Method and system for spatial optimization configuration of carbon, nitrogen and phosphorus synergistic emission reduction measures in farmland
By identifying and optimizing fertilization and water-saving irrigation patterns in areas where carbon, nitrogen, and phosphorus emissions are reduced in farmland, the problems of soil compaction, water waste, and greenhouse gas emissions in rice cultivation have been solved, achieving the effects of water conservation and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
- Filing Date
- 2026-01-28
- Publication Date
- 2026-06-19
AI Technical Summary
The current rice cultivation model of excessive watering and fertilization leads to soil compaction, water waste, increased greenhouse gas emissions, eutrophication of water bodies, and risks to the quality and safety of agricultural products, while also incurring high economic costs.
By identifying the optimal fertilization measures and water-saving irrigation patterns for carbon, nitrogen, and phosphorus emission reduction in each farmland area, and combining GIS spatial analysis technology, the optimal configuration of synergistic carbon, nitrogen, and phosphorus emission reduction measures for farmland is optimized, including nitrogen fertilizer application, controlled-release fertilizer, and water-saving irrigation, resulting in spatial optimization configuration results.
It can effectively alleviate water shortages, control non-point source pollution, reduce greenhouse gas emissions, improve soil fertility, reduce planting costs, and ensure the quality and safety of agricultural products.
Smart Images
Figure CN122242829A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the fields of agricultural non-point source pollution control, greenhouse gas emission reduction, and farmland water and fertilizer management, and in particular to a spatial optimization method and system for the coordinated reduction of carbon, nitrogen, and phosphorus emissions in farmland. Background Technology
[0002] Currently, rice cultivation mainly relies on the "large-scale irrigation and fertilization" model. This model is characterized by large amounts of fertilizer, unbalanced proportions, and low fertilizer utilization. Although it can achieve a certain increase in yield in the short term, it will cause many prominent problems: From an ecological perspective, long-term flood irrigation not only wastes a lot of water resources, but also reduces soil aeration and destroys soil aggregate structure, leading to soil compaction and shallow topsoil. At the same time, the anaerobic environment will promote the production of greenhouse gases such as methane and release harmful substances such as nitrite, polluting groundwater. Excessive chemical fertilizers flow into surrounding water bodies with field drainage, which can easily cause eutrophication, damage aquatic ecosystems, and also cause soil nutrient imbalance, acidification, and salinization, reducing soil microbial activity and overall fertility. It will also kill beneficial organisms in rice fields and weaken biodiversity. From a crop growth perspective, excessive watering and fertilization can cause rice plants to grow excessively tall and thin, significantly reducing their resistance to lodging and pests. Furthermore, the root system suffers from poor development and insufficient vitality due to prolonged oxygen deficiency, making it prone to premature aging later in the season. Excessive nitrogen fertilizer can also lead to delayed maturity and reduced grain filling rate and thousand-grain weight, while inhibiting the absorption of micronutrients such as potassium and silicon, resulting in an increase in empty grains and severely impacting rice quality. From an economic and safety perspective, this model significantly increases planting costs such as water, fertilizer, and pesticide expenses. Low fertilizer absorption and utilization rates lead to resource waste, and excessive fertilization and additional pesticide use increase the risk of nitrate and pesticide residues in rice, threatening the quality and safety of agricultural products and their market competitiveness.
[0003] Compared to conventional fertilization, optimized fertilization improves fertilizer utilization by enhancing soil physicochemical properties, increasing soil fertility, and promoting crop absorption, thereby increasing yields while reducing nitrogen loss. Common optimized fertilization measures include nitrogen fertilizer application in stages, straw return to the field, green manure return to the field, controlled-release fertilizer, reduced-volume fertilization, formula fertilization, and combined organic and inorganic fertilization—seven methods in total. Different mechanisms of action lead to variations in the overall environmental benefits of these measures. Water-saving irrigation, while ensuring stable and increased rice yields, effectively alleviates water shortages and controls non-point source pollution. It has also been proven to help control greenhouse gas emissions from paddy fields and reduce pest and disease risks. Shallow Wet Irrigation (SWI), Awheat Drying (AWD), Controlled Irrigation (CI), and Rainwater Harvesting (RGI) are four common water-saving irrigation methods, and their overall environmental benefits also vary. Furthermore, many fertilization and irrigation measures have a synergistic effect in reducing nitrogen and phosphorus loss and mitigating greenhouse gas emissions. For example, water-saving irrigation can reduce nitrogen and phosphorus loss by decreasing runoff and also significantly reduce methane (CH4) emissions from paddy fields. Optimized fertilization measures, such as controlled-release fertilizers, can reduce nitrogen and phosphorus loss through surface runoff while also inhibiting or mitigating nitrous oxide (N2O) emissions. Therefore, analyzing and optimizing synergistic carbon, nitrogen, and phosphorus emission reduction measures, such as fertilization and water-saving irrigation patterns, has important practical guiding significance for controlling non-point source pollution in farmland and even for food security. Summary of the Invention
[0004] The purpose of this invention is to overcome the above-mentioned problems in the prior art and to provide a spatial optimization configuration method and system for synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland.
[0005] To achieve the above objectives, the technical solution of the present invention is:
[0006] In a first aspect, the present invention proposes a spatial optimization configuration method for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland, comprising:
[0007] S1. Identify the optimal fertilization measures and optimal water-saving irrigation modes for carbon, nitrogen and phosphorus emission reduction zones in each farmland.
[0008] S2. Integrate the optimal fertilization measures and optimal water-saving irrigation modes in each farmland carbon, nitrogen, and phosphorus emission reduction area to form the spatial optimization configuration result of farmland carbon, nitrogen, and phosphorus emission reduction measures.
[0009] The optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone are determined based on the soil, topography, climate, fertilization status, livestock and poultry farming conditions, and target benefits of each farmland carbon, nitrogen, and phosphorus emission reduction zone.
[0010] The optimal water-saving irrigation model for each farmland carbon, nitrogen, and phosphorus emission reduction zone is determined based on the soil, topography, climate, and target benefit identification of each farmland carbon, nitrogen, and phosphorus emission reduction zone.
[0011] The optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone were identified and determined based on the following strategy:
[0012] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer.
[0013] If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted.
[0014] If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted.
[0015] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted.
[0016] If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted.
[0017] If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
[0018] The optimal water-saving irrigation mode for each farmland carbon, nitrogen, and phosphorus emission reduction zone was identified and determined based on the following strategy:
[0019] If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted.
[0020] If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted.
[0021] If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted:
[0022] Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0023] The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0024] If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted.
[0025] If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
[0026] Secondly, this invention proposes a spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland, including a fertilization measure optimization module, a water-saving irrigation mode optimization module and an information integration module.
[0027] The fertilization optimization module is used to identify the optimal fertilization measures for each farmland carbon, nitrogen and phosphorus emission reduction zone.
[0028] The water-saving irrigation mode optimization module is used to identify the optimal water-saving irrigation mode for each farmland carbon, nitrogen and phosphorus emission reduction area.
[0029] The information integration module is used to integrate the optimal fertilization measures and optimal water-saving irrigation modes of each farmland carbon, nitrogen and phosphorus emission reduction area to form the spatial optimization configuration result of farmland carbon, nitrogen and phosphorus emission reduction measures.
[0030] The fertilization optimization module identifies the optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on soil, topography, climate, fertilization status, livestock and poultry breeding conditions, and target benefits.
[0031] The water-saving irrigation mode optimization module identifies the optimal water-saving irrigation mode for each farmland's carbon, nitrogen, and phosphorus emission reduction area based on soil, topography, climate, and target benefits.
[0032] The fertilization optimization module identifies the optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on the following strategy:
[0033] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer.
[0034] If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted.
[0035] If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted.
[0036] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted.
[0037] If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted.
[0038] If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
[0039] The water-saving irrigation mode optimization module identifies the optimal water-saving irrigation mode for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on the following strategy:
[0040] If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted.
[0041] If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted.
[0042] If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted:
[0043] Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0044] The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0045] If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted.
[0046] If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
[0047] Thirdly, the present invention proposes a spatial optimization configuration device for synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland, including a processor and a memory;
[0048] The memory is used to store a database of potential farmland carbon, nitrogen and phosphorus synergistic emission reduction measures, regional environmental background data and target benefit indicators, and computer program code, and transmits them to the processor;
[0049] The processor is used to execute the aforementioned spatial optimization configuration method for the coordinated reduction of carbon, nitrogen, and phosphorus emissions in farmland according to the instructions in the computer program code.
[0050] Fourthly, the present invention provides a computer storage medium on which a computer program is stored;
[0051] When the computer program is executed by the processor, it implements the steps of the aforementioned spatial optimization configuration method for the coordinated emission reduction measures of carbon, nitrogen and phosphorus in farmland.
[0052] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0053] The present invention proposes a spatial optimization configuration method for synergistic carbon, nitrogen, and phosphorus emission reduction measures in farmland. By constructing a suitability identification index system for farmland fertilization measures and a water-saving irrigation mode identification index system, and combining them with specific emission reduction measure identification strategies, the method optimizes fertilization measures and water-saving irrigation modes in different farmland carbon, nitrogen, and phosphorus emission reduction areas. This method can effectively alleviate water shortages and control non-point source pollution. Attached Figure Description
[0054] Figure 1 This is a schematic diagram of the overall concept of the present invention.
[0055] Figure 2 This is a spatial distribution map of the fertilization measures obtained in Example 1.
[0056] Figure 3 This is a spatial distribution map of the water-saving irrigation model obtained in Example 1.
[0057] Figure 4 This is a schematic diagram of the system described in Example 2.
[0058] Figure 5 This is a schematic diagram of the device described in Embodiment 3. Detailed Implementation
[0059] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0060] Example 1:
[0061] This embodiment focuses on paddy fields in a certain region of my country, implementing the spatial optimization configuration method for the synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland as described in this invention. Figure 1 As shown, the method includes the following steps:
[0062] S1: Identify the optimal fertilization measures and optimal water-saving irrigation patterns for each farmland carbon, nitrogen, and phosphorus emission reduction zone. The optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone are determined based on soil, topography, climate, fertilization status, livestock and poultry farming conditions, and target benefits, specifically including:
[0063] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer.
[0064] If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted.
[0065] If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted.
[0066] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted.
[0067] If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted.
[0068] If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
[0069] The optimal water-saving irrigation model for each farmland carbon, nitrogen, and phosphorus emission reduction zone was determined based on soil, topography, climate, and target benefit identification, specifically including:
[0070] If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted.
[0071] If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted.
[0072] If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted:
[0073] Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0074] The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0075] If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted.
[0076] If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
[0077] Among the indicators involved in the aforementioned fertilization measures and water-saving irrigation pattern identification strategies,
[0078] Soil texture indicators are based on the percentage of sand (%), silt (%), and clay (%), and are obtained according to the soil texture triangular classification diagram.
[0079] Soil fertility index is calculated based on soil organic carbon (%). A value <1 indicates low fertility, 1-2 indicates medium fertility, and >2 indicates high fertility. This index can also be calculated based on any one of the following: total nitrogen (%), available nitrogen (ppm), available phosphorus (ppm), and available potassium (ppm), or a combination of these indices.
[0080] Climate indicators are determined by annual rainfall (mm). Rainfall > 800 mm is a humid climate, 400-800 mm is a semi-humid climate, 200-400 mm is a semi-arid climate, and < 200 mm is an arid climate.
[0081] The topographic indicators are based on the land use / cover classification system: slope ≤ 6° is plain, 6° < slope ≤ 15° is hilly, 15° < slope < 25° is mountainous, and slope > 25° is steep slope.
[0082] The fertilization status index is obtained by comparing the amount of fertilizer applied in the area with the standard amount of fertilizer applied. If the amount of fertilizer applied in the area is greater than the standard amount of fertilizer applied, it is considered an area of excessive fertilization.
[0083] S2: Using GIS spatial analysis technology, the optimal fertilization measures and optimal water-saving irrigation patterns for carbon, nitrogen, and phosphorus emission reduction areas in various farmlands are integrated to create a map like... Figure 1 The spatial distribution map of fertilization measures shown, and as follows Figure 2 The spatial distribution map of water-saving irrigation patterns shown represents the spatial optimization configuration of carbon, nitrogen, and phosphorus emission reduction measures in farmland.
[0084] from Figure 2 and Figure 3In terms of fertilization methods, delayed nitrogen fertilization, slow-release fertilizers, and formula fertilization are the most suitable, followed by straw return to the field, green manure return to the field, reduced fertilization, and combined application of organic and inorganic fertilizers. Regarding water-saving irrigation patterns, shallow wet irrigation is the most widespread, followed by controlled irrigation and intermittent irrigation.
[0085] Example 2:
[0086] like Figure 4 As shown, the spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland includes a fertilization measure optimization module, a water-saving irrigation mode optimization module, and an information integration module.
[0087] The fertilization optimization module is used to identify the optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on its soil, topography, climate, fertilization status, livestock and poultry farming conditions, and target benefits. Specific strategies include:
[0088] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer.
[0089] If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted.
[0090] If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted.
[0091] If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted.
[0092] If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted.
[0093] If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
[0094] The water-saving irrigation mode optimization module is used to identify the optimal water-saving irrigation mode for each farmland nitrogen and phosphorus emission reduction management area based on its soil, topography, climate, and target benefits. Specific strategies include:
[0095] If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted.
[0096] If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted.
[0097] If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted:
[0098] Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0099] The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production.
[0100] If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted.
[0101] If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
[0102] The information integration module is used to integrate the optimal fertilization measures and optimal water-saving irrigation mode information of each farmland carbon, nitrogen and phosphorus emission reduction area using GIS spatial analysis technology, and draw a spatial distribution map of the application of farmland carbon, nitrogen and phosphorus emission reduction measures, that is, the spatial optimization configuration result of farmland carbon, nitrogen and phosphorus emission reduction measures.
[0103] Example 3:
[0104] like Figure 5 As shown, a spatial optimization configuration device for synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland includes a processor and a memory;
[0105] The memory is used to store a database of potential farmland carbon, nitrogen and phosphorus synergistic emission reduction measures, regional environmental background data and target benefit indicators, and computer program code, and transmits them to the processor. The computer program code encodes a method for identifying the suitability of farmland carbon, nitrogen and phosphorus synergistic emission reduction measures and screening indicators for farmland carbon, nitrogen and phosphorus synergistic emission reduction measures. For details of the specific indicators and identification process, please refer to Example 1.
[0106] The processor is used to execute the spatial optimization configuration method for farmland nitrogen and phosphorus emission reduction management measures as described in Example 1, according to the instructions in the computer program code.
[0107] Example 4:
[0108] A computer storage medium on which computer programs are stored;
[0109] When the computer program is executed by the processor, it implements the steps of the spatial optimization configuration method for the synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland as described in Example 1.
Claims
1. A spatial optimization method for the coordinated emission reduction of carbon, nitrogen, and phosphorus in farmland, characterized in that, The method includes: S1. Identify the optimal fertilization measures and optimal water-saving irrigation modes for carbon, nitrogen and phosphorus emission reduction zones in each farmland. S2. Integrate the optimal fertilization measures and optimal water-saving irrigation modes in each farmland carbon, nitrogen, and phosphorus emission reduction area to form the spatial optimization configuration result of farmland carbon, nitrogen, and phosphorus emission reduction measures.
2. The spatial optimization configuration method for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 1, characterized in that, The optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone are determined based on the soil, topography, climate, fertilization status, livestock and poultry farming conditions, and target benefits of each farmland carbon, nitrogen, and phosphorus emission reduction zone. The optimal water-saving irrigation model for each farmland carbon, nitrogen, and phosphorus emission reduction zone is determined based on the soil, topography, climate, and target benefit identification of each farmland carbon, nitrogen, and phosphorus emission reduction zone.
3. The spatial optimization configuration method for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 2, characterized in that, The optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone were identified and determined based on the following strategy: If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer. If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted. If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted. If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted. If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted. If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
4. The spatial optimization configuration method for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 2, characterized in that, The optimal water-saving irrigation mode for each farmland carbon, nitrogen, and phosphorus emission reduction zone was identified and determined based on the following strategy: If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted. If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted. If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted: Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production. The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production. If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted. If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
5. A spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland, characterized in that, The system includes a fertilization optimization module, a water-saving irrigation mode optimization module, and an information integration module. The fertilization optimization module is used to identify the optimal fertilization measures for each farmland carbon, nitrogen and phosphorus emission reduction zone. The water-saving irrigation mode optimization module is used to identify the optimal water-saving irrigation mode for each farmland carbon, nitrogen and phosphorus emission reduction area. The information integration module is used to integrate the optimal fertilization measures and optimal water-saving irrigation modes of each farmland carbon, nitrogen and phosphorus emission reduction area to form the spatial optimization configuration result of farmland carbon, nitrogen and phosphorus emission reduction measures.
6. The spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 5, characterized in that, The fertilization optimization module identifies the optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on soil, topography, climate, fertilization status, livestock and poultry breeding conditions, and target benefits. The water-saving irrigation mode optimization module identifies the optimal water-saving irrigation mode for each farmland's carbon, nitrogen, and phosphorus emission reduction area based on soil, topography, climate, and target benefits.
7. The spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 6, characterized in that, The fertilization optimization module identifies the optimal fertilization measures for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on the following strategy: If the carbon, nitrogen, and phosphorus emission reduction area of farmland is an area of excessive fertilization, and the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency improvement, and yield increase, then nitrogen fertilizer should be applied by delaying the application or by using slow-release fertilizer. If the farmland carbon, nitrogen, and phosphorus emission reduction area is an area of excessive fertilization, and the soil fertility is medium or low, the target benefits are carbon, nitrogen, and phosphorus emission reduction, fertilizer efficiency enhancement, and yield increase, and formula fertilization measures should be adopted. If the farmland carbon, nitrogen and phosphorus emission reduction area is an area of excessive fertilization, the soil texture is loam or clay, the soil fertility is medium or high, the target benefit is carbon, nitrogen and phosphorus emission reduction, and the fertilization reduction measures are adopted. If the carbon, nitrogen, and phosphorus emission reduction area of farmland is in a humid or semi-humid climate and the soil fertility is medium or low, the target benefits are fertilizer efficiency and yield increase, and green manure return to the field measures are adopted. If the farmland carbon, nitrogen and phosphorus emission reduction area is in a humid or semi-humid climate, the soil texture is sandy, the soil fertility is medium or low, and the target benefits are nitrogen and phosphorus emission reduction, fertilizer efficiency improvement and yield increase, straw return to the field measures are adopted. If the area for reducing carbon, nitrogen, and phosphorus emissions in farmland is a plain where livestock and poultry farming is concentrated, the soil texture is sandy, and the soil fertility is medium or low, and the target benefits are carbon, nitrogen, and phosphorus emission reduction and increased production, then organic and inorganic application measures should be adopted.
8. The spatial optimization configuration system for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland according to claim 6, characterized in that, The water-saving irrigation mode optimization module identifies the optimal water-saving irrigation mode for each farmland carbon, nitrogen, and phosphorus emission reduction zone based on the following strategy: If the farmland area for reducing carbon, nitrogen, and phosphorus emissions is medium- or heavily saline-alkali land, flooding irrigation should be adopted. If the area for reducing carbon, nitrogen, and phosphorus emissions from farmland is in an arid or semi-arid climate, and the target benefits are water conservation and increased production, rainwater harvesting irrigation should be adopted. If a farmland area for carbon, nitrogen, and phosphorus emission reduction meets one of the following two conditions, shallow wet irrigation shall be adopted: Slightly saline-alkali land, with soil texture of loam, clay or clay loam, and terrain of plains or hills, with the target benefits being carbon, nitrogen and phosphorus emission reduction, water conservation and increased production. The land is slightly saline-alkali, with sandy soil texture, high soil fertility, and terrain of plains or hills. The target benefits are carbon, nitrogen and phosphorus emission reduction, water conservation and increased production. If the farmland carbon, nitrogen and phosphorus emission reduction area is non-saline-alkali land, the soil texture is loam, clay or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen and phosphorus emission reduction, water saving and increased production, and dry and wet alternating irrigation is adopted. If the farmland area for carbon, nitrogen, and phosphorus emission reduction is non-saline-alkali land, the soil texture is loam, clay, or clay loam, the soil fertility is high, the climate is humid or semi-humid, the terrain is plain or hilly, the target benefits are carbon, nitrogen, and phosphorus emission reduction and water conservation, and controlled irrigation is adopted.
9. Spatial optimization configuration equipment for synergistic emission reduction measures of carbon, nitrogen, and phosphorus in farmland, characterized in that, The device includes a processor and a memory; The memory is used to store a database of potential farmland carbon, nitrogen and phosphorus synergistic emission reduction measures, regional environmental background data and target benefit indicators, and computer program code, and transmits them to the processor; The processor is used to execute the spatial optimization configuration method for the synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland as described in any one of claims 1-4, according to the instructions in the computer program code.
10. A computer storage medium storing a computer program thereon, characterized in that: When the computer program is executed by the processor, it implements the steps of the spatial optimization configuration method for the synergistic emission reduction measures of carbon, nitrogen and phosphorus in farmland as described in any one of claims 1-4.