Method, device and equipment for determining water and soil loss area reduction threshold value and medium

Abstract

The invention relates to a water and soil loss area reduction threshold determination method and device, equipment and a medium. Acquiring social influence factors and natural influence factors of the to-be-processed region; based on the natural influence factors and the social influence factors, determining a first water and soil loss area reduction threshold value of the to-be-treated region; determining a second water and soil loss area reduction threshold value of the to-be-treated region based on natural influence factors corresponding to basic units contained in the to-be-treated region; and if the difference between the first water and soil loss area reduction threshold value and the second water and soil loss area reduction threshold value is smaller than a preset difference threshold value, taking the second water and soil loss area reduction threshold value as a target water and soil loss area reduction threshold value of the to-be-treated region. Therefore, the first water and soil loss area reduction threshold value is determined through a macroscopic study and judgment mode, and the second water and soil loss area reduction threshold value is determined through a piece-by-piece resolving mode, so that the calculation precision of the water and soil loss area reduction threshold value is improved, and finally the analysis precision of the water and soil loss evaluation index is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of soil and water conservation rate analysis, and in particular to a method, device, equipment and medium for determining a threshold value for soil and water loss area reduction. Background Art

[0002] The threshold for reducing soil erosion area is the long-term threshold state of the "soil and water conservation rate" indicator. The soil and water conservation rate refers to the proportion of the area with good soil and water conservation conditions (i.e., non-soil and water erosion area) in the region to the national land area. It is a comprehensive reflection of the soil and water erosion prevention and control effects and the natural soil and water conservation function at the spatial scale.

[0003] The study found that the current situation of large-scale soil and water loss in my country has not changed fundamentally, and the task of preventing and controlling man-made soil and water loss is still arduous. Therefore, it is necessary to provide a reliable method for determining the threshold of soil and water loss area reduction, and use the threshold of soil and water loss area reduction as an evaluation index to accurately analyze the soil and water loss problem, so as to achieve the effect of accelerating the control of soil and water loss and improving the control level. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a method, device, equipment and medium for determining a soil and water loss area reduction threshold.

[0005] In a first aspect, the present disclosure provides a method for determining a threshold value for reducing soil and water loss area, the method comprising:

[0006] Obtain the social and natural influencing factors of the area to be treated;

[0007] Based on the natural influencing factors and the social influencing factors, determining a first soil and water loss area reduction threshold of the area to be processed;

[0008] Determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed;

[0009] If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold, the second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

[0010] In some embodiments of the present disclosure, the social influencing factors include one or more combinations of the following: social and economic development factors and human activity factors;

[0011] The natural influencing factors include one or more of the following combinations: soil erosion data, topography data, land use data, vegetation coverage data, meteorological and hydrological data, and soil type data.

[0012] In some embodiments of the present disclosure, determining the first soil and water loss area reduction threshold of the area to be processed based on the natural influencing factors and the social influencing factors includes:

[0013] Calculate the soil and water loss of the underlying surface of the area to be treated, and determine the soil and water loss prevention and control thresholds of the area to be treated under different underlying surfaces;

[0014] Taking the soil and water loss prevention and control thresholds under the different underlying surfaces as restriction conditions, soil and water loss analysis is performed on the natural influencing factors and the social influencing factors to obtain a first soil and water loss area reduction threshold for the area to be processed.

[0015] In some embodiments of the present disclosure, determining the second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed includes:

[0016] Performing multi-factor superposition spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed, and obtaining multi-factor superposition spatial analysis data of the area to be processed;

[0017] Compare the multi-factor superposition spatial analysis data of the area to be treated with the soil and water loss treatment intervals of different treatment types to determine the treatment type corresponding to the area to be treated;

[0018] Based on the natural influencing factors, the second soil and water loss area reduction threshold of the areas to be treated with different treatment types is determined.

[0019] In some embodiments of the present disclosure, performing multi-factor superposition spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed to obtain multi-factor superposition spatial analysis data of the area to be processed includes:

[0020] Performing multi-factor spatial analysis on the natural influencing factors corresponding to the basic units included in the area to be processed, and determining the multi-factor spatial analysis data of the basic units included in the area to be processed;

[0021] The multi-factor spatial analysis data of the basic units of the same area to be processed are superimposed to determine the multi-factor superimposed spatial analysis data of the area to be processed.

[0022] In some embodiments of the present disclosure, the governance type includes but is not limited to one or more combinations of the following:

[0023] The types that do not require governance, the types that should be governed, the types that cannot be fully governed, and the types that can be fully governed.

[0024] In some embodiments of the present disclosure, it also includes:

[0025] If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is greater than the preset difference threshold, updating the social impact factor and the natural impact factor;

[0026] According to the updated social influencing factors and the updated natural influencing factors, the first soil and water loss area reduction threshold is re-determined, and according to the updated natural influencing factors corresponding to the basic units contained in the area to be processed, the second soil and water loss area reduction threshold is re-determined, until the difference between the re-determined first soil and water loss area reduction threshold and the re-determined second soil and water loss area reduction threshold is less than the preset difference threshold, and the re-determined second soil and water loss area reduction threshold is used as the target soil and water loss area reduction threshold for the area to be processed.

[0027] In a second aspect, the present disclosure provides a device for determining a soil and water loss area reduction threshold, the device comprising:

[0028] An acquisition module is used to acquire social influencing factors and natural influencing elements of the area to be processed;

[0029] A first determination module is used to determine a first soil and water loss area reduction threshold of the area to be processed based on the natural influencing factors and the social influencing factors;

[0030] A second determination module is used to determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed;

[0031] The third determination module is used to use the second soil erosion area reduction threshold as the soil erosion area reduction threshold of the area to be processed if the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold.

[0032] In a third aspect, an embodiment of the present disclosure further provides an electronic device, the device comprising:

[0033] one or more processors;

[0034] a storage device for storing one or more programs,

[0035] When one or more programs are executed by one or more processors, the one or more processors implement the method provided in the first aspect.

[0036] In a fourth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method provided in the first aspect is implemented.

[0037] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0038] The method, device, equipment and medium for determining a soil and water loss area reduction threshold of the disclosed embodiment obtain social influencing factors and natural influencing elements of the area to be processed; determine the first soil and water loss area reduction threshold of the area to be processed based on the natural influencing elements and the social influencing elements; determine the second soil and water loss area reduction threshold of the area to be processed based on the natural influencing elements corresponding to the basic units contained in the area to be processed; if the difference between the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold is less than the preset difference threshold, the second soil and water loss area reduction threshold is used as the target soil and water loss area reduction threshold of the area to be processed. In this way, the first soil and water loss area reduction threshold is determined at the macro level by using multiple factors such as social influencing factors and natural influencing elements, and the natural influencing elements corresponding to each basic unit in the area to be processed are considered in detail to determine the second soil and water loss area reduction threshold, and the target soil and water loss area reduction threshold of the area to be processed is determined by performing a two-way mutual check on the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold. Therefore, by comprehensively analyzing various influencing factors and calculating the soil erosion area reduction threshold from multiple angles, the calculation accuracy of the soil erosion area reduction threshold is improved, so that when the soil erosion problem is accurately analyzed based on the soil erosion area reduction threshold as an evaluation indicator, the speed of soil erosion control can be accelerated and the effect of control level can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 A schematic flow chart of a method for determining a soil and water loss area reduction threshold provided in an embodiment of the present disclosure;

[0042] Figure 2 A schematic diagram of the structure of a device for determining a soil and water loss area reduction threshold provided by an embodiment of the present disclosure;

[0043] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0046] In order to provide a reliable method for determining the threshold value of soil erosion area reduction, the following Figure 1 The method for determining the threshold value of soil erosion area reduction provided by the embodiment of the present disclosure is described. In the embodiment of the present disclosure, the method for determining the threshold value of soil erosion area reduction can be performed by an electronic device. The electronic device can include a device with communication function such as a tablet computer, a desktop computer, a laptop computer, etc., and can also include a device simulated by a virtual machine or a simulator.

[0047] Figure 1 A schematic flow chart of a method for determining a soil and water loss area reduction threshold provided by an embodiment of the present disclosure is shown.

[0048] like Figure 1 As shown, the method for determining the soil and water loss area reduction threshold may include the following steps.

[0049] S110. Obtain the social factors and natural factors affecting the area to be processed.

[0050] In this embodiment, the electronic device obtains a predetermined national soil and water conservation zoning, takes the national soil and water conservation zoning as the area to be processed, and then obtains social influencing factors and natural influencing elements determined after performing spatial analysis on the area to be processed.

[0051] Among them, the national soil and water conservation zoning can include multiple first-level zones, and one or more first-level zones can be divided into multiple third-level zones according to administrative regions.

[0052] For example, the first-level regions include, but are not limited to, the Northeast Black Soil Region, the Northern Earth and Rock Mountain Region, the Northwest Loess Plateau Region, the Northern Wind and Sand Region, the Qinghai-Tibet Plateau Region, the Southwest Purple Soil Region, the Southwest Karst Region, the Southern Red Soil Region, etc. The third-level regions may include one or more municipalities, autonomous regions, autonomous counties, etc. of the first-level regions.

[0053] Among them, social impact factors refer to social factors that have a direct or indirect impact on the threshold of soil and water loss area reduction. Optionally, social impact factors include one or more of the following combinations: social and economic development factors and human activity factors.

[0054] Among them, natural influencing factors are factors at the environmental level that have a direct or indirect impact on the soil and water loss reduction threshold. Optionally, natural influencing factors include one or more of the following combinations: soil and water loss data, topographic data, land use data, vegetation coverage data, meteorological and hydrological data, and soil type data.

[0055] Optionally, the soil erosion data include data on soil erosion, mild erosion, moderate erosion, severe erosion, extremely severe erosion, severe erosion and other soil erosion occurrence conditions.

[0056] Optionally, the topographic data includes data on mountains, hills, terraces, plains and other landforms.

[0057] Optionally, the land use data includes utilization data of cultivated land, garden land, woodland, shrub land, other woodland, grassland, construction land, and other types of land.

[0058] Optionally, the vegetation coverage data includes the distribution of vegetation coverage of different levels such as woodland, shrubbery, grassland, cultivated land, garden, construction land, etc. Specifically, for the area to be processed (such as the southwestern purple soil area), the normalized difference vegetation index (MODIS) of a specific resolution is used, and the maximum synthesis algorithm is used to obtain the vegetation coverage distribution of the processing area, and then the vegetation coverage distribution is divided into multiple levels according to the regional soil and water loss dynamic monitoring standard to obtain the vegetation coverage distribution of different levels.

[0059] Optionally, the meteorological and hydrological data include temperature, rainfall, rainfall duration, rainfall level and other data.

[0060] Optionally, the soil type data include soil erosion modulus, soil loss, soil erosion intensity and other data.

[0061] S120. Determine a first soil and water loss area reduction threshold for the area to be processed based on natural influencing factors and social influencing factors.

[0062] In this embodiment, the electronic device conducts macroscopic analysis on the area to be processed based on natural influencing factors and social influencing factors to obtain a soil erosion area reduction threshold at the macro level for the area to be processed as the first soil erosion area reduction threshold.

[0063] Among them, the specific implementation method of S120 includes but is not limited to the following methods: calculating the underlying surface soil and water loss in the area to be treated, and determining the soil and water loss prevention and control thresholds of the area to be treated under different underlying surfaces; using the soil and water loss prevention and control thresholds under different underlying surfaces as restriction conditions, conducting soil and water loss analysis on natural and social influencing factors, and obtaining the first soil and water loss area reduction threshold for the area to be treated.

[0064] Specifically, the electronic equipment obtains long-term, multi-type measured research data of soil erosion in the area to be treated in the past period of time, and calculates the underlying surface soil erosion for the data to obtain the soil erosion prevention and control thresholds of the area to be treated under different underlying surfaces. Then, with the soil erosion prevention and control thresholds under different underlying surfaces as restriction conditions, soil erosion analysis of natural and social influencing factors is performed at a macro level to obtain a macro-judgment result as the first soil erosion area reduction threshold for the area to be treated.

[0065] Therefore, this embodiment combines multiple factors such as social influencing factors and natural influencing factors, and uses the soil and water loss prevention and control thresholds of different underlying surfaces as constraints to determine the first soil and water loss area reduction threshold at the macro level, thereby improving the accuracy of macro-analysis.

[0066] S130. Determine a second water and soil erosion area reduction threshold for the area to be processed based on the natural influencing factors corresponding to the basic units included in the area to be processed.

[0067] In this embodiment, the electronic device performs piece-by-piece solution on the basic units of the area to be processed according to the natural influencing factors corresponding to the basic units contained in the area to be processed, so as to determine the piece-by-piece solution data of the basic units of the area to be processed, and then accumulates the piece-by-piece solution data of the basic units to obtain the second soil erosion area reduction threshold of the area to be processed.

[0068] Among them, the specific implementation method of S130 includes but is not limited to the following methods: S1301. Perform multi-factor superposition spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed, and obtain multi-factor superposition spatial analysis data of the area to be processed; S1302. Compare the multi-factor superposition spatial analysis data of the area to be processed with the soil and water loss control intervals of different control types to determine the control type corresponding to the area to be processed; S1303. Determine the second soil and water loss area reduction threshold of the area to be processed with different control types based on the natural influencing factors.

[0069] Among them, the specific implementation method of S1301 is not limited to the following methods: performing multi-factor spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed, and determining the multi-factor spatial analysis data of the basic units contained in the area to be processed; superimposing the multi-factor spatial analysis data of the basic units of the same area to be processed, and determining the multi-factor superimposed spatial analysis data of the area to be processed.

[0070] Specifically, for S1301, the electronic device inputs the natural influencing factors corresponding to the basic units contained in the area to be processed into a multi-factor superposition spatial analysis software (such as ArcGIS software), and uses the software to analyze the natural influencing factors corresponding to the basic units contained in the area to be processed one by one, so as to realize multi-factor spatial analysis and obtain multi-factor spatial analysis data. Then, the software is continued to be used to superimpose the multi-factor spatial analysis data of the basic units of the same area to be processed to obtain the multi-factor superposition spatial analysis data of the area to be processed.

[0071] Specifically, for S1302, the electronic device obtains predetermined soil and water loss control intervals of different control types, and determines in which control type the soil and water loss control interval the multi-factor superposition spatial analysis data of the area to be processed is located by comparing it with the soil and water loss control intervals of different control types, thereby determining the control type corresponding to the area to be processed.

[0072] Specifically, for S1303, the electronic device will export the governance type determined by the multi-factor superposition spatial analysis software (for example, export to Excel software), and perform statistical analysis based on natural influencing factors to determine the second soil erosion area reduction threshold for the area to be treated with different governance types.

[0073] Optionally, the governance type includes but is not limited to one or more of the following combinations: a type that does not require governance, a type that should be governed, a type that cannot be fully governed, and a type that can be fully governed.

[0074] Among them, the type that does not need to be managed refers to the situation where soil erosion has no adverse effects or has little impact on regional production, life and ecology, and no special management is required, and it is difficult to naturally restore and eliminate the soil erosion problem. Optional areas that do not need to be managed include sparsely populated areas in high-cold and high-altitude areas; existing soil erosion areas in concentrated and continuous deserts, Gobi and some sandy lands; existing soil erosion areas with fragmented distribution on the surface dominated by concentrated and continuous exposed bedrock.

[0075] The types that need to be managed refer to the adverse effects of soil erosion on regional production, life and ecology, which require targeted prevention and management measures. Specifically, the sum of the areas of soil erosion that do not need to be managed and the areas of soil erosion that should be managed is equal to the total area of ​​existing soil erosion.

[0076] Among them, the type that cannot be completely controlled refers to the area of ​​soil erosion that should be controlled, but due to natural, economic, and technical limitations, the soil erosion intensity cannot be completely controlled below mild after control. Optional areas of the type that cannot be completely controlled include areas with existing types of sloping farmland and gardens in the hilly or mountainous areas of Northeast China, Northwest China, Southwest China, North China, etc.; areas with existing medium and low-coverage forest and grassland under the steep slopes and valley terrain in the hilly areas of North China, Southwest China, and Southeast China; areas of mixed hydraulic and gravity erosion on the steep slopes of the gullies of the Loess Plateau in the northwest; fixed sand land and desert edges in the arid areas of the northwest, transition zones between oases and deserts, along rivers and lakes, and important transportation and water conservancy facilities.

[0077] Among them, the completely controllable type refers to the area where the soil erosion intensity can be controlled to below mild after comprehensive prevention and control according to local conditions and classified measures. Specifically, the sum of the soil erosion area of ​​the type that cannot be completely controlled and the soil erosion area of ​​the type that can be completely controlled is equal to the total area of ​​soil erosion that should be controlled.

[0078] Therefore, this embodiment processes the natural influencing factors corresponding to each basic unit in the area to be processed by solving them piece by piece, so as to determine different governance types and determine the second soil erosion area reduction threshold of the area to be processed of different governance types, so as to achieve more accurate determination of the soil erosion area reduction threshold based on finer-grained natural influencing factors.

[0079] S140: If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold, the second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

[0080] In this embodiment, the electronic device compares the first soil erosion area reduction threshold determined by the macro-judgment method with the second soil erosion area reduction threshold determined by the piece-by-piece solution method, determines the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold, and then determines whether the difference is less than the preset difference threshold. If the difference is less than the preset difference threshold, it means that the second soil erosion area reduction threshold determined by the piece-by-piece solution method has a higher accuracy, and the second soil erosion area reduction threshold can be directly used as the target soil erosion area reduction threshold for the area to be processed.

[0081] The preset difference threshold refers to a value used to evaluate whether the result determined by the piece-by-piece solution is reasonable. Optionally, the preset difference threshold can be predetermined based on experience.

[0082] A method for determining a soil and water loss area reduction threshold in an embodiment of the present disclosure obtains social influencing factors and natural influencing elements of a region to be processed; based on the natural influencing elements and social influencing elements, a first soil and water loss area reduction threshold in the region to be processed is determined; based on the natural influencing elements corresponding to the basic units contained in the region to be processed, a second soil and water loss area reduction threshold in the region to be processed is determined; if the difference between the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold is less than a preset difference threshold, the second soil and water loss area reduction threshold is used as a target soil and water loss area reduction threshold in the region to be processed. In this way, the first soil and water loss area reduction threshold is determined at a macro level using multiple factors such as social influencing factors and natural influencing elements, and the natural influencing elements corresponding to each basic unit in the region to be processed are further considered to determine the second soil and water loss area reduction threshold, and the target soil and water loss area reduction threshold in the region to be processed is determined by performing a two-way mutual check on the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold. Therefore, by comprehensively analyzing various influencing factors and calculating the soil erosion area reduction threshold from multiple angles, the calculation accuracy of the soil erosion area reduction threshold is improved, so that when the soil erosion problem is accurately analyzed based on the soil erosion area reduction threshold as an evaluation indicator, the speed of soil erosion control can be accelerated and the effect of control level can be improved.

[0083] In this embodiment, the method also includes: if the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is greater than a preset difference threshold, then updating the social influencing factors and the natural influencing factors; redetermining the first soil erosion area reduction threshold based on the updated social influencing factors and the updated natural influencing factors, and redetermining the second soil erosion area reduction threshold based on the updated natural influencing factors corresponding to the basic units contained in the area to be processed, until the difference between the redetermined first soil erosion area reduction threshold and the redetermined second soil erosion area reduction threshold is less than the preset difference threshold, and the redetermined second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

[0084] Specifically, if the electronic device determines that the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is greater than the preset difference threshold, it means that the accuracy of the second soil erosion area reduction threshold determined by the piece-by-piece solution method is low, then the electronic device updates the natural influencing factors. In order to further improve the accuracy of the first soil erosion area reduction threshold determined based on the macro-judgment method, it is also necessary to update the social influencing factors. The electronic device continues to use the macro-judgment method to process the updated social influencing factors and the updated natural influencing factors, and re-determines the first soil erosion area reduction threshold. At the same time, the electronic device continues to use the piece-by-piece solution method to process the updated natural influencing factors corresponding to the basic units contained in the processed area, and re-determines the second soil erosion area reduction threshold until the difference between the re-determined first soil erosion area reduction threshold and the re-determined second soil erosion area reduction threshold is less than the preset difference threshold, indicating that the re-determined second soil erosion area reduction threshold has a high accuracy, and the re-determined second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

[0085] In this way, the threshold value for reducing the area of ​​soil and water loss is determined by adopting a cyclic iteration method, thereby improving the reliability of determining the threshold value for reducing the area of ​​soil and water loss.

[0086] The present disclosure also provides a device for determining a soil and water loss area reduction threshold value for implementing the above-mentioned method for determining a soil and water loss area reduction threshold value. Figure 2 In the disclosed embodiment, the device for determining the threshold value of soil erosion area reduction may be an electronic device. The electronic device may include a tablet computer, a desktop computer, a laptop computer, or other device with communication functions, or may include a virtual machine or a device simulated by a simulator.

[0087] Figure 2 A schematic structural diagram of a device for determining a soil and water loss area reduction threshold provided by an embodiment of the present disclosure is shown.

[0088] like Figure 2 As shown, the water and soil erosion area reduction threshold determination device 200 may include:

[0089] An acquisition module 210 is used to acquire social influencing factors and natural influencing elements of the area to be processed;

[0090] A first determination module 220 is used to determine a first soil and water loss area reduction threshold of the area to be processed based on the natural influencing factors and the social influencing factors;

[0091] A second determination module 230 is used to determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed;

[0092] The third determination module 240 is used to use the second soil erosion area reduction threshold as the soil erosion area reduction threshold of the area to be processed if the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold.

[0093] A device for determining a soil and water loss area reduction threshold in an embodiment of the present disclosure obtains social influencing factors and natural influencing elements of a region to be processed; based on the natural influencing elements and social influencing elements, a first soil and water loss area reduction threshold of the region to be processed is determined; based on the natural influencing elements corresponding to the basic units contained in the region to be processed, a second soil and water loss area reduction threshold of the region to be processed is determined; if the difference between the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold is less than a preset difference threshold, the second soil and water loss area reduction threshold is used as the target soil and water loss area reduction threshold of the region to be processed. In this way, the first soil and water loss area reduction threshold is determined at a macro level using multiple factors such as social influencing factors and natural influencing elements, and the natural influencing elements corresponding to each basic unit in the region to be processed are considered in detail to determine the second soil and water loss area reduction threshold, and the target soil and water loss area reduction threshold of the region to be processed is determined by performing a two-way mutual check on the first soil and water loss area reduction threshold and the second soil and water loss area reduction threshold. Therefore, by comprehensively analyzing various influencing factors and calculating the soil erosion area reduction threshold from multiple angles, the calculation accuracy of the soil erosion area reduction threshold is improved, so that when the soil erosion problem is accurately analyzed based on the soil erosion area reduction threshold as an evaluation indicator, the speed of soil erosion control can be accelerated and the effect of control level can be improved.

[0094] In some embodiments of the present disclosure, the social influencing factors include one or more combinations of the following: social and economic development factors and human activity factors;

[0095] The natural influencing factors include one or more of the following combinations: soil erosion data, topography data, land use data, vegetation coverage data, meteorological and hydrological data, and soil type data.

[0096] In some embodiments of the present disclosure, the first determining module 220 includes:

[0097] A calculation unit, used to calculate the soil and water loss of the underlying surface of the area to be processed, and determine the soil and water loss prevention and control thresholds of the area to be processed under different underlying surfaces;

[0098] The first analysis unit is used to perform soil and water loss analysis on the natural influencing factors and the social influencing factors based on the soil and water loss prevention and control thresholds under the different underlying surfaces as restriction conditions, and obtain a first soil and water loss area reduction threshold for the area to be processed.

[0099] In some embodiments of the present disclosure, the second determination module 230 includes:

[0100] The second analysis unit is used to perform multi-factor superposition spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed, so as to obtain multi-factor superposition spatial analysis data of the area to be processed;

[0101] A comparison unit, used to compare the multi-factor superposition spatial analysis data of the area to be processed with the soil and water loss control intervals of different control types, and determine the control type corresponding to the area to be processed;

[0102] The determination unit is used to determine the second soil and water loss area reduction threshold of the to-be-treated area of ​​different treatment types according to the natural influencing factors.

[0103] In some embodiments of the present disclosure, the second analysis unit is specifically used to:

[0104] Performing multi-factor spatial analysis on the natural influencing factors corresponding to the basic units included in the area to be processed, and determining the multi-factor spatial analysis data of the basic units included in the area to be processed;

[0105] The multi-factor spatial analysis data of the basic units of the same area to be processed are superimposed to determine the multi-factor superimposed spatial analysis data of the area to be processed.

[0106] In some embodiments of the present disclosure, the governance type includes but is not limited to one or more combinations of the following:

[0107] The types that do not require governance, the types that should be governed, the types that cannot be fully governed, and the types that can be fully governed.

[0108] In some embodiments of the present disclosure, the device further includes:

[0109] a fourth determination module, configured to update social influencing factors and natural influencing factors if the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is greater than the preset difference threshold;

[0110] According to the updated social influencing factors and the updated natural influencing factors, the first soil and water loss area reduction threshold is re-determined, and according to the updated natural influencing factors corresponding to the basic units contained in the area to be processed, the second soil and water loss area reduction threshold is re-determined, until the difference between the re-determined first soil and water loss area reduction threshold and the re-determined second soil and water loss area reduction threshold is less than the preset difference threshold, and the re-determined second soil and water loss area reduction threshold is used as the target soil and water loss area reduction threshold for the area to be processed.

[0111] It should be noted that Figure 2 The water and soil erosion area reduction threshold determination device 200 shown can be executed Figure 1 The various steps in the method embodiment shown in the figure are implemented Figure 1 The various processes and effects in the method embodiment shown are not described in detail here.

[0112] Figure 3 A schematic structural diagram of an electronic device provided by an embodiment of the present disclosure is shown.

[0113] like Figure 3 As shown, the electronic device may include a processor 301 and a memory 302 storing computer program instructions.

[0114] Specifically, the processor 301 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0115] The memory 302 may include a large capacity memory for information or instructions. By way of example and not limitation, the memory 302 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory 302 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 302 may be inside or outside the integrated gateway device. In a particular embodiment, the memory 302 is a non-volatile solid-state memory. In a particular embodiment, the memory 302 includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (Electrically Erasable Programmable ROM, EEPROM), an electrically rewritable ROM (EAROM) or a flash memory, or a combination of two or more of these.

[0116] The processor 301 reads and executes the computer program instructions stored in the memory 302 to perform the steps of the method for determining the soil and water loss area reduction threshold provided in the embodiment of the present disclosure.

[0117] In one example, the electronic device may further include a transceiver 303 and a bus 304. Figure 3 As shown, the processor 301, the memory 302 and the transceiver 303 are connected via a bus 304 and communicate with each other.

[0118] The bus 304 includes hardware, software, or both. For example, but not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industrial Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a Memory bus, a MicroChannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses or a combination of two or more of these. Where appropriate, the bus 304 may include one or more buses. Although embodiments of the present application describe and illustrate a particular bus, the present application contemplates any suitable bus or interconnect.

[0119] The following is an embodiment of a computer-readable storage medium provided in an embodiment of the present disclosure. The computer-readable storage medium and the method for determining the threshold value for reducing soil and water loss area in the above-mentioned embodiments belong to the same inventive concept. For details not described in detail in the embodiment of the computer-readable storage medium, reference can be made to the embodiment of the method for determining the threshold value for reducing soil and water loss area in the above-mentioned embodiments.

[0120] This embodiment provides a storage medium containing computer executable instructions. When the computer executable instructions are executed by a computer processor, they are used to execute a method for determining a soil and water loss area reduction threshold. The method includes:

[0121] Obtain the social and natural influencing factors of the area to be treated;

[0122] Based on the natural influencing factors and the social influencing factors, determining a first soil and water loss area reduction threshold of the area to be processed;

[0123] Determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed;

[0124] If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold, the second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

[0125] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present disclosure is not limited to the above method operations, and the computer executable instructions can also execute the relevant operations in the method for determining the soil and water loss area reduction threshold provided in any embodiment of the present disclosure.

[0126] Through the above description of the implementation methods, the technicians in the relevant field can clearly understand that the present disclosure can be implemented by means of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present disclosure can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions to enable a computer cloud platform (which can be a personal computer, a server, or a network cloud platform, etc.) to execute the soil and water loss area reduction threshold determination method provided by each embodiment of the present disclosure.

[0127] Note that the above are only preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art will understand that the present disclosure is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present disclosure. Therefore, although the present disclosure is described in more detail through the above embodiments, the present disclosure is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present disclosure, and the scope of the present disclosure is determined by the scope of the appended claims.

Claims

1. A method for determining a threshold value for reduction in soil and water loss area, characterized in that: include: Obtain the social and natural influencing factors of the area to be treated; Based on the natural influencing factors and the social influencing factors, determining a first soil and water loss area reduction threshold of the area to be processed; Determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed; If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold, the second soil erosion area reduction threshold is used as the target soil erosion area reduction threshold for the area to be processed.

2. The method according to claim 1, characterized in that The social influencing factors include one or more of the following: social and economic development factors and human activity factors; The natural influencing factors include one or more of the following combinations: soil erosion data, topography data, land use data, vegetation coverage data, meteorological and hydrological data, and soil type data.

3. The method according to claim 1, characterized in that: The determining of a first water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors and the social influencing factors includes: Calculate the soil and water loss of the underlying surface of the area to be treated, and determine the soil and water loss prevention and control thresholds of the area to be treated under different underlying surfaces; Taking the soil and water loss prevention and control thresholds under the different underlying surfaces as restriction conditions, soil and water loss analysis is performed on the natural influencing factors and the social influencing factors to obtain the first soil and water loss area reduction threshold of the area to be processed.

4. The method according to claim 1, characterized in that: The determining of the second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed respectively comprises: Performing multi-factor superposition spatial analysis on the natural influencing factors corresponding to the basic units contained in the area to be processed, and obtaining multi-factor superposition spatial analysis data of the area to be processed; Compare the multi-factor superposition spatial analysis data of the area to be treated with the soil and water loss treatment intervals of different treatment types to determine the treatment type corresponding to the area to be treated; Based on the natural influencing factors, the second soil and water loss area reduction threshold of the areas to be treated with different treatment types is determined.

5. The method according to claim 4, characterized in that The multi-factor superposition spatial analysis is performed on the natural influencing factors corresponding to the basic units contained in the area to be processed to obtain the multi-factor superposition spatial analysis data of the area to be processed, including: Performing multi-factor spatial analysis on the natural influencing factors corresponding to the basic units included in the area to be processed, and determining the multi-factor spatial analysis data of the basic units included in the area to be processed; The multi-factor spatial analysis data of the basic units of the same area to be processed are superimposed to determine the multi-factor superimposed spatial analysis data of the area to be processed.

6. The method according to claim 4, characterized in that The governance types include but are not limited to one or a combination of the following: The types that do not require governance, the types that should be governed, the types that cannot be fully governed, and the types that can be fully governed.

7. The method according to claim 1, characterized in that Also includes: If the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is greater than the preset difference threshold, updating the social impact factor and the natural impact factor; According to the updated social influencing factors and the updated natural influencing factors, the first soil and water loss area reduction threshold is re-determined, and according to the updated natural influencing factors corresponding to the basic units contained in the area to be processed, the second soil and water loss area reduction threshold is re-determined, until the difference between the re-determined first soil and water loss area reduction threshold and the re-determined second soil and water loss area reduction threshold is less than the preset difference threshold, and the re-determined second soil and water loss area reduction threshold is used as the target soil and water loss area reduction threshold for the area to be processed.

8. A device for determining a threshold value for reduction in soil and water loss area, characterized in that: include: An acquisition module is used to acquire social influencing factors and natural influencing elements of the area to be processed; A first determination module is used to determine a first soil and water loss area reduction threshold of the area to be processed based on the natural influencing factors and the social influencing factors; A second determination module is used to determine a second water and soil erosion area reduction threshold of the area to be processed based on the natural influencing factors corresponding to the basic units contained in the area to be processed; The third determination module is used to use the second soil erosion area reduction threshold as the soil erosion area reduction threshold of the area to be processed if the difference between the first soil erosion area reduction threshold and the second soil erosion area reduction threshold is less than a preset difference threshold.

9. An electronic device, characterized in that: include: processor; A memory for storing executable instructions; The processor is used to read the executable instructions from the memory and execute the executable instructions to implement the method described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the processor implements the method according to any one of claims 1 to 7.

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