Method, device, medium and equipment for evaluating bearing capacity of mountain vegetation in arid region

Abstract

The invention provides an arid region mountain vegetation bearing capacity assessment method and device, a medium and equipment, and the method comprises the steps: obtaining the rainfall capacity, the soil water quantity and the underground runoff capacity of a sample site in a monitoring time period, the underground runoff volume comprises the upper boundary runoff volume and the lower boundary runoff volume of a bedrock weathered layer corresponding to the sample site; estimating the total amount of absorbable water according to the rainfall, the soil water amount and the underground runoff; and according to the total absorbable water amount and the vegetation water demand corresponding to the vegetation, generating a corresponding vegetation bearing capacity evaluation result. According to the method, a total moisture mode is integrated, thin film water and weathered debris water storage in soil are comprehensively considered, a method system for evaluating the vegetation bearing capacity of the mountain land is provided, total moisture dynamic modes of different soil types can be accurately captured, a vegetation bearing capacity evaluation result is obtained, and scientific and technological support is provided for ecological restoration, vegetation configuration and water resource management of an arid region.

Description

Technical Field

[0001] The present invention relates to the field of exploration, and in particular to a method, device, medium and equipment for evaluating the carrying capacity of mountain vegetation in arid areas. Background Art

[0002] In arid mountain ecosystems, water is a key factor limiting vegetation growth and stability. Traditional methods for assessing vegetation carrying capacity often use simplified water balance models, which only consider precipitation and soil capillary water. These models fail to fully account for vegetation's dependence on water under extremely arid conditions, particularly the impacts of film water and water stored in weathered debris on plant physiological activities.

[0003] Because existing assessment technologies often ignore the impact of film water and weathered debris water storage on plant physiological activities, it is difficult to comprehensively and accurately assess the carrying capacity of mountain vegetation in arid areas, affecting the accuracy of subsequent plan formulation. Summary of the Invention

[0004] The purpose of the present invention is to provide a method, device, medium and equipment for evaluating the carrying capacity of mountain vegetation in arid areas to improve the above-mentioned problems.

[0005] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0006] In a first aspect, an embodiment of the present invention provides a method for assessing the carrying capacity of mountain vegetation in an arid area, the method comprising:

[0007] Obtaining rainfall, soil moisture, and underground runoff at a sample location during the monitoring period, wherein the sample location is a location within the study area with a slope greater than a preset slope value, and the underground runoff includes the upper boundary runoff and the lower boundary runoff of the bedrock weathering layer corresponding to the sample location;

[0008] estimating the total amount of absorbable water based on the rainfall, the soil water content, and the underground runoff;

[0009] According to the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, a corresponding vegetation carrying capacity assessment result is generated.

[0010] Optionally, estimating the total amount of absorbable water based on the rainfall, the soil moisture, and the underground runoff includes:

[0011] differentiating the soil water content to determine capillary water content and membrane water content;

[0012] Determining the water storage capacity of the bedrock weathering layer according to the upper boundary runoff volume and the lower boundary runoff volume;

[0013] The total amount of absorbable water is estimated based on the capillary water volume, the membrane water volume, the water storage capacity of the bedrock weathering layer, and the rainfall.

[0014] Optionally, estimating the total amount of absorbable water based on the capillary water volume, the membrane water volume, the water storage capacity of the bedrock weathering layer, and the rainfall includes:

[0015] The capillary water volume, the membrane water volume, the bedrock weathering layer water storage volume and the rainfall are weighted and calculated in combination with corresponding weighting coefficients to determine the total amount of absorbable water.

[0016] Optionally, the formula for the total amount of absorbable water is:

[0017] θ′=ω1×α+ω2×β+ω3×φ+ω4×δ

[0018] Among them, θ′ represents the total amount of absorbable water, α represents the rainfall, β represents the capillary water, φ represents the film water, δ represents the water storage capacity of the bedrock weathering layer, ω1 represents the rainfall weight coefficient, ω2 represents the capillary water weight coefficient, ω3 represents the film water weight coefficient, and ω4 represents the weathering layer weight coefficient.

[0019] Optionally, before generating the corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, the method further includes:

[0020] The water requirement of the vegetation is determined according to the basic vegetation coefficient, the surface soil evaporation coefficient and the reference evapotranspiration corresponding to the vegetation.

[0021] Optionally, the vegetation water requirement is calculated as follows:

[0022] ET a =(K cb +K e )ET0

[0023]

[0024] Among them, ET a represents the water requirement of the vegetation, K cb Represents the basic vegetation coefficient, K e represents the surface soil evaporation coefficient, ET0 represents the reference evaporation, Δ represents the slope of the water vapor pressure curve, R n represents net radiation, G represents soil heat flux, γ represents the dry-wet constant, T a Indicates the temperature at the preset height, U indicates the wind speed at the preset height, e s -e a Represents the water vapor pressure difference.

[0025] Optionally, after generating a corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, the method further includes:

[0026] Target vegetation types are selected based on the vegetation carrying capacity assessment results corresponding to various vegetation types;

[0027] Based on the vegetation carrying capacity assessment results corresponding to the target vegetation types, the vegetation configuration plan and planting density in the study area are determined.

[0028] In a second aspect, an embodiment of the present invention provides a device for assessing the carrying capacity of mountain vegetation in an arid area, the device comprising:

[0029] a first processing unit, configured to obtain rainfall, soil moisture, and underground runoff at a sample location during a monitoring period, wherein the sample location is a location within the study area with a slope greater than a preset slope value, and the underground runoff includes an upper boundary runoff and a lower boundary runoff of a bedrock weathering layer corresponding to the sample location;

[0030] The first processing unit is further configured to estimate the total amount of absorbable water based on the rainfall, the soil moisture, and the runoff;

[0031] The second processing unit is used to generate a corresponding vegetation carrying capacity assessment result according to the total amount of absorbable water and the vegetation water demand corresponding to the vegetation.

[0032] In a third aspect, an embodiment of the present invention provides a storage medium having a computer program stored thereon, which implements the above method when executed by a processor.

[0033] In a fourth aspect, an embodiment of the present invention provides an electronic device, comprising: a processor and a memory, wherein the memory is used to store one or more programs; when the one or more programs are executed by the processor, the above method is implemented.

[0034] Compared with the existing technology, the embodiment of the present invention provides a method, device, medium and equipment for assessing the carrying capacity of mountain vegetation in arid areas, including: obtaining the rainfall, soil moisture and underground runoff at the sample site during the monitoring period, wherein the sample site is a site with a slope greater than a preset slope value within the study area, and the underground runoff includes the upper boundary runoff and the lower boundary runoff of the bedrock weathering layer corresponding to the sample site; estimating the total amount of absorbable water based on the rainfall, soil moisture and underground runoff; generating the corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the vegetation water demand corresponding to the vegetation. It integrates the full moisture model, comprehensively considers the film water and weathered debris water storage in the soil, and proposes a method system for evaluating the carrying capacity of mountain vegetation. It can accurately capture the full moisture dynamic model of different soil types, obtain vegetation carrying capacity assessment results, and provide scientific and technological support for ecological restoration, vegetation configuration and water resource management in arid areas.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A schematic structural diagram of an electronic device provided by an embodiment of the present invention.

[0038] Figure 2 This is a flow chart of a method for assessing the carrying capacity of mountain vegetation in arid areas provided by an embodiment of the present invention.

[0039] Figure 3 This is a second flow chart of a method for assessing the carrying capacity of mountain vegetation in arid areas according to an embodiment of the present invention.

[0040] Figure 4 This is a third flow chart of a method for assessing the carrying capacity of mountain vegetation in arid areas according to an embodiment of the present invention.

[0041] Figure 5 A schematic diagram of the units of the device for assessing the carrying capacity of mountain vegetation in arid areas provided by an embodiment of the present invention.

[0042] In the figure: 10 - processor; 11 - memory; 12 - bus; 13 - communication interface; 701 - first processing unit; 702 - second processing unit. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0048] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0050] Research has found that weathered debris in the soil parent material layer can store a certain amount of water for plant absorption and utilization. Especially under drought conditions, the water absorbed by plants comes from weathered debris deep in the soil. Weathered debris in the parent material layer stores a portion of the water available to plants. Therefore, film water and weathered debris water storage provide additional water sources for plants to withstand drought during the dry season. However, due to limitations in observation and modeling techniques, data and related research on film water and weathered debris water storage are very scarce.

[0051] To this end, an embodiment of the present invention provides a method for evaluating the carrying capacity of mountain vegetation in arid areas, which integrates the full moisture model, comprehensively considers the film water and weathered debris water storage in the soil, and proposes a method system for evaluating the carrying capacity of mountain vegetation. It can accurately capture the full moisture dynamic model of different soil types, evaluate the response of vegetation to moisture, and determine a reasonable vegetation optimization configuration plan, providing scientific and technological support for ecological restoration, vegetation configuration and water resource management in arid areas.

[0052] The embodiment of the present invention provides an electronic device, which can be a mobile phone device, a computer device, a server device, etc. Figure 1 , a schematic diagram of the structure of an electronic device. The electronic device includes a processor 10, a memory 11, and a bus 12. The processor 10 and the memory 11 are connected via the bus 12. The processor 10 is used to execute executable modules stored in the memory 11, such as computer programs.

[0053] The processor 10 can be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the method for assessing the carrying capacity of mountain vegetation in arid areas can be completed by the hardware integrated logic circuit in the processor 10 or the instructions in the form of software. The above-mentioned processor 10 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0054] The memory 11 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory.

[0055] The bus 12 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. Figure 1 Only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus 12 or one type of bus 12.

[0056] The memory 11 is used to store programs, such as a program corresponding to the device for assessing the carrying capacity of mountain vegetation in arid regions. The device includes at least one software functional module, which can be stored in the memory 11 in the form of software or firmware, or embedded in the operating system (OS) of the electronic device. Upon receiving an execution instruction, the processor 10 executes the program to implement the method for assessing the carrying capacity of mountain vegetation in arid regions.

[0057] Possibly, the electronic device provided by the embodiment of the present invention further includes a communication interface 13. The communication interface 13 is connected to the processor 10 via a bus.

[0058] It should be understood that Figure 1The structure shown is only a schematic diagram of a portion of the electronic device. The electronic device may also include Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown. Figure 1 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0059] The embodiment of the present invention provides a method for evaluating the carrying capacity of mountain vegetation in arid areas, which can be applied to, but is not limited to, Figure 1 For detailed procedures, please refer to the electronic equipment shown in Figure 2 ,The assessment methods for mountain vegetation carrying capacity in arid areas include: S10, S20 and S40, which are described as follows.

[0060] S10, obtaining the rainfall, soil water content, and underground runoff at the sample location during the monitoring period.

[0061] Among them, the sample location is an area within the study area with a slope greater than the preset slope value (which can be but is not limited to 8°) and a single vegetation type. The area can be but is not limited to 100M×100M. The underground runoff includes the upper boundary runoff and lower boundary runoff of the bedrock weathering layer corresponding to the sample location.

[0062] In the embodiment of the present invention, areas with annual rainfall less than a rainfall threshold may be considered drought areas. The rainfall threshold may be, but is not limited to, 200 mm.

[0063] Optionally, a rain gauge is installed at the sample site to obtain rainfall; a soil moisture sensor group (such as TDR or FDR) is arranged between the soil surface and the upper boundary of the bedrock weathering layer at the sample site to obtain the soil water content corresponding to the sample site. The collection period of the soil moisture sensor group can be but is not limited to 1 hour; a runoff area is constructed at the sample site to monitor the underground runoff volume at the sample site.

[0064] In an optional embodiment, the monitoring period can be 1 month, a quarter, a complete growing season, a year, etc.

[0065] S20, estimate the total amount of water that can be absorbed based on rainfall, soil water content, and groundwater runoff.

[0066] It should be understood that soil water includes membrane water, and underground runoff is related to the water storage capacity of the bedrock weathering layer.

[0067] S40: Generate a corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand of the vegetation.

[0068] In the method for assessing the carrying capacity of mountain vegetation in arid areas provided in an embodiment of the present invention, a full moisture model is integrated, and the film water and weathered debris water storage in the soil are comprehensively considered. A method system for evaluating the carrying capacity of mountain vegetation is proposed, which can accurately capture the full moisture dynamic model of different soil types and obtain vegetation carrying capacity assessment results, providing scientific and technological support for ecological restoration, vegetation configuration and water resource management in arid areas.

[0069] Optionally, the calculation formula for the vegetation carrying capacity assessment result is:

[0070]

[0071] Among them, ε represents the evaluation result of vegetation carrying capacity, θ′ represents the total amount of water that can be absorbed, and ET a Indicates the water demand of vegetation.

[0072] Based on the above, regarding the content of S20, the embodiment of the present invention also provides an optional implementation method, which is referred to below. S20, estimating the total amount of absorbable water based on rainfall, soil moisture, and underground runoff, includes: S21, S22, and S23, as follows.

[0073] S21, differentiate soil water to determine capillary water and membrane water.

[0074] Alternatively, the full soil moisture range model can systematically simulate soil moisture dynamics from saturated to extremely dry conditions, encompassing the migration of capillary and film water in the soil and effectively distinguishing between capillary and film water in the soil. Therefore, the full soil moisture range model can be used to distinguish soil water content to determine capillary and film water content.

[0075] Optionally, based on the collected soil water data, the Richards equation is used to simulate the one-dimensional unsteady-state movement process of soil water in the vertical direction to obtain the soil water migration flux.

[0076] The capillary water migration process is described by the van Genuchten (VG) model, while the water migration process of the entire water content range (including capillary water and film water) is expressed by the full-range soil hydraulic model.

[0077] The membrane water volume is obtained by subtracting the soil water transfer flux obtained by simulating the soil water volume in the complete range of the soil hydraulic model from the soil water transfer flux obtained by simulating the soil water volume in the VG model, thereby realizing the distinction between capillary water volume and membrane water volume.

[0078] The one-dimensional vertical soil moisture migration flux Richards equation is as follows:

[0079]

[0080] Where θ is the volumetric water content (cm 3 / cm 3 ), which is the soil water content at the sample site during the monitoring period; t is time (d); z is the spatial coordinate (cm); K(h) is the unsaturated hydraulic conductivity of the soil (cm / d); and h is the pressure head (cm).

[0081] The VG model is used to describe soil capillary water transport:

[0082]

[0083] Where S e is the effective saturation, which describes the proportion of mobile water in the soil; θ(h) is the volumetric water content of the soil under the matrix potential h (cm 3 / cm 3 );θ r is the residual volume water content of soil (cm 3 / cm 3 );θ s is the saturated volumetric water content of soil (cm 3 / cm 3 ); K(h) is the unsaturated hydraulic conductivity of soil (cm / min), K s is the saturated hydraulic conductivity of the soil (cm / min); h is the pressure head (cm); b is a parameter related to the air intake suction (1 / cm); m and n are empirical fitting parameters (parameters related to the soil pore distribution); L is an empirical parameter and can be taken as 0.5.

[0084] A comprehensive soil hydraulic model is used to simulate the transport mechanisms of capillary and membrane water, simulating the dynamics of water from saturation to near-zero water content. By reconstructing the saturation function and hydraulic conductivity formula, the transport mechanisms of capillary and membrane water in the soil are uniformly expressed, improving simulation accuracy under low-water conditions without introducing additional parameters. A notable feature of this model is that as the water potential approaches h, the soil moisture content gradually decreases to zero; the specific formula is as follows:

[0085]

[0086] Γ(h)=(ln(e+|bh| n )) -m

[0087] Γ(h0)=(ln(e+|bh0| n )) -m

[0088] K(h)=K s S n (h)g [1-(1-Γ(h) 1 / m ) 1-1 / n ] 2

[0089] Where S n (h) is the generalized saturation. By introducing the Γ(h) correction function, the moisture state from saturation to extreme dryness is fully expressed. h is the pressure head. h is set to -6.3×10 cm, corresponding to a water content of 0. K(h) is the unsaturated hydraulic conductivity of the soil, K s is the saturated hydraulic conductivity of the soil; b is a parameter related to the air suction, m and n are empirical fitting parameters (parameters related to the soil pore distribution), and g is an empirical parameter, which can be taken as 3.5.

[0090] S22: Determine the water storage capacity of the bedrock weathering layer based on the upper boundary runoff and the lower boundary runoff.

[0091] S23, estimate the total amount of water that can be absorbed based on capillary water, membrane water, bedrock weathering layer water storage and rainfall.

[0092] Optionally, a weighted calculation is performed on the capillary water volume, the membrane water volume, the bedrock weathering layer water storage volume and the rainfall in combination with corresponding weighting coefficients to determine the total amount of absorbable water.

[0093] The formula for the total amount of absorbable water (weighted calculation) is:

[0094] θ′=ω1×α+ω2×β+ω3×φ+ω4×δ

[0095] Among them, θ′ represents the total amount of absorbable water, α represents the rainfall, β represents the capillary water, φ represents the film water, δ represents the water storage capacity of the bedrock weathering layer, ω1 represents the rainfall weight coefficient, ω2 represents the capillary water weight coefficient, ω3 represents the film water weight coefficient, and ω4 represents the weathering layer weight coefficient. The above weight coefficients are related to their corresponding absorbable capacities, ω1 ≥ ω2 ≥ ω4 ≥ ω3.

[0096] Please refer to Figure 3 In an optional embodiment, before generating the corresponding vegetation carrying capacity assessment result according to the total amount of absorbable water and the corresponding vegetation water demand of the vegetation at step 40, the method for assessing the carrying capacity of mountain vegetation in arid areas further includes: S30, as follows.

[0097] S30: Determine the water requirement of the vegetation according to the basic vegetation coefficient, the surface soil evaporation coefficient, and the reference evapotranspiration corresponding to the vegetation.

[0098] Alternatively, the vegetation water requirement can be calculated as:

[0099] ET a =(K cb+K e )ET0

[0100]

[0101] Among them, ET a Indicates vegetation water requirement (mm), K cb Represents the basic vegetation coefficient, K e It represents the evaporation coefficient of the surface soil, which is a reference constant. ET0 represents the reference evaporation, and Δ represents the slope of the water vapor pressure curve (kPa℃ -1 ), R n Represents net radiation (MJm -2 day -1 ), G represents soil heat flux (MJ m -2 day -1 ), γ represents the wet / dry constant (kPa℃ -1 ), T a Indicates the temperature at the preset height (2m height, ℃), U indicates the wind speed at the preset height (2m height, ms -1 ), e s -e a Indicates the water vapor pressure difference (kPa).

[0102] Please refer to Figure 4 In an optional embodiment, at 40, after generating the corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, the arid area mountain vegetation carrying capacity assessment method also includes: S50 and S60, which are specifically described as follows.

[0103] S50: Filter out target vegetation types based on vegetation carrying capacity assessment results corresponding to the various vegetation types.

[0104] S60: Determine the vegetation configuration plan and planting density within the study area based on the vegetation carrying capacity assessment results corresponding to the target vegetation type.

[0105] Based on the results of vegetation carrying capacity assessment, formulate appropriate vegetation types, densities and configuration plans to ensure the coordinated relationship between vegetation growth and water resource utilization.

[0106] See also Figure 5 , Figure 5 An embodiment of the present invention provides a device for evaluating the carrying capacity of mountain vegetation in an arid area. Optionally, the device for evaluating the carrying capacity of mountain vegetation in an arid area is applied to the electronic device described above.

[0107] The device for assessing the carrying capacity of mountain vegetation in arid areas includes: a first processing unit 701 and a second processing unit 702 .

[0108] The first processing unit 701 is configured to obtain rainfall, soil moisture, and underground runoff at a sample location during a monitoring period. The sample location is defined as a location within the study area where the slope is greater than a preset slope value. The underground runoff includes the upper boundary runoff and the lower boundary runoff of the bedrock weathering layer corresponding to the sample location.

[0109] The first processing unit 701 is further used to estimate the total amount of absorbable water based on rainfall, soil moisture, and underground runoff;

[0110] The second processing unit 702 is configured to generate a corresponding vegetation carrying capacity assessment result according to the total amount of absorbable water and the corresponding vegetation water demand.

[0111] Optionally, the second processing unit 702 is configured to execute the above S40, and the first processing unit 701 may execute other steps in the above method embodiment.

[0112] It should be noted that the device for assessing the carrying capacity of vegetation in arid mountainous areas provided in this embodiment can implement the method flow shown in the above method flow embodiment to achieve the corresponding technical effects. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding contents in the above embodiment.

[0113] An embodiment of the present invention further provides a storage medium storing computer instructions or programs that, when read and executed, execute the method for assessing the carrying capacity of vegetation in arid mountainous areas described in the above embodiment. The storage medium may include memory, flash memory, registers, or a combination thereof.

[0114] The following provides an electronic device, which may be a mobile phone device, a computer device, a server device, etc. Figure 1 As shown, the aforementioned method for assessing the carrying capacity of mountain vegetation in arid areas can be implemented. Specifically, the electronic device includes: a processor 10, a memory 11, and a bus 12. The processor 10 may be a CPU. The memory 11 is used to store one or more programs. When the one or more programs are executed by the processor 10, the aforementioned method for assessing the carrying capacity of mountain vegetation in arid areas is executed.

[0115] In summary, the embodiments of the present invention provide a method, device, medium and equipment for assessing the carrying capacity of mountain vegetation in arid areas, including: obtaining the rainfall, soil moisture and underground runoff at the sample site during the monitoring period, wherein the sample site is a site with a slope greater than a preset slope value within the study area, and the underground runoff includes the upper boundary runoff and the lower boundary runoff of the bedrock weathering layer corresponding to the sample site; estimating the total amount of absorbable water based on the rainfall, soil moisture and underground runoff; and generating the corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the vegetation water demand corresponding to the vegetation. The method integrates the full moisture model, comprehensively considers the film water and weathered debris water storage in the soil, and proposes a method system for evaluating the carrying capacity of mountain vegetation. It can accurately capture the full moisture dynamic model of different soil types, obtain vegetation carrying capacity assessment results, and provide scientific and technological support for ecological restoration, vegetation configuration and water resource management in arid areas.

[0116] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0117] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A method for assessing the carrying capacity of mountain vegetation in arid areas, characterized in that: The method comprises: Obtaining rainfall, soil moisture, and underground runoff at a sample location during the monitoring period, wherein the sample location is a location within the study area with a slope greater than a preset slope value, and the underground runoff includes the upper boundary runoff and the lower boundary runoff of the bedrock weathering layer corresponding to the sample location; estimating the total amount of absorbable water based on the rainfall, the soil water content, and the underground runoff; According to the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, a corresponding vegetation carrying capacity assessment result is generated.

2. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 1, wherein: The estimating of the total amount of absorbable water based on the rainfall, the soil moisture, and the underground runoff includes: differentiating the soil water content to determine capillary water content and membrane water content; Determining the water storage capacity of the bedrock weathering layer according to the upper boundary runoff volume and the lower boundary runoff volume; The total amount of absorbable water is estimated based on the capillary water volume, the membrane water volume, the water storage capacity of the bedrock weathering layer, and the rainfall.

3. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 2, wherein: The estimating of the total amount of absorbable water based on the capillary water volume, the membrane water volume, the water storage capacity of the bedrock weathering layer, and the rainfall includes: The capillary water volume, the membrane water volume, the bedrock weathering layer water storage volume and the rainfall are weighted and calculated in combination with corresponding weighting coefficients to determine the total amount of absorbable water.

4. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 3, wherein: The formula for the total amount of absorbable water is: θ′=ω1×α+ω2×β+ω3×φ+ω4×δ Among them, θ′ represents the total amount of absorbable water, α represents the rainfall, β represents the capillary water, φ represents the film water, δ represents the water storage capacity of the bedrock weathering layer, ω1 represents the rainfall weight coefficient, ω2 represents the capillary water weight coefficient, ω3 represents the film water weight coefficient, and ω4 represents the weathering layer weight coefficient.

5. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 1, wherein: Before generating a corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand of the vegetation, the method further includes: The water requirement of the vegetation is determined according to the basic vegetation coefficient, the surface soil evaporation coefficient and the reference evapotranspiration corresponding to the vegetation.

6. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 5, wherein: The formula for vegetation water demand is: AND a =(K cb +K e )ET0 Among them, ET a Indicates the water requirement of the vegetation, K cb Represents the basic vegetation coefficient, K e represents the surface soil evaporation coefficient, ET0 represents the reference evaporation, Δ represents the slope of the water vapor pressure curve, R n represents net radiation, G represents soil heat flux, γ represents the dry-wet constant, T a Indicates the temperature at the preset height, U indicates the wind speed at the preset height, e s -e a Represents the vapor pressure difference.

7. The method for assessing the carrying capacity of mountain vegetation in arid areas according to claim 1, wherein: After generating a corresponding vegetation carrying capacity assessment result based on the total amount of absorbable water and the corresponding vegetation water demand, the method further includes: Target vegetation types are selected based on the vegetation carrying capacity assessment results corresponding to various vegetation types; Based on the vegetation carrying capacity assessment results corresponding to the target vegetation types, the vegetation configuration plan and planting density in the study area are determined.

8. A device for evaluating the carrying capacity of mountain vegetation in arid areas, characterized in that: The device comprises: a first processing unit, configured to obtain rainfall, soil moisture, and underground runoff at a sample location during a monitoring period, wherein the sample location is a location within the study area with a slope greater than a preset slope value, and the underground runoff includes an upper boundary runoff and a lower boundary runoff of a bedrock weathering layer corresponding to the sample location; The first processing unit is further configured to estimate the total amount of absorbable water based on the rainfall, the soil moisture, and the underground runoff; The second processing unit is used to generate a corresponding vegetation carrying capacity assessment result according to the total amount of absorbable water and the vegetation water demand corresponding to the vegetation.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: include: a processor and a memory, the memory being configured to store one or more programs; When the one or more programs are executed by the processor, the method according to any one of claims 1 to 7 is implemented.

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