a method for predicting the total greenhouse gas emissions of a crop-livestock coupling cycle system.

[0008] The method for predicting total greenhouse gas emissions of the present invention comprises the following steps: Step S1, constructing a total greenhouse gas emission model of a beef cattle production system and a total greenhouse gas emission function of beef cattle; Step S2, constructing a total greenhouse gas emission model of the corn production system and a total greenhouse gas emission function of the corn; Step S3, analyzing the coupling elements in the beef cattle-corn circular production system, and analyzing the total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn; Step S4, constructing a beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and defining the boundary of the beef cattle-corn circular production system; Step S5, constructing a total greenhouse gas emission function of the beef cattle-corn circular production system based on the analyzed total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system; Step S6, constructing an optimal coupling scenario of the beef cattle-corn circular production system based on the beef cattle-corn circular production system after defining the boundaries; Step S7: predicting the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emissions function of the beef cattle-corn circular production system.

[0009] Furthermore, in one embodiment of the present invention, in step S2, the total greenhouse gas emission model of the corn production system is specifically: ; Where, is the total greenhouse gas emission model of the corn production system, The amount of open burning of straw in corn cropping systems, Open burning of straw Emission factors, The amount of emissions reduction from straw feed in corn planting systems, Straw feed Emission estimation factors, Quantity of manure purchased for corn cropping system, The amount of manure used in the recycling production system is preferred for corn farming systems. Total greenhouse gas emissions from purchased manure for corn cropping systems.

[0010] Furthermore, in one embodiment of the present invention, in step S4, the beef cattle-corn circular production system includes a corn planting system and a beef cattle breeding system, wherein the corn planting system produces grains and straw respectively, and the grains used for grain feed and the straw used for straw feed are both put into the beef cattle breeding system, and the beef cattle breeding system produces manure and urine and beef cattle respectively, and the manure and urine used to produce manure are used as fertilizer for the corn planting system.

[0011] Furthermore, in one embodiment of the present invention, in step S4, the definition of the beef cattle-corn cycle production system boundary is specifically as follows: The production cycle of the beef cattle-corn circular production system is defined as 1 year. The scale of the beef cattle breeding system and the scale of the corn planting system are set respectively, and the variable elements in the beef cattle-corn circular production system are kept in a stable state.

[0012] Furthermore, in one embodiment of the present invention, in step S5, the total greenhouse gas emission function of the beef cattle-corn cycle production system is specifically:

[0013] Where, is the total greenhouse gas emission function of the beef cattle-corn cycle production system, is the minimum value, is the maximum value, 、 、 and They are different factors of greenhouse gas emissions. and They are different elements of greenhouse gas emission reduction.

[0014] Furthermore, in one embodiment of the present invention, in step S6, the optimal coupling scenario of the beef cattle-corn cycle production system is specifically: When the structure of the scale of corn planting system and the scale of beef cattle breeding system is 1:8, it is the optimal coupling scenario of beef cattle-corn circular production system.

[0015] Furthermore, in one embodiment of the present invention, in step S7, the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn cycle production system are predicted as follows: ; Where, To predict the total greenhouse gas emissions of the optimal coupled scenario for the beef cattle-corn cycle production system, For beef cattle breeding emission, For beef cattle breeding emission, Open burning of straw in the beef cattle-corn cycle production system Emission factors, is the dimension of manure recycling in the beef cattle-corn cycle production system, The amount of straw required for the beef cattle-corn cycle production system is accumulated. For the scale of beef cattle breeding, A type of beef cattle.

[0016] The total greenhouse gas emissions prediction system of the present invention includes the following modules: The first construction module constructs the total greenhouse gas emission model of the beef cattle production system and the total greenhouse gas emission function of beef cattle; The second construction module constructs the total greenhouse gas emission model of the corn production system and the total greenhouse gas emission function of corn; The analysis module analyzes the coupling factors in the beef cattle-corn circular production system and analyzes the total greenhouse gas emissions of the coupling factors in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle production system, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn production system; Define the module, build the beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and define the boundary of the beef cattle-corn circular production system; The third building block is to construct a function for the total greenhouse gas emissions of the beef cattle-corn cycle production system based on the total greenhouse gas emissions of the coupled factors in the beef cattle-corn cycle production system: The fourth building block is to construct the optimal coupling scenario of the beef cattle-corn circular production system based on the defined boundary. The prediction module predicts the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emission function of the beef cattle-corn circular production system.

[0017] An electronic device according to the present invention comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory for storing computer programs; The processor is configured to implement the total greenhouse gas emissions prediction method described in any one of the above methods when executing the program stored in the memory.

[0018] The present invention provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, the method for predicting total greenhouse gas emissions described in any one of the above methods is implemented.

[0019] The present invention solves the problem that the existing technology lacks a method for predicting the total greenhouse gas emissions of a coupled crop-livestock cycle system. Specific beneficial effects include: 1. The present invention addresses the lack of a method for predicting total greenhouse gas emissions from a coupled crop-livestock system in the prior art. To address this technical problem, the present invention constructs a beef cattle-corn cycle production system and obtains an optimal coupling scenario for the beef cattle-corn cycle production system. Based on this optimal coupling scenario, the present invention predicts total greenhouse gas emissions, thereby resolving the prior art's lack of a method for predicting total greenhouse gas emissions from a coupled crop-livestock system. 2. The total greenhouse gas emissions prediction method described in the present invention, by constructing a total greenhouse gas emissions function for a beef cattle-corn cycle production system, can predict the total greenhouse gas emissions of the beef cattle-corn cycle production system by managing the scale of beef cattle breeding and corn planting. This also provides a model reference for optimizing total greenhouse gas emissions and promoting a coupled breeding and farming system. The total greenhouse gas emissions prediction method described in the present invention is applied to the coupled production management of circular agricultural systems. It aims to predict the total greenhouse gas emissions of the beef cattle-corn circular production system, solving the problem in the existing technology of lack of prediction of total greenhouse gas emissions under the coupled production conditions of corn planting scale and beef cattle breeding scale, that is, beef cattle breeding system and corn planting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a block diagram of the coupled production principle of beef cattle-corn cycle agriculture described in embodiment 1; Figure 2 This is a principle block diagram of the method for predicting total greenhouse gas emissions from corn according to the first embodiment; Figure 3 This is a greenhouse gas analysis diagram of the coupled elements in the beef cattle-corn cycle production system according to the first embodiment; Figure 4 This is an analysis diagram of greenhouse gas emissions from coupled factors in the beef cattle-corn cycle production system described in Implementation Method 1, when manure and urine are fully returned to the fields. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe various embodiments of the present invention in conjunction with the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] Implementation method 1: The method for predicting total greenhouse gas emissions according to this implementation method includes the following steps: Step S1, constructing a total greenhouse gas emission model of a beef cattle production system and a total greenhouse gas emission function of beef cattle; Step S2, constructing a total greenhouse gas emission model of the corn production system and a total greenhouse gas emission function of the corn; Step S3, analyzing the coupling elements in the beef cattle-corn circular production system, and analyzing the total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn; Step S4, constructing a beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and defining the boundary of the beef cattle-corn circular production system; Step S5, constructing a total greenhouse gas emission function of the beef cattle-corn circular production system based on the analyzed total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system; Step S6, constructing an optimal coupling scenario of the beef cattle-corn circular production system based on the beef cattle-corn circular production system after defining the boundaries; Step S7: predicting the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emissions function of the beef cattle-corn circular production system.

[0023] In this embodiment, in step S2, the total greenhouse gas emission model of the corn production system is specifically: ; Where, is the total greenhouse gas emission model of the corn production system, The amount of open burning of straw in maize production systems, Open burning of straw Emission factors, The amount of emissions reduction from straw feed in corn production systems, For straw feed Emission estimation factors, Quantity of manure purchased for corn production systems, The amount of manure used in the maize production system is preferred for recycling production systems. Total greenhouse gas emissions from purchased manure for corn production systems.

[0024] In this embodiment, in step S4, the beef cattle-corn circular production system includes a corn planting system and a beef cattle breeding system, wherein the corn planting system produces grains and straw respectively, and the grains used for grain feed and the straw used for straw feed are both put into the beef cattle breeding system, and the beef cattle breeding system produces manure and urine and beef cattle respectively, and the manure and urine used to produce manure are used as fertilizer for the corn planting system.

[0025] In this embodiment, in step S4, the boundary of the beef cattle-corn cycle production system is defined as follows: The production cycle of the beef cattle-corn circular production system is defined as 1 year. The beef cattle breeding scale and corn planting scale are set respectively, and the variable elements in the beef cattle-corn circular production system are kept in a stable state.

[0026] In this embodiment, if Figure 3 As shown, in step S5, the total greenhouse gas emission function of the beef cattle-corn cycle production system is specifically:

[0027] Where, is the total greenhouse gas emission function of the beef cattle-corn cycle production system, is the minimum value, is the maximum value, 、 、 and They are different factors of greenhouse gas emissions. and They are different elements of greenhouse gas emission reduction.

[0028] In this embodiment, in step S6, the optimal coupling scenario of the beef cattle-corn cycle production system is specifically: When the structure of corn planting scale and beef cattle breeding scale is 1:8, it is the optimal coupling scenario for the beef cattle-corn circular production system.

[0029] In this embodiment, in step S7, the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn cycle production system are predicted as follows: ; Where, To predict the total greenhouse gas emissions of the optimal coupled scenario for the beef cattle-corn cycle production system, Beef cattle farming emission, For beef cattle breeding emission, Open burning of straw in the beef cattle-corn cycle production system Emission factors, The amount of manure recycled in the beef cattle-corn cycle production system, The amount of straw required for the beef cattle-corn cycle production system is accumulated. For the scale of beef cattle breeding, A type of beef cattle.

[0030] In the existing technology, there is a lack of methods to predict the total greenhouse gas emissions of the coupled crop-livestock cycle system.

[0031] In order to solve the above technical problems, this embodiment proposes a method for predicting total greenhouse gas emissions based on an established coupled cyclic system, including the following steps: Step S1: Analyze the greenhouse gas emission factors of beef cattle breeding system based on (Methane) emissions and (nitrous oxide) emissions to build a total greenhouse gas emission model for beef cattle production systems, and a total greenhouse gas emission function for beef cattle based on the scale of beef cattle farming; Calculating total greenhouse gas emissions from a beef cattle farming system involves variables such as cattle scale control, feed quality optimization, and feeding environment. Calculating total greenhouse gas emissions from a beef cattle farming system also involves factors such as net energy for growth, net energy for maintenance, net energy for gestation, net energy for lactation, and the ratio of net energy for maintenance to digestible energy consumed in the beef cattle diet.

[0032] Total greenhouse gas emissions are Emissions and Emission composition, Emissions are generated by the total energy produced by beef cattle and Emission factor composition, Mainly discharged from the digestive system. Emissions are determined by nitrogen uptake and retention, nitrogen excretion rates, and Emission factor composition, Mainly from fecal discharge.

[0033] The total greenhouse gas emissions model for the beef cattle production system is as follows: ; Where, Modeling total greenhouse gas emissions from beef cattle production systems, For beef cattle breeding Emissions, mainly from the digestive system of beef cattle, For beef cattle breeding Emissions mainly come from cattle feces. For the scale of beef cattle breeding, Types of beef cattle: fattening cattle, lactating cattle, and pregnant cattle.

[0034] ; Where, Total energy types for different beef cattle species, for conversion factor, is the number of days in a year, for Energy content, including total energy types of different beef cattle species The formula is: ; Where, To maintain net energy, Net energy for lactation, Net energy for pregnancy, Net energy for growth, The ratio of net energy provided for maintenance to digestible energy consumed by beef cattle in a diet. The ratio of net energy for growth to digestible energy consumed in the diet of beef cattle. It is the ratio of digestible energy to total energy of beef cattle.

[0035] The net energy of growth The formula is: ; Where, is the weight of beef cattle, is the average weight of beef cattle in the middle period, is the average daily gain of beef cattle, is the beef cattle conversion coefficient.

[0036] The net energy of maintenance The formula is: ; Where, is the default value, is the average weight of beef cattle.

[0037] The net energy of pregnancy The formula is: ; Where, is the pregnancy coefficient.

[0038] The net energy of lactation The formula is: ; Where, For milk production, For the milk fat percentage.

[0039] The ratio of net energy for maintenance to digestible energy consumed in the beef cattle diet The formula is: .

[0040] The ratio of net energy for growth to digestible energy consumed in the beef cattle diet The formula is: .

[0041] Establish beef cattle breeding according to the scale and breeding environment of beef cattle emission , expressed as follows: ; Where, For the breeding environment, is the annual nitrogen excretion rate of beef cattle, is the proportion of total annual nitrogen excretion of beef cattle species under feeding conditions, For breeding environment in Emission factors for direct emissions, For breeding environment In beef cattle, manure nitrogen is managed through (ammonia) and The proportion of (nitrogen oxides) volatilization, Produced from atmospheric nitrogen deposition in soil and water Emission factors for emissions, is the conversion coefficient Emissions converted to Emission model.

[0042] Annual nitrogen excretion rate of the beef cattle species mentioned The formula is: ; Where, is the daily nitrogen consumption of beef cattle, Daily nitrogen retention for beef cattle.

[0043] The amount of nitrogen consumed daily by beef cattle The formula is: ; Where, is the total energy intake of beef cattle, is the percentage of crude protein in the diet.

[0044] The amount of nitrogen retained by beef cattle per day The formula is: .

[0045] Step S2, analyzing greenhouse gas emission factors of the corn planting system, constructing a total greenhouse gas emission model of the corn production system based on the production input and output process, and constructing a total greenhouse gas emission function of corn based on the corn planting scale; like Figure 2 As shown in Figure 2, the variables involved in calculating total greenhouse gas emissions from a corn cultivation system include: corn planting scale, corn kernels, corn kernel feed conversion, manure input, purchased fertilizer input, straw burning, and straw feed conversion. Manure input and purchased fertilizer input are coupled / substitutable resources, while straw burning and straw feed conversion are coupled / substitutable resources. Straw burning and purchased fertilizer input are factors in greenhouse gas emissions.

[0046] The total greenhouse gas emissions model of the corn production system is specifically as follows: ; ; ; Where, is the total greenhouse gas emission model of the corn production system, The amount of open burning of straw in corn cropping systems, Open burning of straw Emission factors, The amount of emissions reduction from straw feed in corn planting systems, For straw feed Emission estimation factors, Quantity of manure purchased for corn cropping system, The amount of manure used in the recycling production system is preferred for corn farming systems. Total greenhouse gas emissions from purchased manure for corn cropping systems, The total amount of straw produced for the corn planting system, The total amount of manure required for the corn cropping system.

[0047] Step S3, analyzing the coupling elements in the beef cattle-corn circular production system, and analyzing the total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn; In the corn planting system, manure input and straw feed are coupling elements in the beef cattle-corn circular production system and are also factors in greenhouse gas emission reduction. In addition, purchased fertilizer input, straw burning, direct excretion of manure and urine, and purchased feed are factors that constitute greenhouse gas emissions.

[0048] Step S4, constructing a beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and defining the boundary of the beef cattle-corn circular production system; In the existing technology, Su Zixu disclosed the "Research on Greenhouse Gas Emissions from Beef Cattle Farming under the Ecological Cycle Model in Jilin Province". The study constructed a planting and breeding coupling circulation system, but the planting and breeding coupling circulation system requires processing the planted feed grains before putting them into the beef cattle breeding system. If the planting and breeding coupling circulation system constructed by the study is directly applied to the beef cattle-corn circulation production system described in this embodiment, the grains and straws produced by the corn planting system are processed separately and then put into the beef cattle breeding system, it will undoubtedly bring a burden to the beef cattle-corn circulation production system. In the process of processing the grains and straws produced by the corn planting system, not only will the grain feed and straw feed be wasted, but the operation of the machine will also generate greenhouse gas emissions, which completely violates the basic principle that "the planting and breeding coupling circulation system is an important means to reduce greenhouse gas emissions and also to reduce greenhouse gas emissions."

[0049] In order to solve the above technical problems, this embodiment constructs a breeding and farming coupling circulation system suitable for beef cattle breeding system and corn planting system, which is defined as beef cattle-corn circulation production system. Figure 1 As shown, the beef cattle-corn circular production system includes two parts: a corn planting system and a beef cattle breeding system. The corn planting system produces grains and straw respectively. The grains are used for grain feed, and the straw is used for straw feed. Both the grain feed and the straw feed are input into the beef cattle breeding system. The beef cattle breeding system produces manure and beef cattle respectively. The manure and urine are used for manure input as fertilizer for the corn planting system.

[0050] In the beef cattle-corn circular production system, the corn planting system produces straw for straw burning, and the beef cattle breeding system produces manure and urine for disposal, both of which contribute to greenhouse gas emissions. Grains and beef cattle are not included in greenhouse gas emissions.

[0051] Defining the boundaries of a beef-corn circular production system involves defining a one-year production cycle. In addition to the established beef cattle and corn production volumes, other factors are considered: feed quality, rearing environment, and the stability of the variable elements within the beef-corn circular production system. Based on data from Northeast China, for example, Simmental cattle have a 12-month breeding cycle, corn is grown annually, and straw yield is 7.32 tons per hectare. Greenhouse gas emissions are estimated based on the use of straw for feed or open burning.

[0052] Step S5: Based on the analyzed total greenhouse gas emissions of the coupling elements in the beef cattle-corn cycle production system, a total greenhouse gas emission function of the beef cattle-corn cycle production system is constructed: The total greenhouse gas emission function of the beef cattle-corn cycle production system is specifically:

[0053] Where, is the total greenhouse gas emission function of the beef cattle-corn cycle production system, This is the greenhouse gas emissions component of the beef-corn cycle production system. To reduce greenhouse gas emissions in the beef-corn cycle production system, is the minimum value, The greenhouse gas emissions from the beef-corn cycle production system are the maximum value. Greenhouse gas emission factors include 、 、 and , greenhouse gas emissions reduction in the beef cattle-corn cycle production system Greenhouse gas emission reduction factors include and .

[0054] Step S6, constructing an optimal coupling scenario of the beef cattle-corn circular production system based on the beef cattle-corn circular production system after defining the boundaries; Based on the scale of corn planting and beef cattle breeding, as well as the coupling elements of the beef cattle-corn circular production system after defining the boundaries, the optimal coupling scenario of the beef cattle-corn circular production system is constructed, such as Figure 4 As shown, its basic principle is: the input and output between the corn planting system and the beef cattle breeding system in the beef cattle-corn cycle production system should follow the principle of self-sufficiency as much as possible, satisfying (Straw feed), straw feed can be purchased from outside, reducing external inputs in the beef cattle-corn circular production system, that is, there is no external fertilizer purchase, no direct excretion of manure and urine, and no open-air burning of straw, and manure and urine are fully recycled.

[0055] In the optimal coupling scenario of the beef cattle-corn circular production system, the coupling structure of corn planting scale and beef cattle breeding scale is 1:8. At this time, the manure and urine produced by the beef cattle breeding system are fully utilized by the corn planting system.

[0056] Step S7: predicting the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emissions function of the beef cattle-corn circular production system.

[0057] The total greenhouse gas emissions of the optimal coupling scenario of the predicted beef cattle-corn cycle production system are specifically: ; Where, To predict the total greenhouse gas emissions of the optimal coupled scenario for the beef cattle-corn cycle production system, Purchasing straw feed for the beef cattle-corn circular production system is equivalent to greenhouse gas emission reduction after being used within the beef cattle-corn circular production system.

[0058] The The formula is: ; Where, is the amount of straw purchased from within and outside the beef cattle-corn cycle production system. Open burning of straw in the beef cattle-corn cycle production system Emission factors.

[0059] Based on the full recycling of manure and urine, in the optimal coupling scenario of the beef cattle-corn cycle production system, the ratio of corn planting scale to beef cattle breeding scale is constructed to construct the beef cattle straw feed balance formula, which is as follows: ; Where, is the amount of straw feed supplied and purchased in the beef cattle-corn circular production system, is the amount of straw feed supplied in the beef cattle-corn circular production system, Accumulate the required amount of straw for the beef cattle-corn circular production system.

[0060] So, .

[0061] To summarize, this embodiment constructs a beef cattle-corn circular production system suitable for corn planting systems and beef cattle breeding systems, and based on the system obtains the optimal coupling scenario of the beef cattle-corn circular production system of the beef cattle breeding system, and predicts the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system, thereby solving the problem that the existing technology lacks a method for predicting the total greenhouse gas emissions of the planting and breeding coupling cycle system.

[0062] Implementation 2: The total greenhouse gas emissions prediction system described in this implementation includes the following modules: The first construction module constructs the total greenhouse gas emission model of the beef cattle production system and the total greenhouse gas emission function of beef cattle; The second construction module constructs the total greenhouse gas emission model of the corn production system and the total greenhouse gas emission function of corn; The analysis module analyzes the coupling factors in the beef cattle-corn circular production system and analyzes the total greenhouse gas emissions of the coupling factors in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle production system, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn production system; Define the module, build the beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and define the boundary of the beef cattle-corn circular production system; The third building block is to construct a function for the total greenhouse gas emissions of the beef cattle-corn cycle production system based on the total greenhouse gas emissions of the coupled factors in the beef cattle-corn cycle production system: The fourth building block is to construct the optimal coupling scenario of the beef cattle-corn circular production system based on the defined boundary. The prediction module predicts the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emission function of the beef cattle-corn circular production system.

[0063] Embodiment 3: An electronic device described in this embodiment includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; Memory for storing computer programs; The processor is configured to implement the method for predicting total greenhouse gas emissions described in the first embodiment when executing the program stored in the memory.

[0064] Implementation method 4: This implementation method describes a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for predicting total greenhouse gas emissions described in implementation method 1 is implemented.

[0065] The above is a detailed introduction to the total greenhouse gas emissions prediction method, system, device and storage medium proposed in the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for predicting total greenhouse gas emissions, characterized in that: The following steps are involved: Step S1, constructing a total greenhouse gas emission model of a beef cattle production system and a total greenhouse gas emission function of beef cattle; Step S2, constructing a total greenhouse gas emission model of the corn production system and a total greenhouse gas emission function of the corn; Step S3, analyzing the coupling elements in the beef cattle-corn circular production system, and analyzing the total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn; Step S4, constructing a beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and defining the boundary of the beef cattle-corn circular production system; Step S5, constructing a total greenhouse gas emission function of the beef cattle-corn circular production system based on the analyzed total greenhouse gas emissions of the coupling elements in the beef cattle-corn circular production system; Step S6, constructing an optimal coupling scenario of the beef cattle-corn circular production system based on the beef cattle-corn circular production system after defining the boundaries; Step S7: predicting the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emissions function of the beef cattle-corn circular production system.

2. The method for predicting total greenhouse gas emissions according to claim 1, characterized in that: In step S2, the total greenhouse gas emission model of the corn production system is specifically: ； Where, is the total greenhouse gas emission model of the corn production system, The amount of open burning of straw in corn cropping systems, Open burning of straw Emission factors, The amount of emissions reduction from straw feed in corn planting systems, For straw feed Emission estimation factors, Quantity of manure purchased for corn cropping system, The amount of manure used in the recycling production system is preferred for corn farming systems. Total greenhouse gas emissions from purchased manure for corn cropping systems.

3. The method for predicting total greenhouse gas emissions according to claim 1, wherein: In step S4, the beef cattle-corn circular production system includes a corn planting system and a beef cattle breeding system, wherein the corn planting system produces grains and straw respectively, and the grains used for grain feed and the straw used for straw feed are both put into the beef cattle breeding system, and the beef cattle breeding system produces manure and urine and beef cattle respectively, and the manure and urine used to produce manure are used as fertilizer for the corn planting system.

4. The method for predicting total greenhouse gas emissions according to claim 1, wherein: In step S4, the boundary of the beef cattle-corn cycle production system is defined as follows: The production cycle of the beef cattle-corn circular production system is defined as 1 year. The scale of the beef cattle breeding system and the scale of the corn planting system are set respectively, and the variable elements in the beef cattle-corn circular production system are kept in a stable state.

5. The method for predicting total greenhouse gas emissions according to claim 1, wherein: In step S5, the total greenhouse gas emission function of the beef cattle-corn cycle production system is specifically: Where, is the total greenhouse gas emission function of the beef cattle-corn cycle production system, is the minimum value, is the maximum value, 、 、 and They are different factors of greenhouse gas emissions. and They are different elements of greenhouse gas emission reduction.

6. The method for predicting total greenhouse gas emissions according to claim 1, wherein: In step S6, the optimal coupling scenario of the beef cattle-corn cycle production system is specifically: When the structure of the scale of corn planting system and the scale of beef cattle breeding system is 1:8, it is the optimal coupling scenario of beef cattle-corn circular production system.

7. The method for predicting total greenhouse gas emissions according to claim 1, wherein: In step S7, the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn cycle production system are predicted as follows: ； Where, To predict the total greenhouse gas emissions of the optimal coupled scenario for the beef cattle-corn cycle production system, For beef cattle breeding emission, For beef cattle breeding emission, Open burning of straw in the beef cattle-corn cycle production system Emission factors, is the dimension of manure recycling in the beef cattle-corn cycle production system, The amount of straw required for the beef cattle-corn cycle production system is accumulated. For the scale of beef cattle breeding, A type of beef cattle.

8. A greenhouse gas emission prediction system, characterized in that: Includes the following modules: The first construction module constructs the total greenhouse gas emission model of the beef cattle production system and the total greenhouse gas emission function of beef cattle; The second construction module constructs the total greenhouse gas emission model of the corn production system and the total greenhouse gas emission function of corn; The analysis module analyzes the coupling factors in the beef cattle-corn circular production system and analyzes the total greenhouse gas emissions of the coupling factors in the beef cattle-corn circular production system based on the constructed total greenhouse gas emissions model of the beef cattle production system, the total greenhouse gas emissions function of the beef cattle production system, the total greenhouse gas emissions model of the corn production system, and the total greenhouse gas emissions function of the corn production system; Define the module, build the beef cattle-corn circular production system based on the analyzed coupling elements in the beef cattle-corn circular production system, and define the boundary of the beef cattle-corn circular production system; The third building block is to construct a function for the total greenhouse gas emissions of the beef cattle-corn cycle production system based on the total greenhouse gas emissions of the coupled factors in the beef cattle-corn cycle production system: The fourth building block is to construct the optimal coupling scenario of the beef cattle-corn circular production system based on the defined boundary. The prediction module predicts the total greenhouse gas emissions of the optimal coupling scenario of the beef cattle-corn circular production system based on the constructed optimal coupling scenario of the beef cattle-corn circular production system and the total greenhouse gas emission function of the beef cattle-corn circular production system.

9. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory for storing computer programs; The processor is configured to implement the method for predicting total greenhouse gas emissions according to any one of claims 1 to 7 when executing a program stored in the memory.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for predicting total greenhouse gas emissions according to any one of claims 1 to 7 is implemented.

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