Method for dividing protection areas of key leakage zones in spring areas, electronic device, and readable storage medium

Abstract

The present disclosure provides a method for dividing a protection area of a key leakage zone in a spring region, including: determining a small watershed where the key leakage zone is located, and the small watershed includes one of main valleys, river channels or depressions; determining control points on the small watershed and forming a preliminary control line based on the connection of the control points; and calibrating the preliminary control line, and the calibrated control line is the protection area control line of the key leakage zone in the spring region. The present disclosure also provides a device for dividing a protection area of a key leakage zone in a spring region, an electronic device and a readable storage medium.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of ecological environment protection, and particularly relates to a method, device, electronic device and readable storage medium for delineating a protected area of a key leakage zone of springs. Background Art

[0002] Springs are unique natural landscapes of a certain city, important carriers of profound historical and cultural heritages, and important components of historical and cultural cities. The southern mountainous area is the main recharge area of the spring basin groundwater and the source of the spring groups in the urban area of a certain city. In recent years, with the development of the city, the built-up area has continuously expanded towards the southern mountainous area. The implementation of various development and construction activities has increased the area of impervious buildings and hardened road surfaces, and artificially and compulsorily changed the original natural geographical environment with certain soil and water conservation functions, weakening the function of effectively intercepting atmospheric precipitation and surface water under natural conditions and converting surface water into groundwater through soil infiltration to conserve water sources and increase groundwater recharge. Some leakage areas have been completely occupied and hardened, and some have even become garbage dumps and sewage disposal sites, and these areas are precisely the direct recharge area and strong leakage area of the XX spring basin groundwater and the source of spring recharge. According to relevant research results, for every 1 km 3 , 2 , 3 increase in the impervious area in the direct recharge area, 250,000 m 3 less groundwater infiltration occurs, and 457,300 m 3 more surface runoff is increased. The expansion of the built-up area towards the southern mountainous area has damaged the original natural vegetation in the spring basin recharge area, increased the hardened area, and directly reduced the effective recharge of the spring basin groundwater, which has become an important factor affecting the spring flow of the urban spring groups. The key leakage zone is a limestone area. Due to geological tectonic actions, fault, fold and other tectonic types are formed. Karst fissures are dense, horizontal and vertical fractures are obvious, and karst landforms such as solution fissures, karst caves and sinkholes are well developed, forming an area with strong recharge capacity and fast recharge speed of surface water to groundwater, which is called the key leakage zone. Therefore, delineating the protected area of the key leakage zone of the urban spring basin recharge area is of great significance for ensuring the continuous gushing of springs. Summary of the Invention

[0003] In order to solve at least one of the above technical problems, the present disclosure provides a method, device, electronic device and readable storage medium for delineating a protected area of a key leakage zone of a spring basin.

[0004] According to one aspect of the present disclosure, there is provided a method for delineating a protected area of a key leakage zone of a spring basin, including:

[0005] Determine the small watershed where the key leakage zone is located, and the small watershed includes one of main valleys, rivers or depressions;

[0006] Determine control points on the small watershed, and form a preliminary control line based on the connection of the control points; and,

[0007] Calibrate the preliminary control line, and the calibrated control line is the control line for the protected area of the key leakage zone in the spring area.

[0008] According to the method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure, determining the small watershed where the key leakage zone is located includes:

[0009] Taking the main structural area of the leakage channel, the main gully or the main river channel as the core, and taking the surface water divide of the small watershed where it is located as the boundary, the formed planar interval is the range of the small watershed where the key leakage zone is located;

[0010] Among them, the method for determining the small watershed includes: converting a topographic map with a predetermined ratio into a DEM digital elevation map, and determining the small watershed based on the DEM digital elevation map.

[0011] According to the method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure, determining the small watershed where the key leakage zone is located includes:

[0012] By means of hydrogeological exploration and remote sensing geological structure interpretation, judge the lithology and the position of the main structural zone, and determine the small watershed where the key leakage zone is located based on the surface water level boundary.

[0013] According to the method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure, determining control points on the small watershed and forming a preliminary control line based on the connection of the control points includes:

[0014] Interpret several slope lines on the small watershed;

[0015] Determine several control points on each of the slope lines; and,

[0016] Connect the control points to form the preliminary control line.

[0017] According to the method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure, determining several control points on each of the slope lines includes:

[0018] For each of the slope lines, use the inflection points of the slope line that appear near the predetermined slope of the slope line as the reference control points to generate reference control points corresponding to the number of slope lines;

[0019] Among them, the method for determining the inflection point includes: taking the center of the small watershed where the strong leakage zone is located as the starting point, radiating to the surrounding mountains, using the topographic slope line as the cutting line, and taking the first point with the largest slope change starting from the bottom as the control point for dividing the protected area of the key leakage zone.

[0020] The method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure includes connecting each of the control points to form the preliminary control line, including:

[0021] Using the control points as nodes and the topographic contour lines as connection lines, the preliminary control line is formed in series.

[0022] The method for dividing the protected area of the key leakage zone in the spring area according to at least one embodiment of the present disclosure corrects the preliminary control line, including:

[0023] Correcting the preliminary control line through at least one of vegetation type, vegetation coverage, thickness of the Quaternary covering layer, and permeability;

[0024] Among them, when the thickness of the Quaternary is less than the preset thickness, the preliminary control line is the control line of the protected area;

[0025] Among them, the thickness of the Quaternary covering layer is determined by geophysical exploration or drilling, and the drilling is engineering drilling;

[0026] Among them, the indicators of vegetation type, vegetation coverage, thickness of the Quaternary covering layer, and permeability are obtained through the ARCGIG spatial overlay analysis method;

[0027] Among them, the vegetation coverage is divided into five levels: first level, second level, third level, fourth level, and fifth level, and the vegetation coverage increases with the increase of the level of the vegetation coverage level;

[0028] Among them, the level of the vegetation coverage is interpreted by establishing a remote sensing model through the NDVI vegetation index.

[0029] Among them, the preset thickness is preferably taken as 20 meters.

[0030] Among them, the vegetation coverages corresponding to the first level, second level, third level, fourth level, and fifth level of the vegetation coverage are poor, low, medium - low, medium, and high respectively.

[0031] According to another aspect of the present disclosure, there is provided a device for dividing the protected area of the key leakage zone in the spring area, including:

[0032] A small watershed determination module for determining the small watershed where the key leakage zone is located;

[0033] A preliminary control line determination module for determining the control points of the key leakage zone and forming a preliminary control line based on the connection of the control points; and,

[0034] A correction module for calibrating the preliminary control line.

[0035] According to another aspect of the present disclosure, there is provided an electronic device, including:

[0036] A memory that stores execution instructions; and,

[0037] A processor that executes the execution instructions stored in the memory, such that the processor executes the method described in any one of the above.

[0038] According to another aspect of the present disclosure, there is provided a readable storage medium having execution instructions stored therein, and when the execution instructions are executed by a processor, they are used to implement the method described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0040] Figure 1 is a flowchart of a method for dividing a protected area of a key leakage zone in a spring region according to an embodiment of the present disclosure.

[0041] Figure 2 is a flowchart of a device for dividing a protected area of a key leakage zone in a spring region according to an embodiment of the present disclosure.

[0042] Figure 3 is a schematic diagram of the location of a small watershed in a key leakage zone according to an embodiment of the present disclosure.

[0043] Figure 4 is a schematic diagram of an interpretation map of a slope control line according to an embodiment of the present disclosure.

[0044] Figure 5 is a schematic diagram of the result of demarcating a key leakage zone according to an embodiment of the present disclosure.

[0045] Explanation of Reference Numerals

[0046] 1000 Device for Dividing a Protected Area of a Key Leakage Zone in a Spring Region

[0047] 1002 Small Watershed Determination Module

[0048] 1004 Preliminary Control Line Determination Module

[0049] 1006 Correction Module

[0050] 1100 Bus

[0051] 1200 Processor

[0052] 1300 Memory

[0053] 1400 Other Circuits. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only parts related to the present disclosure are shown in the drawings.

[0055] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and embodiments.

[0056] Unless otherwise specified, the exemplary embodiments / examples shown will be understood to provide exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of various embodiments / examples can be additionally combined, separated, interchanged, and / or rearranged without departing from the technical concept of the present disclosure.

[0057] In the drawings, cross-hatching and / or shading are generally used to make the boundaries between adjacent components clear. Thus, unless stated otherwise, the presence or absence of cross-hatching or shading does not convey or imply any preference or requirement for the specific material, material properties, dimensions, proportions, commonality between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. Additionally, in the drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of the components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences can be performed in an order different from that described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. Moreover, the same reference numerals denote the same components.

[0058] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on the other component, directly connected to or directly coupled to the other component, or there may be an intermediate component. However, when the component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there is no intermediate component. For this reason, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have an intermediate component.

[0059] The terms used herein are for the purpose of describing particular embodiments and are not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are also intended to include the plural forms. Further, when the terms "comprising" and / or "including" and their variants are used in this specification, it is stated that there are the stated features, integers, steps, operations, components, parts, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about" and other similar terms are used as approximate terms and not as terms of degree, so they are used to explain the inherent deviations of measured values, calculated values and / or provided values that would be recognized by those of ordinary skill in the art.

[0060] Figure 1 is a schematic flow chart of a method for dividing the protection area of the key leakage zone in a spring region according to an embodiment of the present disclosure.

[0061] As Figure 1 shown, the method S100 for dividing the protection area of the key leakage zone in a spring region includes:

[0062] S102: Determine the small watershed where the key leakage zone is located, and the small watershed includes one of the main valleys, river channels or depressions;

[0063] S104: Determine control points on the small watershed and form a preliminary control line based on the connection of the control points; and,

[0064] S106: Calibrate the preliminary control line, and the calibrated control line is the control line of the protection area of the key leakage zone in the spring region.

[0065] Among them, determining the small watershed where the key leakage zone is located includes:

[0066] Taking the main structure area of the leakage channel, the main valley or the main river channel as the core and taking the surface water divide of the small watershed where it is located as the boundary, the formed planar interval is the scope of the small watershed where the key leakage zone is located;

[0067] Preferably, a topographic map with a predetermined scale is converted into a DEM digital elevation map, and the small watershed is determined based on the DEM digital elevation map.

[0068] Among them, the topographic map with a predetermined scale is a topographic map of 1:10000.

[0069] Among them, determining the small watershed where the key leakage zone is located includes: [[ID=3,5]]

[0070] Through technical means such as hydrogeological exploration and remote sensing geological structure interpretation, judge the lithology and the position of the main structure zone, and determine the small watershed where the key leakage zone is located based on the surface water level boundary.

[0071] Among them, control points are determined on the small watershed, and a preliminary control line is formed based on the connection of the control points, including:

[0072] Interpret several slope lines on the small watershed;

[0073] Determine several control points on each slope line; and,

[0074] Connect the control points to form a preliminary control line.

[0075] Among them, preferably, the number of slope lines is 4 to 6, and the control points of each slope line are preferably one, with a total of 4 to 6 control points.

[0076] Among them, determining several control points on each slope line includes:

[0077] For each slope line, use the inflection points of the slope line that appear near the predetermined slope of the slope line as the reference control points to generate the reference control points corresponding to the number of slope lines;

[0078] Preferably, the inflection point determination method includes: starting from the center of the small watershed where the strong leakage zone is located, radiating to the surrounding mountains, using the topographic slope line as the cutting line, and taking the first point with the largest slope change from the bottom as the control point for dividing the key leakage zone protection area. In specific implementation, from the valley to the mountain body, take the first inflection point of the slope line that appears near 10° as the reference control point.

[0079] Among them, connecting the control points to form a preliminary control line includes:

[0080] Using the control points as nodes and the topographic contour lines as connection lines to form a preliminary control line in series.

[0081] Among them, correcting the preliminary control line includes:

[0082] Correct the preliminary control line through at least one of vegetation type, vegetation coverage, thickness of the Quaternary cover layer, and permeability; generally, it is required that the thickness of the Quaternary is <20m, the vegetation type is mainly forest land, gardens, etc., and the medium and high coverage with a vegetation coverage greater than 45% is used as the condition for calibrating the control line protection area.

[0083] Among them, when the thickness of the Quaternary is less than the preset thickness, the preliminary control line is the protection area control line;

[0084] Among them, the thickness of the Quaternary cover layer is determined by geophysical exploration or drilling, and the drilling is engineering drilling;

[0085] Among them, the indicators of vegetation type, vegetation coverage, thickness of the Quaternary cover layer, and permeability are obtained through the ARCGIG spatial overlay analysis method;

[0086] Among them, vegetation plays an important role in preventing and controlling soil erosion. A remote sensing model is established through the NDVI vegetation index for interpretation. The vegetation coverage is divided into poor, low, medium - low, medium, and high, corresponding to five levels: level one, level two, level three, level four, and level five, to analyze the vegetation coverage in the region.

[0087] According to the thickness of the Quaternary covering layer and the vegetation coverage, the preliminary control line is verified, and finally the control line of the key leakage zone protection area is determined, and the area of the key leakage zone protection area is calculated.

[0088] Figure 2 It is a schematic structural diagram of a device for dividing the key leakage zone protection area of a spring region according to an embodiment of the present disclosure.

[0089] As Figure 2 shown, the device 1000 for dividing the key leakage zone protection area of a spring region includes:

[0090] A small - watershed determination module 1002 for determining the small watershed where the key leakage zone is located;

[0091] A preliminary control - line determination module 1004 for determining the control points of the key leakage zone and forming a preliminary control line based on the connection of the control points; and,

[0092] A calibration module 1006 for calibrating the preliminary control line.

[0093] Among them, determining the small watershed where the key leakage zone is located includes:

[0094] Taking the main tectonic area, main gully or main river channel of the leakage channel as the core, and taking the surface water divide of the small watershed where it is located as the boundary, the planar area formed is the scope of the small watershed where the key leakage zone is located;

[0095] Preferably, a topographic map with a predetermined ratio is converted into a DEM digital elevation map, and the small watershed is determined based on the DEM digital elevation map.

[0096] Among them, determining the small watershed where the key leakage zone is located includes:

[0097] Through technical means such as hydro - geological exploration and remote - sensing geological structure interpretation, the lithology and the position of the main tectonic zone are judged, and the small watershed where the key leakage zone is located is determined with the surface water level as the boundary.

[0098] Among them, determining the control points on the small watershed and forming a preliminary control line based on the connection of the control points includes:

[0099] Interpret several slope lines on the small watershed;

[0100] Determine several control points on each slope line; and,

[0101] Connect the control points to form a preliminary control line.

[0102] Among them, a number of control points are determined on each slope line, including:

[0103] For each slope line, the inflection points of the slope line that appear near the predetermined slope of the slope line are used as reference control points to generate reference control points corresponding to the number of slope lines;

[0104] Preferably, the method for determining the inflection point includes: starting from the center of the small watershed where the strong leakage zone is located, radiating to the surrounding mountains, using the topographic slope line as the cutting line, and taking the first point with the largest slope change from the bottom as the control point for dividing the key leakage zone protection area.

[0105] Among them, connecting the control points to form a preliminary control line includes:

[0106] Taking the control points as nodes and the topographic contour lines as connecting lines, and connecting them in series to form a preliminary control line.

[0107] Among them, correcting the preliminary control line includes:

[0108] Correct the preliminary control line through at least one of the vegetation type, vegetation coverage, thickness of the Quaternary cover layer and permeability; generally, it is required that the thickness of the Quaternary is <20m, the vegetation type is mainly forest land, gardens, etc., and the medium and high coverage rates with vegetation coverage greater than 45% are used as the conditions for calibrating the control line protection area.

[0109] Among them, when the thickness of the Quaternary is less than the preset thickness, the preliminary control line is the protection area control line;

[0110] Among them, the thickness of the Quaternary cover layer is determined by geophysical exploration or drilling, and the drilling is engineering drilling;

[0111] Among them, the indicators of vegetation type, vegetation coverage, thickness of the Quaternary cover layer and permeability are obtained through the ARCGIG spatial overlay analysis method;

[0112] Among them, the vegetation coverage is divided into first level, second level, third level, fourth level and fifth level, and the vegetation coverage increases as the level of the vegetation coverage grade increases;

[0113] Among them, the grade of vegetation coverage is interpreted by establishing a remote sensing model through the NDVI vegetation index.

[0114] Key leakage zones are areas of "surface-underground aquifer connectivity" where surface water has a strong capacity to recharge groundwater and a fast recharge rate. These areas are important water recharge channels for springs. The method for demarcating key leakage zone protection zones in spring areas provided by the present disclosure accurately demarcates key leakage zones using the key leakage zone protection zone demarcation method, enabling scientific and precise protection of springs. The method and device provided by the present disclosure are conducive to the demarcation of rigid ecological protection red lines for springs, which provide important technical support for urban development planning and famous spring protection planning.

[0115] Figure 3 It is a schematic diagram of the location of small watersheds in key leakage zones according to one embodiment of the present disclosure.

[0116] Figure 4 It is a schematic diagram of a slope control line interpretation diagram according to one embodiment of the present disclosure.

[0117] Figure 5 It is a schematic diagram of the delineation results of key leakage zones according to one embodiment of the present disclosure.

[0118] Figure 3 , Figure 4 and Figure 5 In the key leakage zone, slope control line and delineation results, the corresponding meanings of each serial number are as follows: ① main structural zone; ② surface water watershed; ③ slope control line; ④ slope control point; ⑤ control line; ⑥ terrain contour line; ⑦ key leakage zone protection line; ⑧ control point coordinate position.

[0119] According to another aspect of the present disclosure, there is provided an electronic device, including:

[0120] a memory storing execution instructions; and

[0121] The processor executes the execution instructions stored in the memory, so that the processor executes any of the above methods.

[0122] According to another aspect of the present disclosure, a readable storage medium is provided, in which execution instructions are stored. When the execution instructions are executed by a processor, they are used to implement any of the above methods.

[0123] Figure 2 The apparatus may include corresponding modules for executing each or several steps in the above flowchart. Therefore, each step or several steps in the above flowchart may be executed by a corresponding module, and the apparatus may include one or more of these modules. The modules may be one or more hardware modules specifically configured to execute the corresponding steps, or implemented by a processor configured to execute the corresponding steps, or stored in a computer-readable medium for execution by a processor, or implemented by some combination thereof.

[0124] This hardware structure can be implemented using a bus architecture. The bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the hardware and overall design constraints. Bus 1100 connects various circuits of one or more processors 1200, memory 1300, and / or hardware modules together. Bus 1100 can also connect various other circuits 1400 such as peripherals, voltage regulators, power management circuits, external antennas, etc.

[0125] Bus 1100 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Component (EISA) bus, etc. Buses can be divided into address buses, data buses, control buses, etc. For ease of representation, only one connecting line is shown in this figure, but it does not mean there is only one bus or one type of bus.

[0126] Any process or method description represented in a flowchart or described in other ways herein can be understood as representing a module, segment, or portion of code including one or more executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present disclosure includes additional implementations, where functions can be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the technical field to which the embodiments of the present disclosure belong. The processor executes the various methods and processes described above. For example, the method embodiments in the present disclosure can be implemented as a software program tangibly embodied in a machine-readable medium, such as memory. In some embodiments, part or all of the software program can be loaded and / or installed via the memory and / or communication interface. When the software program is loaded into the memory and executed by the processor, one or more steps of the methods described above can be executed. Alternatively, in other embodiments, the processor can be configured to execute one of the above methods in any other suitable way (e.g., by means of firmware).

[0127] The logic and / or steps represented in the flowchart or described in other ways herein can be embodied in any readable storage medium for use by or in connection with an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device).

[0128] For the purposes of this specification, a "readable storage medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the readable storage medium include the following: an electrical connection (electronic device) having one or more wirings, a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber device, and a portable read-only memory (CDROM). Additionally, the readable storage medium can even be paper or other suitable media on which a program can be printed, as the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other suitable processing as necessary, and then stored in a memory.

[0129] It should be understood that various parts of the present disclosure can be implemented by hardware, software, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented by software stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well-known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.

[0130] Those of ordinary skill in the art of the present technology can understand that all or part of the steps of implementing the above-described embodiments of the method can be completed by a program instructing relevant hardware. The program can be stored in a readable storage medium, and when executed, includes one or a combination of the steps of the method embodiments.

[0131] Furthermore, in each of the various embodiments of the present disclosure, the functional units can be integrated into one processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The above-described integrated modules can be implemented in the form of hardware or in the form of software functional modules. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a readable storage medium. The storage medium can be a read-only memory, a magnetic disk, an optical disk, or the like.

[0132] In the description of this specification, the descriptions referring to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of this application. In this specification, the schematic expressions of the above terms are not necessarily the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0133] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0134] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A method for dividing the protected area of the key leakage zone in a spring catchment area, characterized in that, Including: Taking the main structural area of the leakage channel, the main gully or the main river course as the core, and taking the surface water divide of the small watershed where it is located as the boundary, the planar area formed is the scope of the small watershed where the key leakage zone is located; among them, the small watershed includes one of the main gullies, river courses or depressions; moreover, a topographic map with a predetermined ratio is converted into a DEM digital elevation map, and the small watershed is determined based on the DEM digital elevation map; the topographic map with the predetermined ratio is a topographic map of 1:10,000. Determine control points on the small watershed, and form a preliminary control line based on the connection of the control points; and Calibrate the preliminary control line, and the calibrated control line is the protection control line of the key leakage zone of the spring area; Among them, determining control points on the small watershed and forming a preliminary control line based on the connection of the control points includes: interpreting several slope lines on the small watershed; determining several control points on each slope line; and connecting the control points to form the preliminary control line; among them, the number of slope lines is 4 to 6. Among them, determining several control points on each slope line includes: for each slope line, taking the inflection point of the slope line that appears near the predetermined slope of the slope line as the reference control point, and generating the reference control points corresponding to the number of slope lines; among them, the method for determining the inflection point includes: taking the center of the small watershed where the strong leakage zone is located as the starting point, radiating to the surrounding mountains, using the topographic slope line as the cutting line, and taking the first point with the largest slope change from the bottom as the control point for dividing the protection area of the key leakage zone.

2. The method for dividing the protected area of the key leakage zone in the spring region according to claim 1, characterized in that, Connecting the control points to form the preliminary control line includes: Using the control points as nodes and the topographic contour lines as connection lines to form the preliminary control line in series.

3. The method for dividing the protected area of the key leakage zone in the spring area according to claim 1, wherein Correcting the preliminary control line includes: Correcting the preliminary control line through at least one of the vegetation type, vegetation coverage, thickness of the Quaternary cover layer and permeability; Among them, when the thickness of the Quaternary is less than the preset thickness, the preliminary control line is the protection control line; Among them, the determination of the thickness of the Quaternary cover layer is obtained through geophysical exploration or drilling, and the drilling is engineering drilling; Among them, the indicators of the vegetation type, vegetation coverage, thickness of the Quaternary cover layer and permeability are obtained through the ARCGIG spatial overlay analysis method; Among them, the vegetation coverage division includes first level, second level, third level, fourth level and fifth level, and the vegetation coverage increases as the level of the vegetation coverage grade increases; Among them, the grade of the vegetation coverage is interpreted by establishing a remote sensing model through the NDVI vegetation index.

4. An electronic device, characterized in that, Including: A memory that stores execution instructions; And A processor that executes the execution instructions stored in the memory, so that the processor executes the method according to any one of claims 1 to 3.

5. A readable storage medium, characterized in that, The executable instructions are stored in the readable storage medium, and when the executable instructions are executed by the processor, they are used to implement the method according to any one of claims 1 to 3.

Images