A method for determining a farming-grazing interlaced zone based on a farming-grazing output value ratio

Abstract

The application provides a kind of based on the determination method of farming-pastoral ecotone of farming-pastoral output value ratio, and relates to the technical field of farming and animal husbandry.The determination method of farming-pastoral ecotone based on the farming-pastoral output value ratio specifically includes the following steps:S1.Obtain output value ratio,S2.Select dominant area,S3.Calculate the upper and lower limits of farming-pastoral output value ratio,S4.Spatial interpolation of farming-pastoral ecotone,S5.Data screening.The application obtains the numerical boundary and spatial boundary of farming-pastoral ecotone by the way of farming-pastoral output value ratio, and carries out experimental verification in the northern farming-pastoral ecotone of Shaanxi-Mongolia boundary section in China.The results show that the results obtained by this method are consistent with the results obtained by traditional method, but there are obvious differences in principle and technical process.The main characteristics are less calculation index and index coefficient, simpler data acquisition and processing, less human interference in calculation process, and the calculation results can form reference or complement to traditional method, with good time domain and spatial domain comparability.

Description

Technical Field

[0001] This invention relates to the field of agricultural and animal husbandry technology, specifically to a method for determining agro-pastoral ecotones based on the ratio of agricultural and pastoral output value. Background Technology

[0002] The agro-pastoral ecotone is the area where my country's traditional agricultural and pastoral regions intersect. It serves as a transitional zone for my country's ecological environment and an important barrier for ecological security. As a result, scholars at home and abroad have conducted extensive research on the agro-pastoral ecotone.

[0003] In 1953, Zhao Songqiao used an annual precipitation of approximately 400 mm as a defining indicator to conduct research on the corresponding agro-pastoral ecotone through field surveys. [1] (1. Zhao Songqiao. Economic Geography Survey of Chabei, Chaqi League and Xilingol League—An Agricultural-Pastoral Transitional Area [J]. Acta Geographica Sinica, 1953, 19(1): 43-60.) In 1958, Zhou Lisan et al. conducted a corresponding study using field survey methods, focusing on the transition from semi-humid to semi-arid climates and the combination of agriculture and animal husbandry. [2] (2. Zhou Lisan, Wu Chuanjun, Zhao Songqiao. A Preliminary Study on Agricultural Zoning in the Agro-Pastoral Ecotone of Gansu and Qinghai [M]. Beijing: Science Press, 1958: 23-24.); In 1984, Zhu Zhenda et al. conducted relevant research on the northern agro-pastoral ecotone using climatic factors such as annual precipitation, precipitation variability, and the number of days with gale-force winds of level 7-8. [3] (3. Zhu Zhenda, Liu Shu, Yang Youlin. On the possibility and reality of desertification control in the agro-pastoral ecotone of northern China [J]. Geographical Science, 1984, 4(8): 197-206.) In 1987, Li Shikui et al. conducted research on the agro-pastoral ecotone using climate factors such as the frequency of annual precipitation ≥400mm ≥50% as the dominant indicator and the number of days with daily average wind speed ≥5m / s as the auxiliary indicator. [4] (4. Li Shikui. Agricultural Climate Regionalization in China [J]. Journal of Natural Resources, 1987, 2(1): 71-83.); Wang Jingai et al., 1988-2019 [5] Zhang Piyuan [6] Wu Chuanjun et al. [7] Zhou Guangsheng [8] Zhao Harlin et al. [9] Chen Quangong

[10] Liu Junhui et al.

[11] Liu J et al.

[12] Li Qiuyue et al.

[13] Shi Wenjiao et al.

[14] Ye Jiaqi and others

[15] Studies on agro-pastoral ecotones were conducted on land use factors, climate factors, and land use indicators. (5. Wang Jingai, Shi Peijun. On land resource utilization and regional development strategy in agro-pastoral ecotone of Inner Mongolia [J]. Regional Research and Development, 1988, 7(1): 24-28.; 6. Zhang Piyuan. Historical climate change in China [M]. 1992: 195-204.; 7. Wu Chuanjun, Guo Huancheng. Land use in China [M]. 1994: 174.; 8. Zhou Guangsheng. Mechanism and simulation of the impact of climate change on agricultural and pastoral productivity in ecologically fragile areas [J]. Resources Science, 1999, 21(5): 48.) -54.;9. Zhao Harlin, Zhao Xueyong, Zhang Tonghui, et al. Geographical delineation and ecological problems of the agro-pastoral ecotone in northern China [J]. Advances in Earth Science, 2002, 17(5): 739-747.;10. Chen Quangong, Zhang Jian, Yang Lina. Calculation and simulation of the agro-pastoral ecotone in China based on GIS [J]. Journal of Lanzhou University (Natural Science Edition), 2007, 43(5): 24-28.;11. Liu Junhui, Gao Jixi. Changes in land use and landscape pattern in the boundary change zone of the agro-pastoral ecotone in northern China [J]. Transactions of the Chinese Society of Agricultural Engineering, 2008, 24(11): 76-82.;12. LIU J, GAO J, LV S, et al. Shifting farming epastoral ecotone in China under climate and land use changes[J]. Journal of Arid Environments, 2011, 75(298-308). 13. Li Qiuyue, Pan Xuebiao. The impact of climate change on the spatial displacement of the agro-pastoral ecotone in northern my country[J]. Arid Zone Resources and Environment, 2012, 26(10): 1-6. 14. Shi Wenjiao, Liu Yiting, Shi Xiaoli. A study on the quantitative detection method of the impact of climate change on the boundary change of the agro-pastoral ecotone in northern China[J]. Acta Geographica Sinica, 2017, 72(3): 407-419. 15. Ye Jiaqi. A study on the definition of the agro-pastoral ecotone in northern China and its regional differentiation pattern[D]. Inner Mongolia: Inner Mongolia University, 2019: 1-50). The above studies have made some progress, but there are still significant problems.First, scholars from different professional fields have significant differences in their selection of research indicators and the assignment of indicator weights. Moreover, some scholars' selection of evaluation indicators and indicator weights is related to experience, which can directly lead to obvious differences in calculation results or even diametrically opposed results. Second, the agro-pastoral ecotone is an objectively existing transitional phenomenon between agriculture and animal husbandry. Natural factors such as climate and land use are only one external condition for the existence of the agro-pastoral ecotone or transitional zone. When there are many conditions, their effects may lead to multiple interpretations or ambiguities. Third, the coexistence of agriculture and animal husbandry is a significant feature of the agro-pastoral ecotone or transitional zone. The development of agriculture and animal husbandry is the result of a combination of factors such as the ecological environment, agricultural and pastoral economy, policies and regulations, population structure, degree of mechanization, and production costs. It is difficult to reverse the results through a single climate factor or land use factor.

[0004] The above analysis shows that inconsistencies in the classification standards and indicators lead to significant spatial differences in the division of agro-pastoral ecotones.

[16] (16. Research progress on methods for determining the boundaries of agro-pastoral ecotones [J]. Xiao Luxiang, Zhang Zengxiang. Advances in Geographical Science. 2008(02)). Most studies define the northern agro-pastoral ecotone as a whole based on different indicator characteristics, and most studies do not consider regional differences, resulting in the distribution range of the agro-pastoral ecotone in northern my country not being very clear. Therefore, further research on the boundaries of agro-pastoral ecotones remains of great significance in agronomy, ecology, geography, and economics. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a method for determining agro-pastoral ecotones based on the ratio of agricultural to livestock output value. This method solves the problem that most existing studies define the northern agro-pastoral ecotones as a whole based on different indicator characteristics without considering regional differences, resulting in the unclear distribution range of the northern agro-pastoral ecotones in my country.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a method for determining agro-pastoral ecotones based on the ratio of livestock to agricultural output value, specifically comprising the following steps:

[0009] S1. Obtaining the output value ratio

[0010] To obtain the ratio of livestock and agricultural output value for a specified area and time period, the livestock and agricultural output value ratio is the ratio of the total output value or added value of livestock farming to the total output value or added value of agriculture within a unit area or a unit administrative region within a unit time period.

[0011] S2. Select the dominant region

[0012] Select typical agricultural advantage areas and select typical pastoral advantage areas;

[0013] S3. Calculate the upper and lower limits of the ratio of livestock and agricultural output value.

[0014] Calculate the ratio of output value between livestock and farmers in typical agricultural and pastoral advantageous areas; perform histogram testing on the ratio of output value between livestock and farmers in typical agricultural advantageous areas, and calculate the upper limit of abnormality in the ratio of output value between livestock and farmers in typical agricultural advantageous areas; perform histogram testing on the ratio of output value between livestock and farmers in typical pastoral advantageous areas, and calculate the lower limit of abnormality in the ratio of output value between livestock and farmers in typical pastoral advantageous areas.

[0015] S4. Spatial interpolation of agro-pastoral ecotones

[0016] The ratio of agricultural output value in different regions is interpolated using GIS spatial interpolation methods to obtain contour lines or iso-regions.

[0017] S5. Data Filtering

[0018] Filter values ​​that match [M 农上限， M 牧下限 The area marked as the agro-pastoral ecotone.

[0019] More preferably, the typical agricultural advantage area in S2 is a region that has long been engaged in crop production, and where animal husbandry, forestry, and fishery account for a small proportion of local economic activities, while crop production has a significant advantage.

[0020] More preferably, the typical pastoral advantage area in S2 is a region that has long been engaged in pastoral production, where planting, forestry, and fishery account for a small proportion of local economic activities, and pastoralism has a significant advantage.

[0021] More preferably, S2 further includes selecting typical agricultural advantage areas and typical pastoral advantage areas that should avoid agricultural and pastoral industrial structure adjustment areas.

[0022] More preferably, step S4 further includes a logarithm that numerically conforms to [M 农上限， M 牧下限 The area was initially marked as an agro-pastoral ecotone, centered on the geometric center of the county or the location of the county government, with the ratio of agricultural to pastoral output as the numerical value. GIS methods were used for interpolation (interpolation methods include inverse distance weighted average, global polynomial interpolation, radial basis function interpolation, local polynomial interpolation, Kriging, surface interpolation, and empirical Bayesian Kriging). The interpolation results were used to extract contour lines or isopleths, and those conforming to [M] were selected. 农上限， M 牧下限 The area.

[0023] More preferably, step S5 also includes manual screening of areas that do not have agricultural-pastoral transition characteristics.

[0024] More preferably, the formula for the ratio of livestock and agricultural output value in S1 is as follows: X(i,j)=Ag(i,j) / Ah(i,j), where Ah(i,j) is the monetary value of the total agricultural output value or agricultural added value of the i-th unit area or unit administrative region in the j-th year, Ag(i,j) is the monetary value of the total livestock output value or livestock added value of the i-th unit area or unit administrative region in the j-th year, and X(i,j) is the ratio of livestock and agricultural output value of the i-th unit area or unit administrative region in the j-th year. The unit area refers to the gridded unit area, such as a 10*10 km or 5*5 km grid. The unit administrative region refers to the provincial, municipal, county, or township level administrative region. The agricultural output value refers to the output value of crop farming, and the agricultural added value refers to the added value of crop farming. To study the agro-pastoral ecotone, we collect statistical yearbooks or statistical bulletins published in specific years from various provinces, counties, districts, and leagues, extract the total output value or added value of animal husbandry and the total output value or added value of agriculture for that year, and calculate the ratio of animal husbandry to agricultural output value in different counties in a specific year or in a specific region at different times based on the relevant formula for the ratio of animal husbandry to agricultural output value.

[0025] More preferably, typical agricultural advantage areas are determined based on the dominant position of traditional crop farming; typical pastoral advantage areas are determined based on the dominant position of animal husbandry; and the selection of agricultural advantage areas avoids areas where agricultural and pastoral industries are being adjusted.

[0026] More preferably, the formula for the upper limit of abnormal agricultural advantage areas in S3 is:

[0027]

[0028] n is the total number of samples, X i,j The ratio of agricultural output value to livestock output value in the i-th unit area or administrative region in the j-th year;

[0029] Formula for the lower limit of anomalies in advantageous pastoral areas:

[0030]

[0031] The numerical boundary for the ratio of agricultural output to pastoral output in the agro-pastoral ecotone is [M]. 农上限， M 牧下限 ], that is, greater than or equal to M 农上限 And less than or equal to M 牧下限 .

[0032] (III) Beneficial Effects

[0033] This invention provides a method for determining agro-pastoral ecotones based on the ratio of livestock to agricultural output value, which has the following beneficial effects:

[0034] 1. This invention calculates the numerical and spatial boundaries of the agro-pastoral ecotone by using the ratio of agricultural and pastoral output value. Although the calculation results are largely consistent with those obtained by traditional methods, there are significant differences in principle and technical process. Its main features are that there are fewer calculation indicators and coefficients, the data acquisition and processing are simpler, there is less human interference in the calculation process, the calculation results can be used as a reference or complement to traditional methods, and the experimental results based on this method have good temporal and spatial comparability.

[0035] 2. This method, in conjunction with existing methods, can clearly observe areas where industrial structure adjustments have significantly changed. It can also utilize multi-year continuous statistical data to identify the characteristics of changes in agro-pastoral ecotones, and it is very flexible in calculating thresholds for different regions.

[0036] 3. Most existing technical indicators are natural-related indicators, which are used to delineate agro-pastoral ecotones. However, the method of this invention takes a different approach and bypasses natural factors by proposing the ratio of pastoral and agricultural output value. It uses a large amount of data on the ratio of pastoral and agricultural output value over many years to study the spatial location and changing characteristics of agro-pastoral ecotones. Through experiments, it can complement or learn from existing technical methods, thus helping to reconstruct the changes in agro-pastoral transition zones from a multidimensional perspective. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the agricultural-pastoral transition zone principle of the method for comparing the output value of livestock and farmers according to the present invention.

[0038] Figure 2 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] like Figure 1-2 As shown in the figure, this embodiment of the invention provides a method for determining agro-pastoral ecotones based on the ratio of livestock to agricultural output value, specifically including the following steps:

[0042] S1. Obtaining the output value ratio

[0043] This function retrieves the livestock-agricultural output value ratio for a specified region and time period. The livestock-agricultural output value ratio is the ratio of the total livestock output value or added value to the total agricultural output value or added value per unit area or administrative region per unit time period. The formula for the livestock-agricultural output value ratio is: X(i,j) = Ag(i,j) / Ah(i,j), where Ah(i,j) is the monetary value of the total agricultural output value or added value in the j-th year for the i-th unit area or administrative region, Ag(i,j) is the monetary value of the total livestock output value or added value in the j-th year for the i-th unit area or administrative region, and X(i,j) is the monetary value of the total livestock output value or added value in the j-th year for the i-th unit area or administrative region. The ratio of livestock and agricultural output value in the j-th year is defined as follows: unit area refers to the gridded unit area, such as a 10*10 km or 5*5 km grid; unit administrative region refers to the provincial, municipal, county, or township level administrative region; agricultural output value refers to the output value of crop farming; and agricultural added value refers to the added value of crop farming. To study the agro-pastoral ecotone, statistical yearbooks or statistical bulletins published in the corresponding years are collected from various provinces, counties, districts, and leagues. The total output value or added value of livestock farming and the total output value or added value of agriculture for the year are extracted. Based on the relevant formula for the ratio of livestock and agricultural output value, the ratio of livestock and agricultural output value in different counties in a specific year or the ratio of livestock and agricultural output value in a specific region at different times is calculated.

[0044] S2. Select the dominant region

[0045] Typical agricultural and pastoral advantageous areas should be selected. Typical agricultural advantageous areas should be determined based on the traditional dominance of crop farming; typical pastoral advantageous areas should be determined based on the dominance of pastoral production. The selection of agricultural advantageous areas should avoid areas undergoing agricultural and pastoral restructuring. Typical agricultural advantageous areas are those that have long been engaged in crop production, with pastoral, forestry, and fishery accounting for a relatively small proportion of local economic activity, and crop farming exhibiting a significant advantage. Typical pastoral advantageous areas are those that have long been primarily engaged in pastoral production, with crop farming, forestry, and fishery accounting for a relatively small proportion of local economic activity, and pastoral farming exhibiting a significant advantage. The selection of agricultural and pastoral advantageous areas should avoid areas undergoing agricultural and pastoral restructuring.

[0046] S3. Calculate the upper and lower limits of the ratio of livestock and agricultural output value.

[0047] Calculate the ratio of agricultural output value to livestock output value in typical agricultural and pastoral advantageous areas; perform histogram testing on the ratio of agricultural output value to livestock output value in typical agricultural advantageous areas; calculate the upper limit of anomalies in the ratio of agricultural output value to livestock output value in typical agricultural advantageous areas; perform histogram testing on the ratio of agricultural output value to livestock output value in typical pastoral advantageous areas; calculate the lower limit of anomalies in the ratio of agricultural output value to livestock output value in typical pastoral advantageous areas; formula for the upper limit of anomalies in agricultural advantageous areas:

[0048]

[0049] n is the total number of samples, X i,j The ratio of agricultural output value to livestock output value in the i-th unit area or administrative region in the j-th year;

[0050] Formula for the lower limit of anomalies in advantageous pastoral areas:

[0051]

[0052] The numerical boundary for the ratio of agricultural output to pastoral output in the agro-pastoral ecotone is [M]. 农上限， M 牧下限 ], that is, greater than or equal to M 农上限 And less than or equal to M 牧下限 ;

[0053] S4. Spatial interpolation of agro-pastoral ecotones

[0054] The ratio of livestock and agricultural output value in different regions is interpolated using GIS spatial interpolation methods to obtain contour lines or isopleths. Using the geometric center of the county or the location of the county government as the center, and the livestock and agricultural output value ratio as the numerical value, GIS methods are employed for interpolation. These methods include inverse distance weighted average, global polynomial interpolation, radial basis function interpolation, local polynomial interpolation, Kriging, surface interpolation, and empirical Bayesian Kriging, among others. Contour lines or isopleths are extracted from the interpolation results, and those conforming to [M...] are selected. 农上限， M 牧下限 The region also includes areas that numerically conform to [M]. 农上限， M 牧下限 The area was marked as an agro-pastoral ecotone;

[0055] S5. Data Filtering

[0056] The logarithm conforms to [M 农上限， M 牧下限 The areas covered also include those that do not have the characteristics of an agricultural-pastoral transition and require manual screening.

[0057] Example 2:

[0058] like Figure 1 , Figure 2 As shown, this embodiment of the invention provides a method for determining agro-pastoral ecotones based on the ratio of livestock to agricultural output value, comprising the following steps:

[0059] S1. To study the agro-pastoral ecotone in northern my country, collect statistical yearbooks or statistical bulletins published by the government for specific years from counties, districts, and leagues in Shaanxi, Gansu, Inner Mongolia, Hebei, Shanxi, Heilongjiang, Jilin, and Liaoning provinces. Extract the total output value or added value of animal husbandry and the total output value or added value of agriculture for that year. Based on the relevant formula for the ratio of animal husbandry to agricultural output value, calculate the ratio of animal husbandry to agricultural output value in different counties in a specific year or in a specific region at different times.

[0060] S2. Select typical agricultural and pastoral advantageous areas.

[0061] This study focuses on the agro-pastoral ecotone on the border of Shaanxi and Inner Mongolia. Xianyang and Baoji in Shaanxi Province and Tianshui in Gansu Province are traditional agricultural production areas where traditional crop farming is dominant, and therefore they are identified as typical agricultural advantage areas. Areas such as Qianyang County, Long County, and Linyou County, which are undergoing adjustments in pastoral industries, are excluded. Xilingol League in Inner Mongolia Autonomous Region is a traditional pastoral production area where pastoral production is dominant, and therefore it is identified as a typical pastoral advantage area.

[0062] When selecting areas with agricultural advantages, avoid areas undergoing agricultural and pastoral industry restructuring.

[0063] S3. Determine M for a specific year by calculating the ratio of livestock and agricultural output value in each county of typical agricultural advantage areas in a specific year, and by performing histogram verification. 农上限 =0.608.

[0064] Calculation of the ratio of livestock output to agricultural output in typical pastoral advantageous areas from 1982 to 2018, histogram test, and determination of M for this region. 牧下限 =0.78.

[0065] S4. Using the geometric center of the county or the location of the county government as the center, and the ratio of livestock and agricultural output value as the numerical value, GIS methods are used for interpolation. Interpolation methods include inverse distance weighted average method, global polynomial interpolation method, radial basis function interpolation method, local polynomial interpolation method, Kriging method, surface interpolation, empirical Bayes Kriging method, etc.

[0066] Extract contour lines or contour regions using interpolation results, and filter those that meet [M] 农上限， M 牧下限 The area.

[0067] S5. Data filtering: Check if the values ​​match [M]. 农上限， M 牧下限 Areas that do not have the characteristics of an agricultural-pastoral transition are subject to artificial screening.

[0068] This method yielded the agro-pastoral ecotone along the Ming Great Wall ruins in Yulin City on the Shaanxi-Inner Mongolia border in a certain year. The calculated results are similar to the trend of the 400 mm precipitation line, with the ecotone appearing "entwined" on both sides of the 400 mm precipitation line. Previous delineation of the agro-pastoral ecotone mainly relied on annual precipitation, precipitation variation rate, number of days with gale-force winds of level 7-8, ≥50% of annual precipitation of 400 mm as the dominant indicators, wind speed, humidity coefficient, proportion of agricultural land, proportion of pastoral land, proportion of cultivated / grassland / forest area, aridity, cultivated land density, cultivated-grass ratio coefficient within 1 square kilometer, and natural conditions such as rainfall, temperature, and topographic conditions. The labor of farmers and herdsmen is reflected in the ratio of agricultural to pastoral output value. Generally, farmers and herdsmen choose agricultural or pastoral production activities to maximize their own benefits. This choice is indirectly reflected in the ratio of agricultural to pastoral output value. The method of using the agricultural-pastoral output value ratio in research on agro-pastoral transition zones has the following technical advantages: First, the indicator selection is simple and singular, and the ratio of agricultural to pastoral output value has clear comparability in historical and spatial data. Second, the calculation of indicator thresholds has less human interference. The calculation of indicator thresholds mainly relies on the mathematical statistics of thresholds in typical agricultural and pastoral advantageous areas, with a relatively mature mathematical basis. The calculation principle diagram is shown below. Figure 1 Furthermore, some cities in my country have banned grazing for many years. The conclusion drawn based on natural factors (precipitation, precipitation change rate, number of days with gale-force winds of level 7-8, 50% of annual precipitation ≥400mm as the main indicator, wind speed, humidity coefficient, proportion of agricultural land, proportion of pastoral land, proportion of cultivated / grass / forest area, aridity, cultivated land density, and cultivated-grass ratio coefficient within 1 square kilometer) is inconsistent with the current situation.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for determining a farming-pastoral ecotone based on a ratio of farming and animal husbandry output value, characterized in that: Specifically comprising the following steps: S1. Obtain the output value ratio Obtain the output value ratio of the specified area in the specified period, which is the ratio of the total output value or added value of animal husbandry to the total output value or added value of agriculture per unit area or unit administrative region per unit time; The formula of the output value ratio in S1 is X(i,j)=Ag(i,j) / Ah(i,j), Ah(i,j) is the monetary value of the total output value or added value of agriculture in the jth year of the ith unit area or unit administrative region, Ag(i,j) is the monetary value of the total output value or added value of animal husbandry in the jth year of the ith unit area or unit administrative region, X(i,j) is the output value ratio of the jth year of the ith unit area or unit administrative region, the unit area refers to the unit area of grid, the unit administrative region refers to the provincial, municipal, county, and township administrative regions, and the total output value of agriculture refers to the output value of planting industry, and the added value of agriculture refers to the added value of planting industry; S2. Select the dominant area Select a typical agricultural dominant area and a typical animal husbandry dominant area; S3. Calculate the upper and lower limits of the output value ratio of agriculture and animal husbandry Calculate the output value ratio of agriculture and animal husbandry in the typical agricultural dominant area and the typical animal husbandry dominant area; perform histogram test on the output value ratio of agriculture and animal husbandry in the typical agricultural dominant area to calculate the abnormal upper limit of the output value ratio of agriculture and animal husbandry in the typical agricultural dominant area; perform histogram test on the output value ratio of agriculture and animal husbandry in the typical animal husbandry dominant area to calculate the abnormal lower limit of the output value ratio of agriculture and animal husbandry in the typical animal husbandry dominant area; The abnormal upper limit formula of the agricultural dominant area in S3 is: n is the total number of samples, X i,j is the ratio of the i-th unit area or administrative region's j-year's livestock and agricultural output value; The abnormal lower limit formula of the animal husbandry dominant area is: The ratio of the output value of farming and animal husbandry in the farming-animal husbandry interlaced zone to the numerical boundary is [M 农上限， M 牧下限 ], that is, greater than or equal to M 农上限 and less than or equal to M 牧下限 ; S4. Spatial interpolation of the agricultural and animal husbandry transition zone Perform GIS interpolation on the output value ratio of agriculture and animal husbandry in different regions by GIS spatial interpolation method to obtain contour lines or equivalent regions; The S4 further includes marking the region that meets [M 农上限， M 牧下限 ] in value, preliminarily marking as the farming-pasturing interlaced zone, and taking the geometric center of the county or the location of the county government as the center, the ratio of the farming and pasturing output value as the value, using the GIS method to interpolate, using the interpolation result to extract the contour line or the equivalent region, and screening the region that meets [M 农上限， M 牧下限 ]. S5. Data screening Screening the values of [M 农上限， M 牧下限 ] and mark the area as the farming-pasturing interlaced zone.

2. The method according to claim 1, wherein the method is characterized by: The typical agricultural dominant area in S2 is an area that has been engaged in planting industry production for a long time, and the economic activities of animal husbandry, forestry, and fishery account for a small proportion in the local economy, and the planting industry has a significant advantage.

3. The method according to claim 1, wherein the method is characterized by: The typical animal husbandry dominant area in S2 is an area that has been engaged in animal husbandry production for a long time, and the economic activities of planting industry, forestry, and fishery account for a small proportion in the local economy, and the animal husbandry has a significant advantage.

4. The method according to claim 1, wherein the method is characterized by: The selection of the typical agricultural dominant area and the typical animal husbandry dominant area in S2 should avoid the areas with agricultural and animal husbandry industrial structure adjustment.

5. The method according to claim 1, wherein the method is characterized by: The S5 also includes manually screening the areas that do not have the characteristics of agricultural and animal husbandry transition.

6. The method according to claim 1, wherein the method is characterized by: The typical agricultural dominant area in S2 is determined according to the fact that the traditional planting industry is in a dominant position, and the typical animal husbandry dominant area is determined according to the fact that the animal husbandry production is in a dominant position, and the selection of the agricultural and animal husbandry dominant areas avoids selecting the areas with agricultural and animal husbandry industrial structure adjustment.

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