Wetland water replenishing regulation and control method for salt marsh grassland in arid region and related device

Abstract

The invention provides an arid region salt marsh grassland wetland water supplement regulation and control method and a related device, and the method comprises the steps: determining the ecological water demand and deficiency corresponding to a target region according to the wetland vegetation evapotranspiration, precipitation and underground water-soil water exchange flux of the target region in a target time period, the target area is any area in the salt marsh grassland wetland in the arid area; determining a water quantity adaptive gap corresponding to the target area according to the earth surface water supplementing quantity and the ecological water demand deficit quantity of the target area in the target time period; and performing water supplementing regulation and control on the target area according to the water quantity adaptive gap. According to the accurate evaluation result of the water volume adaptation gap, a refined drip irrigation technology is adopted to carry out ecological water supplementation on the salt marsh grassland wetland, the requirements of plants for water in all stages of the whole life cycle are ensured, and the stability and adaptability of a wetland ecological system are improved; and multi-target collaborative development of hydrological communication, biodiversity improvement, habitat optimization and the like of the wetland ecosystem is realized.

Description

Technical Field

[0001] The present invention relates to the field of exploration, and in particular to a method for regulating water replenishment in salt marsh grassland wetlands in arid areas and a related device. Background Art

[0002] In arid ecosystems, water is a key factor limiting wetland vegetation growth and ecosystem stability. Ecological water demand is the amount of water necessary to maintain ecological functions such as sustainable vegetation development, stable groundwater levels, self-purification of water bodies, biological habitats, and surface baseflow. However, affected by the contradiction between water supply and demand, local wetlands in arid areas have experienced degradation, including disrupted hydrological rhythms, increased salinization, vegetation degradation, and a decline in waterbird habitat functions. Although some areas have implemented measures such as ecological water replenishment and vegetation restoration, the restoration effect is limited due to the lack of systematicity and integrity, making it difficult to meet the needs of high-quality wetland protection and restoration. Current wetland restoration technologies have obvious shortcomings, and there is an urgent need to develop targeted and systematic regulatory methods to achieve multi-objective coordinated development of wetland ecosystems, including hydrological connectivity, enhanced biodiversity, and optimized habitats. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and related device for regulating water replenishment in salt marsh grassland wetlands in arid areas to improve the above-mentioned problems.

[0004] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0005] In a first aspect, an embodiment of the present invention provides a method for regulating water replenishment in arid salt marsh grassland wetlands, the method comprising:

[0006] Determine the ecological water deficit corresponding to the target area based on the wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area during the target time period, wherein the target area is any area within the salt marsh grassland wetland in the arid region;

[0007] Determine the water adaptation gap corresponding to the target area based on the surface water replenishment of the target area within the target time period and the ecological water deficit;

[0008] Water replenishment and regulation are carried out in the target area according to the water adaptation gap.

[0009] In a second aspect, an embodiment of the present invention provides a device for regulating and replenishing water in a salt marsh grassland wetland in an arid area, the device comprising:

[0010] The first processing unit is configured to determine an ecological water deficit corresponding to a target area based on wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area within a target time period, wherein the target area is any area within a salt marsh grassland wetland in an arid region;

[0011] The first processing unit is further configured to determine a water adaptation gap corresponding to the target area according to the surface water replenishment amount and the ecological water deficit of the target area within the target time period;

[0012] The second processing unit is used to regulate water replenishment in the target area according to the water adaptation gap.

[0013] 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.

[0014] 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.

[0015] Compared with the existing technology, the embodiment of the present invention provides a method and related device for regulating water replenishment in arid salt marsh grassland wetlands. The method determines the ecological water deficit corresponding to the target area based on the evapotranspiration of wetland vegetation, precipitation, and groundwater-soil water exchange flux in the target area within a target time period, wherein the target area is any area located in the salt marsh grassland wetland in the arid area; determines the water adaptation gap corresponding to the target area based on the surface water replenishment and ecological water deficit in the target area within the target time period; and regulates water replenishment in the target area based on the water adaptation gap. Based on the accurate assessment results of the water adaptation gap, refined drip irrigation technology is used to implement ecological water replenishment for the salt marsh grassland wetland, ensuring the water demand of plants at all stages of their life cycle, improving the stability and adaptability of the wetland ecosystem, and achieving the coordinated development of multiple objectives such as hydrological connectivity, biodiversity enhancement, and habitat optimization in the wetland ecosystem.

[0016] 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

[0017] 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.

[0018] Figure 1 A schematic structural diagram of an electronic device provided by an embodiment of the present invention.

[0019] Figure 2 A schematic flow chart of a method for regulating water replenishment in salt marsh grassland wetlands in arid areas provided by an embodiment of the present invention.

[0020] Figure 3 A schematic diagram of the process of constructing a relationship model provided in an embodiment of the present invention.

[0021] Figure 4 A schematic diagram of the units of the device for water replenishment and control of salt marsh grassland wetlands in arid areas provided by an embodiment of the present invention.

[0022] In the figure: 10 - processor; 11 - memory; 12 - bus; 13 - communication interface; 501 - first processing unit; 502 - second processing unit. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The embodiment of the present invention provides an electronic device, which can be a mobile phone device, a computer device, or a server device. 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.

[0031] The processor 10 can be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the method for regulating water replenishment in salt marsh grassland wetlands 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.

[0032] 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.

[0033] 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.

[0034] Memory 11 is used to store programs, such as a program corresponding to a device for regulating water replenishment in arid salt marsh grassland wetlands. The device includes at least one software functional module that can be stored in the form of software or firmware in memory 11 or embedded in the operating system (OS) of an electronic device. Upon receiving an execution instruction, processor 10 executes the program to implement a method for regulating water replenishment in arid salt marsh grassland wetlands.

[0035] 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.

[0036] 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.

[0037] The present invention provides a method for regulating water supply in arid salt marsh grassland wetlands, which can be applied to, but not limited to, Figure 1 For detailed procedures, please refer to the electronic equipment shown in Figure 2 The water replenishment and regulation methods for salt marsh grassland wetlands in arid areas include: S21, S22 and S23, which are described in detail as follows.

[0038] S21. Determine the ecological water deficit corresponding to the target area based on the wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area during the target time period.

[0039] The target area is any area within the salt marsh grassland wetland in the arid area, and the target time period can be 1 day, 12 hours, or 1 week before the current time, which is not limited here.

[0040] Optionally, W = ET-P-ΔS, where W represents the ecological water deficit, ET represents the evapotranspiration of wetland vegetation, P represents precipitation, which can be obtained from rain gauges installed in the target area, and ΔS represents the groundwater-soil water exchange flux (a positive value represents capillary water recharge, and a negative value represents water loss).

[0041] S22: Determine the water adaptation gap corresponding to the target area based on the surface water replenishment and ecological water deficit in the target area within the target time period.

[0042] Optionally, D=WI, where D represents the water adaptation gap, I represents the surface water recharge, and W represents the ecological water deficit. The water adaptation gap reflects the balance of supply and demand of wetland water resources under current hydrological conditions and serves as the basis for wetland water recharge decision-making.

[0043] S23: Regulate water supply to target areas based on water adaptation gap.

[0044] In the water replenishment and regulation method for salt marsh grassland wetlands in arid areas provided in an embodiment of the present invention, based on the accurate assessment results of the water adaptation gap, refined drip irrigation technology is used to implement ecological water replenishment for salt marsh grassland wetlands, ensuring the water demand of plants at all stages of their life cycle, improving the stability and adaptability of wetland ecosystems, and achieving multi-objective coordinated development of wetland ecosystems such as hydrological connectivity, biodiversity improvement, and habitat optimization.

[0045] Based on wetland ecological water demand theory and incorporating characteristics of the plant life cycle, this study focuses on salt marsh grassland wetland ecosystems in arid regions. Key water balance components, such as surface water recharge, wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux, are incorporated to accurately characterize the dynamic response of wetland vegetation to water. This research aims to develop a wetland water recharge and regulation technology system that addresses water adaptation gaps, providing theoretical support and technical solutions for ecological restoration, optimal vegetation allocation, and scientific water resource management.

[0046] Based on the above, the present invention also provides an optional implementation method for obtaining groundwater-soil water exchange flux, which is described below. Obtaining the groundwater-soil water exchange flux in a target area within a target time period includes: S201, S202, and S203, which are described in detail below.

[0047] S201, obtaining the groundwater level in the target area within the target time period.

[0048] Optionally, a groundwater level meter is installed in the target area to obtain continuous observation data of the groundwater level, ie, the depth of groundwater below the underground water table.

[0049] S202, obtaining target soil moisture.

[0050] The target soil moisture is the soil moisture at a preset simulation upper boundary (which may be, but is not limited to, a depth of 150 cm) within a target time period.

[0051] Optionally, a high-precision soil moisture sensor (such as a TDR) is deployed at the upper boundary of the simulation (which may be, but is not limited to, a depth of 150 cm) to collect soil moisture data once per hour, covering the entire growing season.

[0052] S203 , determining the groundwater-soil water exchange flux in the target area within the target time period based on the groundwater level and the target soil moisture.

[0053] Optionally, based on the groundwater level and the target soil moisture, the groundwater-soil water exchange flux in the target area within the target time period is determined, including: S203A and S203B, which are specifically described below.

[0054] S203A, determine the unsaturated hydraulic conductivity of the soil based on the target soil moisture.

[0055] S203B, determine the groundwater-soil water exchange flux in the target area within the target time period based on the soil unsaturated hydraulic conductivity and groundwater level.

[0056] Alternatively, the formula for calculating the unsaturated hydraulic conductivity of soil is:

[0057]

[0058] Where θ(h) is the target soil moisture, also known as the soil volumetric water content under matrix potential h (cm 3 / cm 3 );θ r is the residual volume water content of the soil (obtained by measurement, cm 3 / cm 3 );θ s is the saturated volumetric water content of soil (cm 3 / cm 3 ); h is the pressure head (cm); α is a parameter related to the air intake suction (1 / cm); m and n are empirical fitting parameters (parameters related to soil pore distribution); ρ b Soil bulk density g / cm 3 ρ s is the density of soil particles, generally 2.65g / cm 3 ;S e is the effective saturation, which describes the proportion of mobile water in the soil; K(h) is the unsaturated hydraulic conductivity of the soil (cm / min), K s is the saturated hydraulic conductivity of soil (cm / min); L is an empirical parameter and can be taken as 0.5.

[0059] Alternatively, the groundwater-soil water exchange flux in the target area during the target time period is calculated as:

[0060]

[0061] Where ΔS represents the groundwater-soil water exchange flux in the target area during the target time period, i represents the duration of the target time period, t represents time, z represents the depth coordinate, which is taken from the upper boundary of the simulation to the groundwater level, K(h) represents the unsaturated hydraulic conductivity of the soil (cm / min), and h represents the pressure head (cm).

[0062] Alternatively, the groundwater-soil water exchange flux of the target area within the target time period is determined based on the groundwater level and the target soil moisture, including: S203C, as described below.

[0063] According to the groundwater level, target soil moisture and simulation upper boundary, the one-dimensional Richards equation is solved to simulate the vertical movement of soil water and calculate the groundwater-soil water exchange flux ΔS.

[0064] By using a soil depth of 150 cm as the upper boundary condition and ignoring the influence of wetland plant roots, the model reduces simulation parameters and improves model efficiency. Through this modeling process, the groundwater-soil water exchange flux, ΔS, can be estimated efficiently and reliably.

[0065] Based on the above, regarding how to obtain wetland vegetation evapotranspiration, the present invention also provides an optional implementation method, which is described below. Obtaining wetland vegetation evapotranspiration in a target area within a target time period includes: S204, S205, and S206, which are described in detail below.

[0066] S204: Obtain vegetation coverage of the target area within the target time period.

[0067] Optionally, vegetation phenology monitoring cameras are set up in the target area to take pictures of the surface vegetation coverage at regular intervals every day to achieve real-time tracking of the growth dynamics of wetland vegetation and obtain the vegetation coverage of the target area during the target time period. It should be noted that at different growth stages of vegetation, the corresponding vegetation coverage is different and the corresponding water demand is different. Monitoring vegetation coverage and subsequently calculating the water demand of wetland vegetation at different life cycle stages (i.e., wetland vegetation evaporation) is the core link in achieving ecological restoration and sustainable management.

[0068] S205: Input the vegetation coverage into a pre-created relationship model to obtain the vegetation biomass of the target area within the target time period. The relationship model is a conversion model between vegetation coverage and vegetation biomass.

[0069] S206: Determine the evapotranspiration of wetland vegetation in the target area within the target time period based on the water use efficiency and vegetation biomass of the wetland ecosystem in the target area.

[0070] Alternatively, the formula for calculating wetland vegetation evapotranspiration in the target area within the target time period is:

[0071] WUE=NPP÷ET

[0072] Among them, WUE represents the water use efficiency of wetland ecosystems, NPP represents vegetation biomass, and ET represents the evapotranspiration of wetland vegetation in the target area during the target time period.

[0073] Alternatively, refer to Figure 3 , Figure 3 A schematic diagram of a process for constructing a relationship model provided in an embodiment of the present invention is provided. The process includes: S11 and S12, which are specifically described as follows.

[0074] S11, obtaining vegetation coverage of N survey plots before harvesting, then harvesting the survey plots to obtain vegetation biomass of the survey plots.

[0075] Among them, the survey plots were of the same type as the target areas, and the harvesting time points corresponding to different survey plots were at different growth stages of the vegetation in the plots (growth and vegetation in the survey plots).

[0076] S12: Construct a relationship model based on the vegetation cover and vegetation biomass corresponding to the N survey plots.

[0077] Optionally, the survey sample plot is harvested to obtain the vegetation biomass of the survey sample plot, including: S11A and S11B, which are described in detail below.

[0078] S11A, harvest vegetation above and below the surface of the survey plot at a preset depth.

[0079] S11B, the obtained vegetation was dried and weighed to obtain the vegetation biomass of the survey plot.

[0080] Among them, vegetation biomass is also called the net primary productivity of the sample.

[0081] 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.

[0082] See also Figure 4 , Figure 4 An embodiment of the present invention provides a device for regulating and replenishing water in arid salt marsh grassland wetlands. Optionally, the device for regulating and replenishing water in arid salt marsh grassland wetlands is applied to the electronic device described above.

[0083] The device for regulating and replenishing water in arid salt marsh grassland wetlands includes: a first processing unit 501 and a second processing unit 502 .

[0084] The first processing unit 501 is configured to determine the ecological water deficit corresponding to the target area based on the wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area during the target time period, wherein the target area is any area within the salt marsh grassland wetland in the arid region;

[0085] The first processing unit 501 is further configured to determine the water adaptation gap corresponding to the target area according to the surface water replenishment and ecological water deficit of the target area within the target time period;

[0086] The second processing unit 502 is used to regulate water replenishment in the target area according to the water adaptation gap.

[0087] It should be noted that the arid salt marsh wetland water replenishment and control device 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 content in the above embodiment.

[0088] Embodiments of the present invention also provide a storage medium storing computer instructions and programs that, when read and executed, execute the arid salt marsh wetland water replenishment and control method described above. The storage medium may include memory, flash memory, registers, or a combination thereof.

[0089] The following provides an electronic device, which may be a mobile phone device, a computer device, or a server device. Figure 1 As shown, the aforementioned method for regulating water replenishment in arid salt marsh grassland wetlands 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 executed by the processor 10, the aforementioned method for regulating water replenishment in arid salt marsh grassland wetlands is implemented.

[0090] In summary, the embodiment of the present invention provides a method and related device for regulating water replenishment in arid salt marsh grassland wetlands. The method determines the ecological water deficit corresponding to the target area according to the evapotranspiration of wetland vegetation, precipitation, and groundwater-soil water exchange flux in the target area within a target time period, wherein the target area is any area located in the salt marsh grassland wetland in the arid area; determines the water adaptation gap corresponding to the target area according to the surface water replenishment and ecological water deficit in the target area within the target time period; and regulates water replenishment in the target area according to the water adaptation gap. Based on the accurate assessment results of the water adaptation gap, refined drip irrigation technology is used to implement ecological water replenishment for salt marsh grassland wetlands, ensure the water demand of plants at all stages of their life cycle, improve the stability and adaptability of wetland ecosystems, and achieve the coordinated development of multiple objectives such as hydrological connectivity of wetland ecosystems, biodiversity enhancement, and habitat optimization.

[0091] 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.

[0092] 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 regulating water replenishment in salt marsh grassland wetlands in arid areas, characterized in that: The method comprises: Determine the ecological water deficit corresponding to the target area based on the wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area during the target time period, wherein the target area is any area within the salt marsh grassland wetland in the arid region; Determine the water adaptation gap corresponding to the target area based on the surface water replenishment of the target area within the target time period and the ecological water deficit; Water replenishment and regulation are carried out in the target area according to the water adaptation gap.

2. The method for regulating water replenishment in arid salt marsh grassland wetlands according to claim 1, characterized in that: Obtain groundwater-soil water exchange flux in the target area within the target time period, including: Obtaining the groundwater level of the target area within the target time period; Obtaining target soil moisture, wherein the target soil moisture is the soil moisture from the groundwater level of the target area to a preset simulation upper boundary within a target time period; The groundwater-soil water exchange flux in the target area within a target time period is determined according to the groundwater level and the target soil moisture.

3. The method for regulating water replenishment in arid salt marsh grassland wetlands according to claim 2, characterized in that: Determining the groundwater-soil water exchange flux in the target area within a target time period based on the groundwater level and the target soil moisture includes: determining the unsaturated hydraulic conductivity of the soil according to the target soil moisture; The groundwater-soil water exchange flux in the target area within a target time period is determined according to the soil unsaturated hydraulic conductivity and the groundwater level.

4. The method for regulating water replenishment in arid salt marsh grassland wetlands according to claim 2, characterized in that: Determining the groundwater-soil water exchange flux in the target area within a target time period based on the groundwater level and the target soil moisture includes: According to the groundwater level, the target soil moisture and the simulation upper boundary, the one-dimensional Richards equation is solved to simulate the vertical movement process of soil water, and the groundwater-soil water exchange flux ΔS is calculated.

5. The method for regulating water replenishment in arid salt marsh grassland wetlands according to claim 1, characterized in that: Obtain wetland vegetation evapotranspiration in the target area within the target time period, including: Obtain vegetation coverage in the target area within the target time period; Inputting the vegetation cover into a pre-created relationship model to obtain the vegetation biomass of the target area within the target time period, wherein the relationship model is a conversion model between vegetation cover and vegetation biomass; The evapotranspiration of wetland vegetation in the target area within the target time period is determined based on the water use efficiency of the wetland ecosystem in the target area and the vegetation biomass.

6. The method for regulating water replenishment in arid salt marsh grassland wetlands according to claim 5, characterized in that: The process of constructing the relationship model includes: Obtaining vegetation coverage of N survey sample plots before harvesting, then harvesting the survey sample plots to obtain vegetation biomass of the survey sample plots; The survey plots are of the same type as the target area, and the harvesting time points corresponding to different survey plots are at different growth stages of the vegetation in the plots; The relationship model is constructed based on the vegetation coverage and vegetation biomass corresponding to N survey plots.

7. The method for regulating water replenishment in salt marsh grassland wetlands in arid areas according to claim 6, characterized in that: The step of harvesting the survey sample plot to obtain the vegetation biomass of the survey sample plot includes: Harvesting vegetation at the surface and within a predetermined depth below ground level of the survey plot; The obtained vegetation is dried and weighed to obtain the vegetation biomass of the survey plot.

8. A water replenishment and control device for salt marsh grassland wetlands in arid areas, characterized by: The device comprises: The first processing unit is configured to determine an ecological water deficit corresponding to a target area based on wetland vegetation evapotranspiration, precipitation, and groundwater-soil water exchange flux in the target area within a target time period, wherein the target area is any area within a salt marsh grassland wetland in an arid region; The first processing unit is further configured to determine a water adaptation gap corresponding to the target area according to the surface water replenishment amount and the ecological water deficit of the target area within the target time period; The second processing unit is used to regulate water replenishment in the target area according to the water adaptation gap.

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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