Farmland sustainability quantification method based on multiple environmental influence indexes and crop nutrition

Abstract

The invention discloses a farmland sustainability quantification method based on multiple environmental influence indexes and crop nutrition, and belongs to the technical field of agricultural science and environmental science, and the method comprises the following steps: determining a farmland boundary, selecting environmental influence indexes of farmland production activities in the boundary, and quantifying the environmental influence indexes; integrating a database of crop yield and nutrient content, and selecting and quantifying nutrient indexes of crops based on the database; based on Euclidean norm, integrating the quantized environmental influence index and nutrition index into a sustainable index; and carrying out quantitative evaluation on the sustainability of different farmlands or different crops based on the sustainability indexes. According to the method, the key environmental influence indexes and the nutrition indexes are fused, and the environmental productivity of unit nutrition is quantified, so that the sustainability of the farmland is comprehensively evaluated, the evaluation accuracy is improved, a powerful tool is provided for agricultural policy making and practice, and the development of sustainable agriculture is promoted.

Description

Technical Field

[0001] The present invention belongs to the technical fields of agricultural science and environmental science, and particularly relates to a method for quantifying the sustainability of farmland based on multi-environmental impact indicators and crop nutrition. Background Art

[0002] Traditional methods for evaluating farmland sustainability often focus on single environmental or nutritional indicators and fail to comprehensively reflect the impact of farmland production on the ecological environment. These methods may overlook the complexity and multidimensionality of agricultural production, resulting in evaluation results that cannot comprehensively guide agricultural practices.

[0003] In existing evaluation systems, environmental impact assessment usually focuses on aspects such as greenhouse gas emissions, soil degradation, and water resource consumption, while nutritional assessment focuses on the nutritional value of crops, such as protein, vitamin, and mineral content. However, these assessments are often carried out independently, lacking a unified framework to comprehensively consider environmental impacts and nutritional outputs, and thus unable to accurately evaluate the comprehensive sustainability of farmland production.

[0004] Therefore, there is an urgent need to provide a method for quantifying the sustainability of farmland based on multi-environmental impact indicators and crop nutrition, which can comprehensively consider multiple environmental impact indicators and crop nutritional indicators to achieve a comprehensive quantitative assessment of farmland sustainability. Summary of the Invention

[0005] To solve the above technical problems, the present invention proposes a method for quantifying the sustainability of farmland based on multi-environmental impact indicators and crop nutrition. This method quantifies the environmental productivity per unit of nutrition by integrating key environmental indicators and nutritional indicators, thereby comprehensively evaluating the sustainability of farmland to solve the problems existing in the above prior art.

[0006] To achieve the above object, the present invention provides a method for quantifying the sustainability of farmland based on multi-environmental impact indicators and crop nutrition, including the following steps:

[0007] Determine the farmland boundary, and select and quantify the environmental impact indicators of farmland production activities within the boundary;

[0008] Integrate the database of crop yields and nutritional contents, and select and quantify the nutritional indicators of crops based on the database;

[0009] Integrate the quantified environmental impact indicators and nutritional indicators into a sustainability indicator based on the Euclidean norm;

[0010] Quantitatively evaluate the sustainability of different farmlands or different crops based on the sustainability indicator.

[0011] Optionally, the process of selecting and quantifying the environmental impact indicators of farmland production activities includes:

[0012] Collect and organize environmental impact indicators related to farm production activities;

[0013] Quantify the environmental impact indicators based on an environmental impact assessment tool and database; wherein, the environmental impact assessment tool and database include the greenhouse gas emission factor database of the IPCC.

[0014] Optionally, the environmental impact indicators include, but are not limited to, greenhouse gas emissions, soil acidification, freshwater eutrophication, grey water footprint, and total water footprint.

[0015] Optionally, the database integrating crop yields and nutrient contents includes: the global nutrient supply model and global crop production statistics.

[0016] Optionally, the process of selecting and quantifying the nutrient indicators of crops includes:

[0017] Based on the global nutrient supply model, determine the types and ranges of nutrients to be evaluated;

[0018] Based on the types and ranges of the nutrients, select the nutrient indicators of the crops;

[0019] Quantify the nutrient indicators of the crops based on the database integrating crop yields and nutrient contents.

[0020] Optionally, the nutrient indicators of the crops include macronutrients, vitamins, and macro elements; wherein, the macronutrients include calories, proteins, and fats, the vitamins include vitamin A, folic acid, and vitamin C, and the macro elements include calcium, iron, and zinc.

[0021] Optionally, the process of integrating the quantified environmental impact indicators and nutrient indicators into a sustainability indicator based on the Euclidean norm further includes:

[0022] Normalize the quantified environmental impact indicators and nutrient indicators based on the min-max normalization method.

[0023] The present invention also provides an electronic device, including: a memory and a processor; the memory is used for storing a program; the processor is used for executing the program to implement each step of the farm sustainability quantification method based on multi-environmental impact indicators and crop nutrients.

[0024] The present invention also provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each step of the farm sustainability quantification method based on multi-environmental impact indicators and crop nutrients is implemented.

[0025] Compared with the prior art, the present invention has the following advantages and technical effects:

[0026] The present invention selects and quantifies the environmental impact indicators of farm production activities; selects and quantifies the nutritional indicators of crops; integrates the quantified environmental impact indicators and nutritional indicators into a sustainability indicator based on the Euclidean norm; and quantitatively evaluates the sustainability of different farmlands or different crops based on the sustainability indicator.

[0027] By integrating key environmental impact indicators and nutritional indicators, the present invention quantifies the environmental productivity per unit of nutrition, thereby comprehensively evaluating the sustainability of farmland. This not only improves the accuracy of the evaluation, but also provides a powerful tool for agricultural policy-making and practice, promoting the development of sustainable agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0029] Figure 1 is a schematic flowchart of the method of the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail this application.

[0031] It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0032] Embodiment 1

[0033] In this embodiment, farmland sustainability is defined as minimizing the environmental impact of agricultural production while meeting current food demands. To quantify this concept, this embodiment proposes a method of converting farmland sustainability into the environmental impact per unit of nutrition, i.e., environmental productivity.

[0034] Environmental productivity = Environmental impact / Nutritional yield;

[0035] Environmental productivity refers to the impact on the environment during the production of a unit of nutrition (such as per calorie, per gram of protein). This quantification method allows this embodiment to evaluate the efficiency of farm production activities in terms of resource utilization and environmental impact. By calculating the environmental productivity per unit of nutrition, the environmental efficiency of agricultural production can be more intuitively understood, and specific improvement directions can be provided for agricultural management. This method not only helps to optimize resource allocation, but also promotes the development of environmentally friendly agricultural practices.

[0036] Specifically, the calculation of environmental productivity involves the following steps:

[0037] Quantification of environmental impacts: First, it is necessary to quantify various environmental impacts in the agricultural production process, including greenhouse gas emissions, soil acidification, freshwater eutrophication, grey water footprint, and total water footprint, etc.

[0038] Assessment of environmental productivity: Finally, assess the environmental productivity of different farmlands or different crops to determine which practices are more sustainable and provide directions for improvement.

[0039] Through this method, the concept of farmland sustainability is concretized into a quantifiable indicator, enabling agricultural managers and policymakers to make more informed decisions based on data. This quantification method not only provides an assessment tool but also offers a clear path towards achieving the sustainability of agricultural production.

[0040] As Figure 1 shown, this embodiment provides a method for quantifying farmland sustainability based on multi-environmental impact indicators and crop nutrition, which specifically includes the following steps:

[0041] Determine the farmland boundary, select and quantify the environmental impact indicators of farmland production activities within the boundary;

[0042] Integrate the database of crop yields and nutrient contents, and select and quantify the nutrient indicators of crops based on the database;

[0043] Integrate the quantified environmental impact indicators and nutrient indicators into a sustainability indicator based on the Euclidean norm;

[0044] Quantitatively evaluate the sustainability of different farmlands or different crops based on the sustainability indicator.

[0045] Implementable, the process of selecting environmental indicators and quantifying the farmland boundary includes:

[0046] Selection of environmental indicators:

[0047] This embodiment first involves the selection of environmental impact indicators, which include but are not limited to greenhouse gas emissions (GHG), soil acidification (Acid.), freshwater eutrophication (Eutroph.), grey water footprint (GreyWF), and total water footprint (TotalWF). These indicators are selected because they can comprehensively reflect the environmental impacts of farmland production, including aspects such as climate change, water resource utilization, and ecological toxicity.

[0048] The specific steps are as follows:

[0049] Collect and organize environmental data related to farm production activities, including but not limited to irrigation, fertilization, pesticide use, and crop residue treatment, etc.;

[0050] Utilize existing environmental impact assessment tools and databases, such as the greenhouse gas emission factor database of the IPCC, to quantify the environmental impacts of various activities. Common agricultural emission sources are shown in Table 1:

[0051] Table 1

[0052]

[0053] Determination of farm boundaries:

[0054] Farm boundaries are defined at the farm stage, including agricultural inputs and farmland cultivation. The determination of this boundary is based on the unpredictability of the final retail product. Specifically, the quantification of environmental indicators will cover the entire process from agricultural inputs (such as irrigation, pesticides, fertilizers) to crop cultivation (such as mechanical fuel requirements, agricultural film requirements).

[0055] The specific process includes:

[0056] Determine the farm boundary to clarify the scope and object of assessment;

[0057] Identify all activities within the farm that may have environmental impacts and incorporate them into the assessment system.

[0058] Implementable. The process of selecting nutritional indicators and integrating databases includes:

[0059] Selection of nutritional indicators:

[0060] This embodiment further relates to the selection of nutritional indicators, which include macronutrients such as calories, protein, and fat; vitamins such as vitamin A, folic acid, and vitamin C; and macro elements such as calcium, iron, and zinc. The selection of these nutritional indicators is based on the Global Nutrition Supply Model (GENuS), which focuses on nine nutrients that are widely lacking.

[0061] The specific steps are as follows:

[0062] According to the GENuS model, determine the types and ranges of nutrients to be evaluated;

[0063] Collect data on the nutritional components of crops, including the contents of macronutrients, vitamins, and macro elements.

[0064] Utilize a nutritional database, such as the Food Composition Database of the United States Department of Agriculture (USDA), to quantify the nutritional value of crops.

[0065] Database integration of crop yield and nutritional content:

[0066] This embodiment will integrate multiple databases, including the Global Nutrition Supply Model (GENuS) and global crop production statistics, to provide data on nutrient supply globally and data on the location and yield of 42 crops.

[0067] The specific steps are as follows:

[0068] Collect and collate global crop production statistics, including information such as the type, yield, and geographical location of crops;

[0069] Match the crop yield data with the nutrient content data and calculate the total nutrient of each crop;

[0070] Use statistical software or a database management system to integrate and analyze the collected data.

[0071] The total nutrient within this range is equal to the sum of the nutrients of each crop, supporting the quantification of nutritional indicators.

[0072] nutri i = ∑yield j ·nutri·content ij ,

[0073] where i represents the i-th nutrient, j represents the j-th crop, and nutri content ij represents the content of the i-th nutrient in the j-th crop. When focusing on specific crop classifications, the SPAM crop classification method in Table 2 is adopted.

[0074] Table 2

[0075]

[0076] The relationship between integrating the database and quantifying nutritional indicators is close and complementary:

[0077] Data basis: Integrating the database provides the necessary data basis for quantifying nutritional indicators. Without a comprehensive and accurate database, it is impossible to effectively quantify nutritional indicators.

[0078] Data richness: By integrating multiple databases, more abundant and comprehensive data can be obtained, which helps to more accurately quantify nutritional indicators because a single database may not cover all necessary information.

[0079] Data consistency: Integrating the database helps to ensure data consistency and comparability, which is crucial for quantifying nutritional indicators. Data from different sources may vary. After integration, the standards can be unified and errors can be reduced.

[0080] Data Update: Integrating databases ensures that the quantification of nutritional indicators is based on the latest data, which is crucial for tracking nutritional trends and assessing changes in nutritional status.

[0081] Data Analysis: The integrated database can be used for more complex data analysis using statistical software or database management systems, which helps identify patterns, trends, and potential issues in nutritional intake.

[0082] Decision Support: Quantified nutritional indicators can provide decision support for policymakers, researchers, and public health experts, and the integrated database is the source of these quantified indicators.

[0083] Global Perspective: Integrating databases on a global scale can provide a global perspective, helping to quantify global nutritional indicators, which is crucial for achieving global nutritional security and sustainable development goals.

[0084] Association between Crop Yield and Nutritional Content: By integrating crop yield data and nutritional content data, the total amount of nutrients in each crop can be calculated, which is important for assessing the contribution of specific crops to nutritional supply and optimizing agricultural production.

[0085] Implementable, integrating the quantified environmental impact indicators and nutritional indicators into a sustainability indicator based on the Euclidean norm; the process of quantitatively evaluating the sustainability of different farmlands or different crops based on the sustainability indicator includes:

[0086] Method for Assessing Farmland Sustainability Considering Multiple Environmental Indicators:

[0087] In this embodiment, the selected sub-indicators are integrated into a comprehensive indicator of Cropland Sustainability through the method of Euclidean norm. This method takes into account the importance of each sub-indicator and can provide a comprehensive quantitative result to evaluate farmland sustainability.

[0088] The specific steps are as follows:

[0089] Determine the weights of each environmental impact indicator, which can be determined according to the relative importance of the indicator to environmental impact;

[0090] Using the Euclidean norm method, integrate each environmental impact indicator and nutritional indicator into a comprehensive sustainability indicator;

[0091] Compare and evaluate the sustainability indicators of different farmlands or different crops.

[0092]

[0093] where \(i\) represents the \(i\)-th environmental impact considered, \(X\) is an \(n\)-dimensional vector space of environmental impacts, and \(X\) i is the \(i\)-th environmental impact.

[0094] Unification among multiple nutritional indicators:

[0095] To ensure comparability among different indicators, this embodiment uses the Min-Max normalization method to coordinate different nutrient elements. This method scales all indicators to the range of \([0, 1]\), enabling different indicators to be compared and weighted on the same scale.

[0096] The specific steps are as follows:

[0097] Normalize each nutritional indicator so that its value lies within the range of \([0, 1]\);

[0098] Determine the minimum and maximum values of each nutritional indicator as the basis for normalization;

[0099] Apply the normalization formula to convert the original data into comparable values:

[0100]

[0101] where \(i\) represents the \(i\)-th environmental impact considered, \(j\) represents the \(j\)-th nutrient, \(X_i\) is the \(i\)-th environmental impact, and \(X\) ij represents the environmental impact quantified based on the \(j\)-th nutrient quantity.

[0102] Through the above steps, this embodiment provides a systematic method that provides a new quantitative dimension for farmland sustainability by quantifying the environmental impact of unit nutrients, i.e., environmental productivity. This method can not only evaluate the sustainability of farmland more comprehensively but also identify key factors for improving farmland sustainability, providing a scientific basis for agricultural policy formulation and practice.

[0103] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for quantifying the sustainability of farmland based on multi - environmental impact indicators and crop nutrition, characterized in that, It includes the following steps: Determine the farmland boundary, and select and quantify the environmental impact indicators of farm production activities within the boundary; Integrate the databases of crop yields and nutrient contents, and select and quantify the nutrient indicators of crops based on the databases; Integrate the quantified environmental impact indicators and nutrient indicators into a sustainability indicator based on the Euclidean norm; Quantitatively evaluate the sustainability of different farmlands or different crops based on the sustainability indicator; The environmental impact indicators include, but are not limited to, greenhouse gas emissions, soil acidification, freshwater eutrophication, grey water footprint, and total water footprint; The nutrient indicators of the crops include macronutrients, vitamins, and macro elements; wherein, the macronutrients include calories, proteins, and fats, the vitamins include vitamin A, folic acid, and vitamin C, and the macro elements include calcium, iron, and zinc.

2. The method according to claim 1, wherein The process of selecting and quantifying the environmental impact indicators of farm production activities includes: Collect and collate the environmental impact indicators related to farm production activities; Quantify the environmental impact indicators based on environmental impact assessment tools and databases; wherein, the environmental impact assessment tools and databases include the greenhouse gas emission factor database of the IPCC.

3. The method according to claim 1, wherein The integration of the databases of crop yields and nutrient contents includes: the global nutrition supply model and the global crop production statistics.

4. The method according to claim 1, wherein The process of selecting and quantifying the nutrient indicators of crops includes: Based on the global nutrition supply model, determine the types and ranges of nutrients to be evaluated; Based on the types and ranges of the nutrients, select the nutrient indicators of the crops; Quantify the nutrient indicators of the crops based on the integrated databases of crop yields and nutrient contents.

5. The method according to claim 1, wherein The process of integrating the quantified environmental impact indicators and nutrient indicators into a sustainability indicator based on the Euclidean norm further includes: Normalize the quantified environmental impact indicators and nutrient indicators based on the min-max normalization method.

6. An electronic device, characterized in that, It includes: A memory and a processor; The memory is used to store programs; The processor is used to execute the programs to implement each step of the farmland sustainability quantification method based on multiple environmental impact indicators and crop nutrients as described in any one of claims 1-5.

7. A readable storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by the processor, it implements each step of the farmland sustainability quantification method based on multiple environmental impact indicators and crop nutrients as described in any one of claims 1-5.

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