A saline-alkali soil underground water regulation method, device, electronic equipment and storage medium

Abstract

The application provides a saline-alkali soil underground water regulation method, device, electronic equipment and storage medium, and relates to the technical field of land management.The method comprises the following steps: obtaining first historical monitoring information; inputting the first historical monitoring information into a pre-constructed prediction model to obtain a predicted value of soil salinity in a future period; inputting the predicted value of soil salinity into an analysis model to obtain a target water level of underground water in the future period; wherein the target water level of underground water is used to constrain the target value of soil salinity to be less than a preset salinity threshold value, and the target value of soil humidity to be greater than a preset humidity threshold value; generating a water level regulation strategy based on the target water level of underground water, and controlling the opening or closing of a water pump based on the water level regulation strategy.The application predicts soil salinity in a future period by obtaining saline-alkali soil monitoring information, thereby obtaining the target water level of underground water and generating the water level regulation strategy, and ensuring the foresight, dynamics and stability of underground water level regulation.

Description

Technical Field

[0001] This invention relates to the field of land management technology, and more specifically, to a method, apparatus, electronic device, and storage medium for regulating groundwater in saline-alkali land. Background Technology

[0002] Saline-alkali land is a major constraint on global agricultural production and ecological restoration. my country has a wide distribution of saline-alkali land, and in some areas, due to natural conditions such as arid climate, high groundwater mineralization, and evaporation exceeding precipitation, coupled with human factors such as unreasonable irrigation, soil salinization is a prominent problem, leading to a decline in arable land quality, difficulty in crop survival, and serious impact on land resource utilization and regional agricultural sustainable development.

[0003] Currently, groundwater regulation is commonly used in the treatment of saline-alkali land to promote the leaching of soil salts into groundwater bodies and their discharge, or to inhibit the evaporation and return of salts from groundwater, thereby achieving the improvement and sustainable use of saline-alkali land. However, the current groundwater regulation of saline-alkali land mainly relies on artificial intervention or simple pumping and releasing of water according to fixed settings, which has obvious limitations and leads to unstable treatment results. Summary of the Invention

[0004] The problem addressed by this invention is how to improve the stability of the treatment effect of saline-alkali land.

[0005] To address the above problems, this invention provides a method for regulating groundwater in saline-alkali land, comprising:

[0006] Obtain the first historical monitoring information of saline-alkali land within the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater;

[0007] The first historical monitoring information is input into a pre-built prediction model to obtain the predicted value of soil salinity in the future period.

[0008] The predicted value of soil salinity is input into a pre-built analysis model to obtain the target water level of groundwater in the future time period; wherein, the target water level of groundwater is used to constrain the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period.

[0009] A water level regulation strategy is generated based on the target water level of the groundwater, and the water pump is controlled to start or stop based on the water level regulation strategy.

[0010] Optionally, the first historical monitoring information further includes historical values ​​of water and salt transport characteristics; before obtaining the first historical monitoring information of the saline-alkali land within the first historical period, the method further includes:

[0011] Obtain historical meteorological information of the area where the saline-alkali land is located during the first historical period;

[0012] The historical meteorological information is input into a pre-constructed feature model to obtain historical values ​​of the water and salt transport characteristics; wherein, the feature model includes an evapotranspiration model, and the water and salt transport characteristics include reference crop evapotranspiration.

[0013] Optionally, before inputting the predicted soil salinity value into a pre-built analytical model to obtain the target groundwater level for the future time period, the method further includes:

[0014] The system acquires second historical monitoring information of the saline-alkali land within a second historical period, and acquires a reference target water level of the groundwater that is pre-associated with the second historical monitoring information; wherein the second historical period is prior to the first historical period.

[0015] Using the historical value of soil salinity in the second historical monitoring information as input and the corresponding reference target water level of groundwater as output, a preset initial analysis model is trained to obtain the analysis model.

[0016] Optionally, before obtaining the reference target water level of the groundwater that is pre-associated with the second historical monitoring information, the method further includes:

[0017] Based on the second historical monitoring information and the preset regulating water level of each of the groundwaters, the salt transport of the saline-alkali land is simulated to obtain the simulation information corresponding to the preset regulating water level of each of the groundwaters; wherein, the simulation information includes the simulated value of soil salinity and the simulated value of soil moisture.

[0018] Based on the preset adjustment water level of the groundwater corresponding to the simulation information that meets the preset optimization target, the reference target water level of the groundwater is obtained; wherein, the preset optimization target includes the simulated value of soil salinity being less than the preset salinity threshold, and the simulated value of soil moisture being greater than the preset moisture threshold.

[0019] Optionally, the water pump includes a pumping pump and an irrigation pump; the target groundwater level includes multiple sub-target water levels arranged in chronological order; the step of generating a water level regulation strategy based on the target groundwater level and controlling the pump to start or stop based on the water level regulation strategy includes:

[0020] Obtain the current monitoring information of the saline-alkali land; wherein the current monitoring information includes the current value of soil salinity, the current value of soil moisture, and the current water level of groundwater;

[0021] When the current value of the soil salinity is greater than the preset salinity threshold, and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the water pump is controlled to start until the preset shutdown condition is met.

[0022] When the current value of the soil moisture is less than the preset moisture threshold and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the irrigation pump is controlled to start until the preset shutdown condition is met.

[0023] Optionally, the preset shutdown condition includes the current deviation being less than the preset deviation, and / or the continuous operating time of the pumping pump or the irrigation pump being greater than the preset duration.

[0024] Optionally, after the water pump is turned on, and / or after the irrigation pump is turned on, the method further includes:

[0025] When the current deviation is detected to be less than the preset deviation, return to the step of obtaining the first historical monitoring information of the saline-alkali land in the first historical period.

[0026] In this invention, a significant interaction exists between soil salinity and groundwater level: excessively high groundwater levels can cause salt to rise to the surface soil via capillary action, resulting in secondary salinization. Conversely, excessive drainage can lead to excessively low soil moisture, affecting vegetation growth or agricultural irrigation needs. This invention acquires first-historical monitoring information of saline-alkali land, including historical values ​​of soil salinity, soil moisture, and groundwater level within a first historical period. This enables comprehensive data collection on the dynamic changes in water and salt in saline-alkali land, providing accurate and reliable reference for subsequent soil salinity prediction. Furthermore, this invention pre-constructs a prediction model to learn the trend of soil salinity evolution over time and its nonlinear dynamic relationship with groundwater level and soil moisture. In practical use, inputting the first-historical monitoring information into this prediction model yields predicted soil salinity values ​​for future periods, allowing for an understanding of future soil salinization trends. This facilitates early prediction of the development direction and severity of salinization risks, enabling a shift from passive management to proactive prevention. Based on this, the predicted soil salinity value is input into a pre-constructed analytical model, thereby inversely deducing the target groundwater level required for groundwater regulation in the future to achieve the governance goals. The target groundwater level is used to constrain the target soil salinity value to be less than a preset salinity threshold and the target soil moisture value to be greater than a preset moisture threshold in the future. That is, by regulating groundwater to the corresponding target level in the future, the soil salinity in saline-alkali land can be constrained from exceeding the preset salinity threshold and the soil moisture can be kept at a preset moisture threshold. This helps to inhibit salt accumulation and prevent topsoil deterioration, and also helps to maintain the necessary water supply to ensure crop growth or land use needs. Finally, this invention generates a water level regulation strategy based on the determined target groundwater level to control the opening and closing of water pumps, achieving dynamic and precise regulation of the water level in saline-alkali land.

[0027] The present invention also provides a groundwater regulation device for saline-alkali land, comprising:

[0028] The acquisition module is used to acquire the first historical monitoring information of the saline-alkali land within a first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater;

[0029] The prediction module is used to input the first historical monitoring information into a pre-built prediction model to obtain the predicted value of the soil salinity in the future period.

[0030] An analysis module is used to input the predicted value of soil salinity into a pre-built analysis model to obtain the target water level of groundwater in the future time period; wherein, the target water level of groundwater is used to constrain the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period.

[0031] The control module is used to generate a water level regulation strategy based on the target water level of the groundwater, and to control the water pump to start or stop based on the water level regulation strategy.

[0032] The groundwater regulation device for saline-alkali land provided by this invention has essentially the same advantages as the groundwater regulation method for saline-alkali land compared to the prior art, and will not be repeated here.

[0033] The present invention also provides an electronic device, including a memory and a processor;

[0034] The memory is used to store computer programs;

[0035] The processor is used to implement the groundwater regulation method for saline-alkali land as described above when executing the computer program.

[0036] The electronic device provided by this invention has essentially the same advantages as the groundwater regulation method for saline-alkali land compared to the prior art, and will not be elaborated further here.

[0037] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the groundwater regulation method for saline-alkali land as described above.

[0038] The advantages of the computer-readable storage medium provided by this invention and the groundwater regulation method for saline-alkali land compared with the prior art are basically the same, and will not be repeated here. Attached Figure Description

[0039] Figure 1 This is a schematic flowchart of the groundwater regulation method for saline-alkali land according to an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the groundwater regulation device for saline-alkali land according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0042] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0043] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0044] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0045] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0046] Early saline-alkali land management relied primarily on manual surveying and experience-based judgment, employing extensive methods such as ditching for drainage and flood irrigation, which were inefficient and consumed large amounts of water. With the development of sensing and automation technologies, automatic groundwater level monitoring devices and remote-controlled pump systems have been gradually introduced, achieving an initial shift from manual to automated methods. However, existing automated groundwater control methods for saline-alkali land still have significant shortcomings. Although some systems integrate multiple sensors, the data are independent of each other, and the control strategies often rely on fixed threshold triggers, failing to adapt to dynamic changes in soil conditions, exhibiting control lag, and struggling to effectively prevent salt accumulation or exceeding standards. These deficiencies limit the stability of saline-alkali land management results.

[0047] To address the problems existing in the aforementioned related technologies, embodiments of the present invention provide a method, apparatus, electronic device, and storage medium for regulating groundwater in saline-alkali land.

[0048] like Figure 1 As shown in the figure, an embodiment of the present invention provides a method for regulating groundwater in saline-alkali land, comprising the following steps:

[0049] S1: Obtain the first historical monitoring information of saline-alkali land within the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater.

[0050] Specifically, in this embodiment, the first historical monitoring information represents the observation records of relevant parameters of saline-alkali land over a past period (e.g., within a first historical time period), which may include historical values ​​of soil salinity, soil moisture, and groundwater levels. The first historical monitoring information can be obtained through various monitoring devices deployed within the target saline-alkali land area. For example, soil salinity at different soil depths can be measured using soil salinity sensors (e.g., conductivity sensors), soil moisture content can be measured using soil moisture sensors, and the depth of the groundwater layer can be monitored using water level sensors installed in monitoring wells. These sensors can transmit data to a data center (e.g., the cloud) via a wireless network to form a continuous historical database. It should be understood that the first historical time period in this embodiment can be set according to forecasting needs; for example, the first historical time period can be the past 72 hours. Correspondingly, the first historical monitoring information in this embodiment is the time-series information of the data monitored by the sensors over the past 72 hours.

[0051] S2: Input the first historical monitoring information into the pre-built prediction model to obtain the predicted value of soil salinity in the future period.

[0052] Specifically, in this embodiment, the prediction model can be pre-built to predict soil salinity in future periods based on first historical monitoring information. For example, second historical monitoring information of saline-alkali land in a second historical period (e.g., the past three years) can be obtained, and this information can be divided at intervals based on the first historical period (e.g., data from every 72 hours is grouped together) to obtain multiple data groups arranged in chronological order. Each data group contains historical values ​​of soil salinity, soil moisture, and groundwater level. Based on this, the data groups can be used as input, and the corresponding next data group (or the historical value of soil salinity in the next data group) can be used as output to train the initial prediction model, thereby obtaining the prediction model. The initial prediction model can select a neural network such as a Long Short-Term Memory (LSTM) network to facilitate learning the nonlinear dynamic relationship between soil salinity, soil moisture, and groundwater level. In actual use, the first historical monitoring information in the first historical period is input into the prediction model, and the prediction model can output time-series data of predicted soil salinity values ​​in future periods (e.g., the next 72 hours), thereby grasping the trend of soil salinity changes in future periods.

[0053] S3: Input the predicted value of soil salinity into the pre-built analysis model to obtain the target groundwater level in the future period; wherein, the target groundwater level is used to constrain the target value of soil salinity to be less than the preset salinity threshold and the target value of soil moisture to be greater than the preset moisture threshold in the future period.

[0054] Specifically, in this embodiment, the future time period refers to a period of time after the current point in time (e.g., the next 72 hours). Correspondingly, the target groundwater level represents the target value that the groundwater level needs to reach within the future time period. The target soil salinity value represents the value of soil salinity after adjusting to the target level within the future time period, while the target soil moisture value actually represents the value of soil moisture after adjusting to the target level within the future time period. It should be understood that the predicted soil salinity value in this embodiment represents the estimated change in soil salinity within the future time period based on the first historical monitoring information and without interfering with the groundwater level (i.e., the time-series data of soil salinity). The target soil salinity value, on the other hand, represents the estimated change in soil salinity within the future time period based on the first historical monitoring information and with water level control intervention based on the target groundwater level. In this embodiment, the preset salinity threshold and preset moisture threshold can be set in advance. For example, the preset salinity threshold can be less than or equal to 80% of the critical salinity that can damage crop growth or aggravate salinization.

[0055] In one embodiment, the analysis model represents a model used to determine the corresponding groundwater level control target for a future period based on predicted soil salinity values. A mapping relationship between historical soil salinity values ​​and a reference control groundwater level (i.e., a groundwater level that ensures the target soil salinity value is less than a preset salinity threshold and the target soil moisture value is greater than a preset moisture threshold under the corresponding soil salinity environment) can be pre-constructed as training data. The time-series data of historical soil salinity values ​​within a preset period (e.g., 72 hours) is used as input, and the corresponding reference target groundwater level is used as output to train the initial analysis model, thereby obtaining the analysis model. The initial analysis model can also be a neural network model such as a Long Short-Term Memory (LSTM) network to learn the mapping relationship between soil salinity and the reference target water level.

[0056] S4: Generate a water level regulation strategy based on the target groundwater level, and control the water pump to start or stop based on the water level regulation strategy.

[0057] Specifically, in this embodiment, the water level regulation strategy represents a set of pump operation instructions formulated based on the difference between the target water level and the current water level. For example, when the detected current groundwater level is higher than the target groundwater level for that time period (or that moment), the water level regulation strategy can be to start the drainage pump to pump water; when the detected current groundwater level is lower than the target groundwater level for that time period (or that moment), the water level regulation strategy can be to start the irrigation pump to irrigate.

[0058] In this embodiment, a significant interaction exists between soil salinity and groundwater level: excessively high groundwater levels can cause salt to rise to the surface soil via capillary action, resulting in secondary salinization. Conversely, excessive drainage can lead to excessively low soil moisture, affecting vegetation growth or agricultural irrigation needs. This embodiment acquires first historical monitoring information of saline-alkali land, including historical values ​​of soil salinity, soil moisture, and groundwater level within a first historical period. This enables comprehensive data collection on the dynamic changes in water and salt in saline-alkali land, providing accurate and reliable reference for subsequent soil salinity prediction. Furthermore, this embodiment pre-constructs a prediction model to learn the trend of soil salinity evolution over time and its nonlinear dynamic relationship with groundwater level and soil moisture. In practical use, inputting the first historical monitoring information into the prediction model yields predicted soil salinity values ​​for future periods, allowing for an understanding of future soil salinization trends. This facilitates early prediction of the development direction and severity of salinization risks, enabling a shift from passive management to proactive prevention. Based on this, the predicted soil salinity value is input into a pre-constructed analytical model, thereby inversely deducing the target groundwater level required for groundwater regulation in the future to achieve the governance goals. The target groundwater level is used to constrain the target soil salinity value to be less than a preset salinity threshold and the target soil moisture value to be greater than a preset moisture threshold in the future. That is, by regulating groundwater to the corresponding target level in the future, the soil salinity in saline-alkali land can be constrained from exceeding the preset salinity threshold and the soil moisture can be kept at a preset moisture threshold. This helps to inhibit salt accumulation and prevent topsoil deterioration, and also helps to maintain the necessary water supply to ensure crop growth or land use needs. Finally, this embodiment generates a water level regulation strategy based on the determined target groundwater level to control the opening and closing of water pumps, achieving dynamic and precise regulation of the water level in saline-alkali land.

[0059] Thus, this implementation achieves fully automated management of the entire process of saline-alkali land remediation through perception, prediction, analysis, decision-making, and execution, improving the response speed and accuracy of saline-alkali land remediation. Compared to traditional methods that rely on manual experience to set fixed drainage cycles or simply control the start and stop based on real-time water levels, this embodiment integrates historical data-driven predictive capabilities with constraint-oriented reverse analysis capabilities, ensuring the foresight, dynamism, and accuracy of groundwater level regulation, thereby comprehensively improving the stability of saline-alkali land remediation results.

[0060] Optionally, the first historical monitoring information also includes historical values ​​of water and salt transport characteristics; before obtaining the first historical monitoring information of saline-alkali land within the first historical period, it also includes:

[0061] Obtain historical meteorological information for the area where the saline-alkali land is located during the first historical period;

[0062] Historical meteorological information is input into a pre-constructed feature model to obtain historical values ​​of water and salt transport characteristics; the feature model includes an evapotranspiration model, and the water and salt transport characteristics include reference crop evapotranspiration.

[0063] Specifically, in this embodiment, the first historical monitoring information also includes historical values ​​of water-salt transport characteristics. These historical values ​​represent key indicators that reflect the intensity of salt migration and transformation in soil and water systems, and may include reference crop evapotranspiration. In this embodiment, reference crop evapotranspiration can represent the evapotranspiration water consumption of a reference crop under standard conditions, and its magnitude directly determines the driving force for salt to migrate upwards with water.

[0064] In one embodiment, historical meteorological information of the saline-alkali land area during a first historical period can be obtained. This historical meteorological information may include data such as average temperature, relative humidity, wind speed, sunshine duration, and solar radiation. This information can be obtained through publicly available meteorological data platforms or through meteorological data acquisition devices deployed at the saline-alkali land (e.g., obtaining historical humidity values ​​by acquiring time-series humidity data during the first historical period using humidity sensors). Based on this, the historical meteorological information can be input into a pre-constructed feature model to obtain historical values ​​of water-salt transport characteristics during the first historical period. For example, in this embodiment, the feature model may include an evapotranspiration model (such as the Penman-Monteith model). Historical meteorological information can be input into the evapotranspiration model to obtain the reference crop evapotranspiration during the first historical period.

[0065] Optionally, after obtaining the reference crop evapotranspiration, the method further includes: using the reference crop evapotranspiration and historical groundwater levels to obtain an estimated value of groundwater evaporation through a preset empirical function (such as the Avyanov formula); when the estimated value of groundwater evaporation in a preset future time period (such as the next 8 hours) is greater than a preset evaporation threshold, controlling the water pump to start until the current groundwater level is lower than a preset safe level. This helps to control the groundwater level below the depth of capillary action, thereby inhibiting the upward migration of salts from the source.

[0066] Optionally, the first historical monitoring information in this embodiment may also include historical precipitation values. Based on historical soil salinity values, historical soil moisture values, historical groundwater levels, and historical precipitation values ​​within the first historical period, the information is input into a pre-built prediction model, which helps to further improve the accuracy and reliability of soil salinity prediction in future periods.

[0067] In this embodiment, water and salt migration in saline-alkali land is influenced not only by its own soil salinity, soil moisture, and groundwater level, but also by the external meteorological environment. This embodiment obtains historical meteorological information for the first historical period in the saline-alkali land area and inputs it into a pre-constructed feature model. This facilitates the transformation of complex and diverse raw meteorological information into simpler and more direct water and salt transport characteristics, thereby reducing the data processing volume and complexity of the prediction model and improving prediction efficiency. Simultaneously, reference crop evapotranspiration, as a key driver of water and salt transport, can effectively characterize the promoting or inhibiting effects of climatic factors on the salinization process. In this embodiment, water and salt transport characteristics include reference crop evapotranspiration, which further improves the accuracy and robustness of the prediction model in predicting future trends in soil salinity.

[0068] Optionally, before inputting the predicted soil salinity into a pre-built analytical model to obtain the target groundwater level for future periods, the following steps are also included:

[0069] The second historical monitoring information of saline-alkali land within the second historical period is obtained, as well as the reference target water level of groundwater pre-associated with the second historical monitoring information; wherein, the second historical period is prior to the first historical period;

[0070] Using historical values ​​of soil salinity from the second historical monitoring information as input and the corresponding reference target groundwater level as output, a preset initial analysis model is trained to obtain the analysis model.

[0071] Specifically, in this embodiment, the second historical period refers to an earlier time period than the first historical period (such as the past 3 years), used for model training data collection, and its time range can be preset. The second historical monitoring information in this embodiment refers to the environmental parameters of saline-alkali land acquired within the second historical period, including historical values ​​of soil salinity, soil moisture, and groundwater levels, etc., which are the same type as the first historical monitoring information and are acquired using the same methods, and will not be repeated here. The reference target water level for groundwater in this embodiment refers to the pre-set control target water level within the second historical period, reflecting the effective water level control values ​​adopted to control salinity and ensure moisture. It can be manually set or solved in reverse based on multi-objective optimization (e.g., using a target soil salinity value less than a preset salinity threshold and a target soil moisture value greater than a preset moisture threshold as optimization objectives, performing water-salt migration simulation based on predicted soil salinity values, and thus solving in reverse for the groundwater level that meets the optimization objectives to obtain the reference target water level for groundwater).

[0072] In one embodiment, after obtaining the second historical monitoring information and its pre-associated groundwater reference target level, the historical value of soil salinity in the second historical monitoring information can be used as input, and the corresponding groundwater reference target level can be used as output to train a preset initial analysis model, thereby obtaining the analysis model. In this embodiment, the initial analysis model can be a neural network model.

[0073] Optionally, before obtaining the reference target water level of groundwater pre-associated with the second historical monitoring information, the method further includes:

[0074] Based on the second historical monitoring information and the preset regulating water levels of groundwater in various regions, the salt transport of saline-alkali land was simulated to obtain the simulation information corresponding to the preset regulating water levels of groundwater in various regions. Among them, the simulation information includes the simulated value of soil salinity and the simulated value of soil moisture.

[0075] Based on the groundwater's preset regulating water level corresponding to the simulation information that meets the preset optimization objectives, the reference target water level of the groundwater is obtained; wherein, the preset optimization objectives include that the simulated value of soil salinity is less than the preset salinity threshold and the simulated value of soil moisture is greater than the preset moisture threshold.

[0076] Specifically, the preset groundwater regulation level represents a pre-set desired groundwater level that can be achievable through regulation. Salt transport in saline-alkali land can be simulated based on second historical monitoring information and the preset groundwater regulation levels for each location. For example, the second historical monitoring information can be used as boundary conditions, and the preset groundwater regulation levels for each location can be substituted into existing hydrodynamic and salt transport equations to simulate the dynamic response of soil salinity and soil moisture, obtaining simulation information corresponding to the preset groundwater regulation levels for each location. This allows for the understanding of simulated soil salinity and soil moisture values ​​after groundwater is regulated to the preset regulation level, based on the environment corresponding to the second historical monitoring information. Furthermore, the simulated soil salinity value being less than a preset salinity threshold and the simulated soil moisture value being greater than a preset moisture threshold can be used as a preset optimization objective. This allows for the reverse calculation of at least one set of preset groundwater regulation levels that satisfy the preset optimization objective.

[0077] In one embodiment, after obtaining the preset regulating water level of groundwater corresponding to the simulation information that satisfies the preset optimization objective, it can be directly used as the reference target water level of groundwater. Optionally, the prediction information in this embodiment also includes the predicted water level of groundwater; when there are more than one preset regulating water level of groundwater corresponding to the simulation information that satisfies the preset optimization objective, the target cumulative value corresponding to the difference between the preset regulating water level of groundwater and the corresponding predicted water level of groundwater at different times can be further obtained, and the preset regulating water level of groundwater corresponding to the smallest target cumulative value can be used as the reference target water level of groundwater, thereby satisfying the preset optimization conditions while also helping to reduce water waste.

[0078] In this embodiment, a preset groundwater level that matches the second historical monitoring information and meets preset optimization conditions is generated by simulating salt transport using second historical monitoring information and preset groundwater regulation levels in various regions. This yields a reference target groundwater level that matches the second historical monitoring information, which is beneficial for providing accurate and reliable label data for training the analysis model. This ensures the rationality of the target groundwater level generated by the analysis model and helps ensure that when regulating saline-alkali land based on the target groundwater level, the target value of soil salinity in the saline-alkali land is less than the preset salinity threshold and the target value of soil moisture is greater than the preset moisture threshold in the future period.

[0079] Optionally, the water pumps include pumping pumps and irrigation pumps; the target groundwater level includes multiple sub-target water levels arranged in time sequence; a water level regulation strategy is generated based on the target groundwater level, and the pumps are controlled to start or stop based on the water level regulation strategy, including:

[0080] Obtain current monitoring information for saline-alkali land; the current monitoring information includes the current value of soil salinity, the current value of soil moisture, and the current groundwater level;

[0081] When the current value of soil salinity is greater than the preset salinity threshold, and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the water pump is turned on until the preset shutdown condition is met.

[0082] When the current soil moisture value is less than the preset moisture threshold and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the irrigation pump is turned on until the preset shutdown condition is met.

[0083] Specifically, in this embodiment, the water pump refers to drainage equipment used to lower the groundwater level, such as a deep well pump or drainage pipe, typically installed in a drainage ditch or well, and can be started and stopped via a control signal. The irrigation pump refers to irrigation equipment used to raise the groundwater level or replenish soil moisture, such as a drip irrigation pump or sprinkler pump, which can be connected to a water source and the land plot via pipelines. In this embodiment, the target groundwater level includes multiple sub-target water levels arranged in a time sequence. Each sub-target water level represents a phased control value of the target groundwater level over a future period, for example, a sub-target water level corresponding to each of the next 72 hours, forming a time sequence. The current monitoring information in this embodiment refers to the currently collected data on the environmental status of saline-alkali land, including the current value of soil salinity, the current value of soil moisture, and the current groundwater level.

[0084] In one embodiment, after obtaining the current monitoring information of the saline-alkali land, it can be determined whether the current value of soil salinity is greater than a preset salinity threshold. If so, the sub-target water level corresponding to the current moment can be extracted, and the current deviation between the current water level and the sub-target water level can be determined. When the current deviation is greater than a preset deviation, the water pump can be controlled to start until a preset shutdown condition is met (e.g., the current deviation is less than the preset deviation). Simultaneously, it can also be determined whether the current value of soil moisture is less than a preset moisture threshold. If so, the sub-target water level corresponding to the current moment can be extracted, and the current deviation between the current water level and the sub-target water level can be determined. When the current deviation is greater than a preset deviation, the irrigation pump can be controlled to start until a preset shutdown condition is met.

[0085] Optionally, in this embodiment, controlling the water pump to start has a higher priority than controlling the irrigation pump to start. When both pump start commands are detected simultaneously, the command to control the water pump to start is executed first.

[0086] In this embodiment, the target groundwater level includes multiple sub-target water levels arranged chronologically. These sub-target water levels can provide a reliable reference for water level adjustment at different times (or different time stages) in the future, facilitating precise and reliable dynamic adjustment of the groundwater level based on the corresponding sub-target water levels. After obtaining the current monitoring information of the saline-alkali land, it can be determined whether the current soil salinity value is greater than a preset salinity threshold. If so, it indicates a potential risk of salinization. At this time, it can be determined whether the current deviation between the current groundwater level and the corresponding sub-target water level is greater than a preset deviation (e.g., ±0.1m). If not, it indicates that the current groundwater level is not significantly different from the sub-target water level that can prevent the risk of salinization from worsening (i.e., meeting the preset optimization target). Even if the groundwater level is not adjusted at present, the risk of salinization will not be aggravated. In this case, there is no need to control the water pump to start, which not only ensures the effectiveness of saline-alkali land treatment but also helps to save water resources. If so, it means that the current groundwater level is very likely to exacerbate the risk of salinization. In this case, it is necessary to control the water pump to be turned on until the preset shutdown conditions are met. This will help lower the groundwater level, reduce the upward movement of salt, and thus intervene in the risk of salinization in advance.

[0087] Meanwhile, after obtaining the current monitoring information of the saline-alkali land, this embodiment can also determine whether the current soil moisture value is less than the preset moisture threshold. If so, it indicates that the current soil moisture is insufficient, and there is a risk of restricted vegetation growth or land drying. At this time, it is further determined whether the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation. If not, it indicates that although the current groundwater level is low, it is still within a controllable range and close to the set phased sub-target water level. Even without immediate intervention, it will not exacerbate the risk of land drying. At this time, not starting the irrigation pump is beneficial to avoid unnecessary water resource input and energy consumption. If so, it indicates that the current groundwater level is significantly lower than the sub-target water level for the corresponding period, and the soil is already in a state of water shortage. It is difficult to quickly restore the water balance by relying solely on natural processes, and there is a risk of continued drought and deterioration. At this time, controlling the irrigation pump to start until the preset shutdown condition is met is beneficial to inject an appropriate amount of water into the underground aquifer, gradually raise the groundwater level, enhance the soil capillary support capacity, and promote the recovery of surface soil moisture.

[0088] Thus, this embodiment assesses whether the risks of salinization and land drying will further intensify at different times in the future through a water level regulation strategy. Water pumps are activated only when necessary to reduce salinization or land drying risks. This ensures that the groundwater level stably tracks the optimal target (i.e., the target groundwater level), thereby ensuring the stability of the saline-alkali land regulation effect while effectively preventing resource waste and equipment wear caused by excessive regulation or frequent start-ups and shutdowns.

[0089] Optionally, the preset shutdown conditions include the current deviation being less than the preset deviation, and / or the continuous operating time of the pumping pump or the irrigation pump being greater than the preset duration.

[0090] In this embodiment, the preset shutdown conditions include the current deviation being less than a preset deviation, and / or the continuous operating time of the pumping or irrigation pump exceeding a preset duration (e.g., 2 hours). When the current deviation is less than the preset deviation, it indicates that the groundwater level has been adjusted to within the allowable error range of the target water level, signifying that the control effect has met expectations and the risk of salinity shift or soil moisture deficit has been effectively mitigated. At this time, the system can safely shut down the pumps to avoid excessive drainage or irrigation, ensuring the stability and ecological safety of the groundwater system. However, when the continuous operating time of the pumping or irrigation pump exceeds the preset duration, although the groundwater level has not yet been adjusted to within the allowable error range of the target water level, continued long-term operation of the pumps may pose safety risks. Shutting down the pumps in this case helps ensure their sustainable operation. The pumps can be restarted after a preset shutdown time (e.g., 30 minutes) until the preset shutdown conditions are met again.

[0091] Optionally, after controlling the water pump to start, and / or after controlling the irrigation pump to start, the method further includes:

[0092] When the current deviation is detected to be less than the preset deviation, return to the step of obtaining the first historical monitoring information of the saline-alkali land in the first historical period.

[0093] In this embodiment, after the water pump for pumping or irrigation is turned on, the current water level change can be continuously monitored. When the current deviation is detected to be less than the preset deviation, it is determined that the current stage of regulation is completed. At this time, the process can return to the step of obtaining the first historical monitoring information of the saline-alkali land in the first historical period (such as re-obtaining the historical monitoring information of 72 hours before the current time point, which now includes the latest data after regulation), and repeat the subsequent salinity prediction, target water level generation and water pump control process, thereby achieving rolling optimization.

[0094] Optionally, after returning to the step of obtaining the first historical monitoring information of the saline-alkali land within the first historical period, the method further includes:

[0095] When the historical value of soil salinity is less than the preset salinity threshold and the historical value of soil moisture is greater than the preset moisture threshold for a duration exceeding the preset duration (e.g., 10 days), the historical value of soil salinity within the preset duration is used as input and the corresponding historical groundwater level is used as output to train the analysis model, thereby performing incremental training on the analysis model and realizing online optimization of the model.

[0096] Optionally, in this embodiment, before controlling the water pump to start or stop based on the water level regulation strategy, the method further includes: generating a prompt message based on the water level regulation strategy and sending the prompt message to the interactive device; when a confirmation execution command is received from the interactive device, controlling the water pump to start or stop based on the water level regulation strategy; when an intervention execution command is received from the interactive device, updating the water level regulation strategy based on the intervention execution command, and controlling the water pump to start or stop according to the updated water level regulation strategy. In this embodiment, the interactive device may include a user-held mobile terminal. Before executing the water level regulation strategy, it can generate a prompt message (such as text information corresponding to the water level regulation strategy) based on the water level regulation strategy and send it to the interactive device, so that the user can confirm or modify the water level regulation strategy, further improving the reliability of saline-alkali land treatment.

[0097] like Figure 2 As shown, an embodiment of the present invention provides a groundwater regulation device 200 for saline-alkali land, comprising:

[0098] The acquisition module 210 is used to acquire the first historical monitoring information of the saline-alkali land in the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater.

[0099] The prediction module 220 is used to input the first historical monitoring information into a pre-built prediction model to obtain the predicted value of the soil salinity in the future period.

[0100] Analysis module 230 is used to input the predicted value of soil salinity into a pre-built analysis model to obtain the target water level of groundwater in the future time period; wherein, the target water level of groundwater is used to constrain the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period.

[0101] The control module 240 is used to generate a water level regulation strategy based on the target water level of the groundwater, and to control the water pump to start or stop based on the water level regulation strategy.

[0102] The groundwater regulation device and groundwater regulation method for saline-alkali land provided in this embodiment can produce basically the same technical effects, and will not be described in detail here.

[0103] like Figure 3 As shown, an electronic device 300 provided in this embodiment of the invention includes a memory 310 and a processor 320; the memory 310 is used to store a computer program; the processor 320 is used to implement the groundwater regulation method for saline-alkali land as described above when the computer program is executed.

[0104] Alternatively, an electronic device 300 includes a memory 310 and a processor 320 coupled to the memory 310; the memory 310 is configured to store a computer program; and the processor 320 is configured to perform the following operations when the computer program is executed:

[0105] Obtain the first historical monitoring information of saline-alkali land within the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater;

[0106] The first historical monitoring information is input into a pre-built prediction model to obtain the predicted value of soil salinity in the future period.

[0107] The predicted value of soil salinity is input into a pre-built analysis model to obtain the target water level of groundwater in the future time period; wherein, the target water level of groundwater is used to constrain the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period.

[0108] A water level regulation strategy is generated based on the target water level of the groundwater, and the water pump is controlled to start or stop based on the water level regulation strategy.

[0109] The electronic device provided in this embodiment and the groundwater regulation method for saline-alkali land can produce basically the same technical effects, and will not be described again here.

[0110] This invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the groundwater regulation method for saline-alkali land as described above.

[0111] Alternatively, a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the following operations:

[0112] Obtain the first historical monitoring information of saline-alkali land within the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater;

[0113] The first historical monitoring information is input into a pre-built prediction model to obtain the predicted value of soil salinity in the future period.

[0114] The predicted value of soil salinity is input into a pre-built analysis model to obtain the target water level of groundwater in the future time period; wherein, the target water level of groundwater is used to constrain the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period.

[0115] A water level regulation strategy is generated based on the target water level of the groundwater, and the water pump is controlled to start or stop based on the water level regulation strategy.

[0116] The computer-readable storage medium provided in this embodiment and the groundwater regulation method for saline-alkali land can produce basically the same technical effects, and will not be described again here.

[0117] The present invention will now be described an electronic device 300 that can serve as a server or client of the present invention, which is an example of a hardware device that can be applied to various aspects of the present invention. Electronic device 300 is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device 300 can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0118] Electronic device 300 includes a computing unit that can perform various appropriate actions and processes based on a computer program stored in read-only memory (ROM) or a computer program loaded from a storage unit into random access memory (RAM). The RAM may also store various programs and data required for device operation. The computing unit, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0119] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc. In this application, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of the present invention according to actual needs. Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units can be implemented in hardware or as software functional units.

[0120] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A method for regulating groundwater in saline-alkali land, characterized in that, include: Obtain the first historical monitoring information of saline-alkali land within the first historical period; wherein, the first historical monitoring information includes the historical value of soil salinity, the historical value of soil moisture, and the historical water level of groundwater; The first historical monitoring information is input into a pre-built prediction model to obtain the predicted value of soil salinity in the future period. The predicted soil salinity value is input into a pre-built analysis model to obtain the target groundwater level for the future time period. The target groundwater level is used to constrain the target soil salinity value to be less than a preset salinity threshold and the target soil moisture value to be greater than a preset moisture threshold for the future time period. Before inputting the predicted soil salinity value into the pre-built analysis model to obtain the target groundwater level for the future time period, the method further includes: obtaining second historical monitoring information of the saline-alkali land within a second historical time period, and obtaining a reference target groundwater level pre-associated with the second historical monitoring information. The second historical time period is prior to the first historical time period. The historical value of soil salinity in the second historical monitoring information is used as input, and the corresponding... The reference target water level of the groundwater is used as the output to train a preset initial analysis model to obtain the analysis model. Before obtaining the reference target water level of the groundwater that is pre-associated with the second historical monitoring information, the method further includes: simulating salt transport in the saline-alkali land based on the second historical monitoring information and the preset regulating water levels of each groundwater level to obtain simulation information corresponding to the preset regulating water levels of each groundwater level; wherein, the simulation information includes the simulated value of soil salinity and the simulated value of soil moisture; the reference target water level of the groundwater is obtained according to the preset regulating water level of the groundwater corresponding to the simulation information that satisfies the preset optimization objective; wherein, the preset optimization objective includes that the simulated value of soil salinity is less than the preset salinity threshold and the simulated value of soil moisture is greater than the preset moisture threshold. A water level regulation strategy is generated based on the target water level of the groundwater, and the water pump is controlled to start or stop based on the water level regulation strategy.

2. The method for regulating groundwater in saline-alkali land according to claim 1, characterized in that, The first historical monitoring information also includes historical values ​​of water and salt transport characteristics; Before obtaining the first historical monitoring information of the saline-alkali land within the first historical time period, the method further includes: Obtain historical meteorological information of the area where the saline-alkali land is located during the first historical period; The historical meteorological information is input into a pre-constructed feature model to obtain historical values ​​of the water and salt transport characteristics; wherein, the feature model includes an evapotranspiration model, and the water and salt transport characteristics include reference crop evapotranspiration.

3. The method for regulating groundwater in saline-alkali land according to claim 1, characterized in that, The water pumps include pumping pumps and irrigation pumps; the target groundwater level includes multiple sub-target water levels arranged in chronological order; the process of generating a water level regulation strategy based on the target groundwater level and controlling the pumps to start or stop based on the water level regulation strategy includes: Obtain the current monitoring information of the saline-alkali land; wherein the current monitoring information includes the current value of soil salinity, the current value of soil moisture, and the current water level of groundwater; When the current value of the soil salinity is greater than the preset salinity threshold, and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the water pump is controlled to start until the preset shutdown condition is met. When the current value of the soil moisture is less than the preset moisture threshold and the current deviation between the current groundwater level and the corresponding sub-target water level is greater than the preset deviation, the irrigation pump is controlled to start until the preset shutdown condition is met.

4. The method for regulating groundwater in saline-alkali land according to claim 3, characterized in that, The preset shutdown conditions include the current deviation being less than the preset deviation, and / or the continuous operating time of the pumping pump or the irrigation pump being greater than the preset duration.

5. The method for regulating groundwater in saline-alkali land according to claim 3, characterized in that, After the water pump is turned on, and / or after the irrigation pump is turned on, the method further includes: When the current deviation is detected to be less than the preset deviation, return to the step of obtaining the first historical monitoring information of the saline-alkali land in the first historical period.

6. A groundwater regulation device for saline-alkali land, characterized in that, include: The acquisition module is used to acquire the first historical monitoring information of saline-alkali land within a first historical period; wherein, the first historical monitoring information includes historical values ​​of soil salinity, historical values ​​of soil moisture, and historical groundwater levels; The prediction module is used to input the first historical monitoring information into a pre-built prediction model to obtain the predicted value of the soil salinity in the future period. An analysis module is used to input the predicted value of soil salinity into a pre-built analysis model to obtain the target water level of groundwater in the future time period. The target water level constrains the target value of soil salinity to be less than a preset salinity threshold and the target value of soil moisture to be greater than a preset moisture threshold in the future time period. Before inputting the predicted value of soil salinity into the pre-built analysis model to obtain the target water level of groundwater in the future time period, the module further includes: acquiring second historical monitoring information of the saline-alkali land in a second historical time period, and acquiring a reference target water level of groundwater pre-associated with the second historical monitoring information. The second historical time period precedes the first historical time period. The historical value of soil salinity in the second historical monitoring information is used as input. The corresponding reference target water level of the groundwater is used as the output to train a preset initial analysis model to obtain the analysis model; before obtaining the reference target water level of the groundwater that is pre-associated with the second historical monitoring information, the method further includes: simulating salt transport in the saline-alkali land based on the second historical monitoring information and the preset regulating water level of each groundwater, to obtain simulation information corresponding to the preset regulating water level of each groundwater; wherein, the simulation information includes the simulated value of soil salinity and the simulated value of soil moisture; the reference target water level of the groundwater is obtained according to the preset regulating water level of the groundwater corresponding to the simulation information that meets the preset optimization target; wherein, the preset optimization target includes the simulated value of soil salinity being less than the preset salinity threshold and the simulated value of soil moisture being greater than the preset moisture threshold. The control module is used to generate a water level regulation strategy based on the target water level of the groundwater, and to control the water pump to start or stop based on the water level regulation strategy.

7. An electronic device, characterized in that, Including memory and processor; The memory is used to store computer programs; The processor is used to implement the groundwater regulation method for saline-alkali land as described in any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the groundwater regulation method for saline-alkali land as described in any one of claims 1 to 5.

Images