Soil salinity and alkalinity evaluation method based on quaternary geological feature analysis

Abstract

The invention relates to a soil salinity and alkalinity assessment method based on quaternary geological feature analysis, and belongs to the technical field of saline-alkali land assessment.The method includes the steps that a migration area is assessed and estimated, monitoring network construction is conducted through a salinity migration route and the migration area estimated in saline-alkali land, and the salinity and alkalinity of the saline-alkali land are assessed in combination with migration estimation time; the monitoring network is dynamically adjusted, finally, a soil improvement scheme of the saline-alkali soil is made according to the soil salinity data obtained by the monitoring network in real time, and a soil improvement direction is made according to the soil improvement scheme of the saline-alkali soil. According to the method, the monitoring network is constructed in the estimated salt migration route and the estimated migration area of the saline-alkali soil, the monitoring area of the monitoring network is dynamically adjusted in combination with the estimated migration time, the monitoring cost can be reduced, the soil environment is synchronously improved and the plant stress resistance is enhanced through flora division and cooperation, and the application prospect is wide. The saline-alkali soil improvement effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of saline-alkali land grain tasting, and in particular to a soil salinity assessment method based on Quaternary geological feature analysis. Background Art

[0002] Quaternary geology is a branch of geology that focuses on the study of geological events, landform evolution, climate change, and biological evolution in the Quaternary period of Earth's history. The study of this discipline is of great significance for understanding changes in the Earth's environment, predicting future climate change, and protecting the ecological environment. Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to incomplete statistics from UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares. The formation of alkaline soil and alkaline soil is mostly related to the accumulation of carbonates in the soil, so the alkalinity is generally high, and plants can hardly survive in severe saline-alkali soil areas. In the process of utilization, saline-alkali land can be simply divided into light saline-alkali land, moderate saline-alkali land, and heavy saline-alkali land. Light saline-alkali land refers to land with a germination rate of 70%-80% and a salt content of less than 0.3%; heavy saline-alkali land refers to land with a salt content of more than 0.6% and a germination rate of less than 50%; the middle part is moderate saline-alkali land (expressed in pH value: pH value of light saline-alkali land: 7.1-8.5, pH value of moderate saline-alkali land: 8.5-9.5, pH value of heavy saline-alkali land: above 9.5). The methods of improving saline-alkali land include water conservancy improvement, agricultural technology improvement, chemical improvement, biological improvement, salt drainage through concealed pipes, and sand mixing and volume reduction. However, for saline-alkali improvement, the existing microbial agents are mostly targeted at a single function (such as nitrogen fixation and phosphorus solubilization), and lack synergy with plant salt tolerance, resulting in the improvement effect not meeting expectations. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and provides a soil salinity assessment method based on Quaternary geological characteristics analysis.

[0004] To achieve the above object, the technical solution adopted by the present invention is: The first aspect of the present invention provides a soil salinity assessment method based on Quaternary geological characteristics analysis, comprising the following steps: Obtain the geographical location information of the current target saline-alkali area, and estimate the migration area of ​​the target saline-alkali area in combination with the terrain structure to obtain the estimated migration route of the salt in the saline-alkali land; Collecting the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, and combining it with the soil salinity data of the current target saline-alkali land to estimate the migration area within a preset time, and obtaining the estimated migration area; By building a monitoring network based on the estimated migration routes and areas of salt in saline-alkali land, and dynamically adjusting the monitoring network based on the estimated migration time; A soil improvement plan for saline-alkali land is formulated based on soil salinity data obtained in real time through a monitoring network, and a soil improvement direction is formulated based on the soil improvement plan for saline-alkali land.

[0005] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, the geographical location information of the current target saline-alkali area is obtained, and the migration area of ​​the target saline-alkali area is estimated in combination with the terrain structure to obtain the estimated migration route of the salt in the saline-alkali land, specifically: Obtaining geographical location information of the current target saline-alkali area, performing map retrieval according to the geographical location information of the current target saline-alkali area, and obtaining a digital elevation model of the current target saline-alkali area; Setting several weather conditions, combining the digital elevation model of the current target saline-alkali area and the weather conditions to simulate the migration area of ​​the target saline-alkali land through virtual reality technology, and obtaining several migration points; Connect two adjacent migration points to generate migration routes of saline-alkali land under different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within a preset time; Based on the weather condition characteristics of the current target saline-alkali area within the preset time and the migration route of the saline-alkali land under different weather conditions, the estimated salt migration route of the saline-alkali land is obtained, and the estimated salt migration route of the saline-alkali land is output.

[0006] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land is collected, and the migration area within a preset time is estimated in combination with the soil salinity data of the current target saline-alkali land, and the estimated migration area is obtained, specifically: Collecting the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land and the soil salinity data of the current target saline-alkali land, and obtaining the soil salt concentration data that the soil can accommodate at most within a unit volume according to the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land; Acquire soil permeability data of soil salinity data under current soil conditions based on the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, and estimate the penetration depth according to the soil permeability data of soil salinity data under the current soil conditions; Obtain soil salt concentration data in the current saline-alkali land, and estimate the penetration depth, the maximum soil salt concentration data that the soil can accommodate per unit volume, and the current soil salt concentration data in the saline-alkali land to estimate the migration area within a preset time based on the soil permeability data of the soil salt data under the previous soil conditions; Through migration estimation, an estimated migration area is obtained, and the estimated migration area is output.

[0007] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, a monitoring network is constructed by building the estimated salt migration route and estimated migration area in the saline-alkali land, and the monitoring network is dynamically adjusted in combination with the estimated migration time, specifically: By arranging sensors on the estimated migration route and estimated migration area of ​​the saline-alkali land and building a monitoring network, the estimated migration time of the salt in each estimated migration area on the estimated migration route of the saline-alkali land is obtained; The monitoring frequency is set based on the estimated time of migration in each estimated migration area on the estimated migration route of the salt in the saline-alkali land, and if the current timestamp is within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is increased; If the current timestamp is not within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is reduced, and the data collection frequency of the monitoring network is optimized and adjusted.

[0008] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, a soil improvement plan for saline-alkali land is formulated according to the soil salinity data obtained in real time by the monitoring network, specifically: Acquire soil salinity data in each area in real time through a monitoring network, acquire excessive soil salinity data types based on the soil salinity data in each area, and construct a retrieval tag based on the excessive soil salinity data types; Based on the search tag, a search is performed through big data to obtain a number of colony types suitable for the current saline-alkali area, and the same number of colony types suitable for the current saline-alkali area are selected from the colony types suitable for the current saline-alkali area according to the same type of soil salt data that exceeds the standard; constructing a composite bacterial community based on the same number of colony types suitable for the current saline-alkali area, and determining whether there are interacting colony types in the composite bacterial community; When there are colony types that interact with each other, if the interacting colony types produce side effects, the composite bacterial community is replanned until there are no side effects between the colony types in the composite bacterial community; When there are interacting colony types between colony types, if the interacting colony types do not produce side effects, the composite bacterial community is output; when there are no interacting colony types between colony types, the composite bacterial community is output and a soil improvement plan for saline-alkali land is constructed.

[0009] Furthermore, in the soil salinity assessment method based on the analysis of the Quaternary geological characteristics, the soil improvement direction is formulated according to the soil improvement plan for the saline-alkali land, specifically: Acquire the climate and environmental data of the current geographical location of the saline-alkali land, and calculate the soil improvement efficiency of each colony type in the soil improvement plan of the saline-alkali land under the climate and environmental data of the current geographical location of the saline-alkali land; Setting a soil improvement efficiency threshold, and determining whether the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is greater than the soil improvement efficiency threshold; When the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is greater than the soil improvement efficiency threshold, outputting a soil improvement direction according to the soil improvement plan for the saline-alkali land; When the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is not greater than the soil improvement efficiency threshold, the soil improvement plan for the saline-alkali land is reset until they are all greater than the soil improvement efficiency threshold.

[0010] The second aspect of the present invention provides a soil salinity assessment system based on Quaternary geological characteristics analysis, including a memory and a processor, wherein the memory includes a soil salinity assessment method program based on Quaternary geological characteristics analysis, and when the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by the processor, any step of the soil salinity assessment method based on Quaternary geological characteristics analysis is implemented.

[0011] The third aspect of the present invention provides a computer-readable storage medium, including a soil salinity assessment method program based on Quaternary geological characteristics analysis. When the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by a processor, any step of the soil salinity assessment method based on Quaternary geological characteristics analysis is implemented.

[0012] The present invention solves the defects existing in the background technology and has the following beneficial effects: The present invention obtains the geographical location information of the current target saline-alkali area, estimates the migration area of ​​the target saline-alkali area in combination with the terrain structure, obtains the estimated migration route of the salt in the saline-alkali land, and then collects the Quaternary geological characteristic data in the estimated migration route of the salt in the saline-alkali land, estimates the migration area within a preset time in combination with the soil salinity data of the current target saline-alkali land, and obtains the estimated migration area, thereby constructing a monitoring network in the estimated migration route and estimated migration area of ​​the saline-alkali land, dynamically adjusting the monitoring network in combination with the estimated migration time, and finally formulating a soil improvement plan for the saline-alkali land according to the soil salinity data obtained in real time by the monitoring network, and formulating a soil improvement direction according to the soil improvement plan for the saline-alkali land. The present invention constructs a monitoring network in the estimated migration route and estimated migration area of ​​the saline-alkali land, dynamically adjusts the monitoring area of ​​the monitoring network in combination with the estimated migration time, and can reduce the cost of monitoring. In addition, the present invention improves the soil environment and enhances plant stress resistance synchronously through the division of labor and cooperation of the microbial community, thereby improving the improvement effect of the saline-alkali land. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The overall flow chart of the soil salinity assessment method based on the analysis of Quaternary geological characteristics is shown; Figure 2 The system block diagram of the soil salinity assessment system based on the analysis of Quaternary geological characteristics is shown. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0017] like Figure 1 As shown, the first aspect of the present invention provides a soil salinity assessment method based on Quaternary geological characteristics analysis, comprising the following steps: S102: Obtaining the geographical location information of the current target saline-alkali area, and estimating the migration area of ​​the target saline-alkali area in combination with the terrain structure, and obtaining the estimated migration route of the saline-alkali land; S104: collecting the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, and performing migration estimation within a preset time in combination with the soil salinity data of the current target saline-alkali land to obtain the estimated migration area; S106: constructing a monitoring network based on the estimated migration route and estimated migration area of ​​salt in the saline-alkali land, and dynamically adjusting the monitoring network based on the estimated migration time; S108: Formulate a soil improvement plan for saline-alkali land based on the soil salinity data obtained in real time through the monitoring network, and formulate a soil improvement direction based on the soil improvement plan for saline-alkali land.

[0018] It should be noted that the present invention constructs a monitoring network based on the estimated salt migration route and estimated migration area in the saline-alkali land, and dynamically adjusts the monitoring area of ​​the monitoring network in combination with the estimated time of migration, thereby reducing the cost of monitoring. In addition, the present invention improves the soil environment and enhances plant resistance simultaneously through division of labor and cooperation among microbiota, thereby improving the improvement effect of the saline-alkali land.

[0019] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, the geographical location information of the current target saline-alkali area is obtained, and the migration area of ​​the target saline-alkali area is estimated in combination with the terrain structure to obtain the estimated migration route of the salt in the saline-alkali land, specifically: Obtaining the geographical location information of the current target saline-alkali area, performing map retrieval based on the geographical location information of the current target saline-alkali area, and obtaining the digital elevation model of the current target saline-alkali area; Set several weather conditions, combine the digital elevation model of the current target saline-alkali area and weather conditions to simulate the migration area of ​​the target saline-alkali land through virtual reality technology, and obtain several migration points; Connect two adjacent migration points to generate migration routes of saline-alkali land under different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within a preset time; Based on the weather condition characteristics of the current target saline-alkali area within a preset time and the migration route of the saline-alkali land under different weather conditions, the estimated salt migration route of the saline-alkali land is obtained, and the estimated salt migration route of the saline-alkali land is output.

[0020] It should be noted that the Digital Elevation Model (DEM) is a physical ground model that represents the ground elevation in the form of a set of ordered numerical arrays. It is a branch of the Digital Terrain Model (DTM), and other terrain feature values ​​can be derived from it. It is generally believed that DTM describes the spatial distribution of linear and nonlinear combinations of various geomorphic factors including elevation, such as slope, aspect, slope change rate, etc., among which DEM is a zero-order simple single digital geomorphic model, and other geomorphic characteristics such as slope, aspect and slope change rate can be derived on the basis of DEM. Due to different weather conditions, the migration of salt in saline-alkali land will be different. Weather conditions include sunny days, rainy days, cloudy days, etc., and rainy days can include heavy rain, moderate rain, light rain, etc., and also include rainfall data within a preset time. Through this method, the estimated migration route of salt in saline-alkali land can be simulated, laying the foundation for salt monitoring.

[0021] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land is collected, and the migration area within a preset time is estimated in combination with the soil salinity data of the current target saline-alkali land to obtain the estimated migration area, specifically: Collect the Quaternary geological characteristic data in the estimated migration route of salt in saline-alkali land and the soil salinity data of the current target saline-alkali land, and obtain the soil salt concentration data that the soil can accommodate at most per unit volume based on the Quaternary geological characteristic data in the estimated migration route of salt in saline-alkali land; Based on the Quaternary geological characteristic data in the estimated migration route of salt in saline-alkali land, soil permeability data of soil salinity data under current soil conditions are obtained, and the penetration depth is estimated according to the soil permeability data of soil salinity data under current soil conditions; Obtain the soil salt concentration data in the current saline-alkali land, and estimate the penetration depth, the maximum soil salt concentration data that the soil can accommodate per unit volume, and the current soil salt concentration data in the saline-alkali land to estimate the migration area within a preset time based on the soil permeability data of the soil salt data under the previous soil conditions; Through migration estimation, the estimated migration area is obtained and the estimated migration area is output.

[0022] It should be noted that due to the differences in the soil permeability data of soil salt data under current soil conditions, the estimated penetration depth and the maximum soil salt concentration data that the soil can accommodate per unit volume of different salt types are different. This method can accurately estimate the migration area and migration depth of salt within a preset time. Quaternary geological characteristic data include soil type, soil permeability, stratigraphic structure data and other data.

[0023] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, a monitoring network is constructed by building the estimated salt migration route and estimated migration area in the saline-alkali land, and the monitoring network is dynamically adjusted in combination with the estimated migration time, specifically: By arranging sensors on the estimated migration route and estimated migration area of ​​the saline-alkali land and building a monitoring network, the estimated migration time of the salt in each estimated migration area on the estimated migration route of the saline-alkali land is obtained; The monitoring frequency is set based on the estimated time of migration in each estimated migration area on the estimated migration route of salt in saline-alkali land. If the current timestamp is within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is increased. If the current timestamp is not within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is reduced, and the data collection frequency of the monitoring network is optimized and adjusted.

[0024] It should be noted that if the current timestamp is within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is increased; if the current timestamp is not within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is reduced. The data collection frequency of the monitoring network is optimized and adjusted, so as to reduce the monitoring cost and further optimize the monitoring of saline-alkali land.

[0025] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, a soil improvement plan for saline-alkali land is formulated according to the soil salinity data obtained in real time by the monitoring network, specifically: The soil salinity data in each area is obtained in real time through the monitoring network, and the types of soil salinity data exceeding the standard are obtained according to the soil salinity data in each area, and a retrieval tag is constructed according to the types of soil salinity data exceeding the standard; Based on the search tag, a search is performed through big data to obtain a number of colony types suitable for the current saline-alkali area, and the same number of colony types suitable for the current saline-alkali area are selected from the colony types suitable for the current saline-alkali area according to the same data type of the soil salt content exceeding the standard; Construct a composite bacterial community based on the same number of colony types suitable for the current saline-alkali area, and determine whether there are interacting colony types in the composite bacterial community; When there are colony types that interact with each other, if the interacting colony types produce side effects, the composite bacterial community is replanned until there are no side effects between the colony types in the composite bacterial community; When there are interacting colony types between colony types, if the interacting colony types do not produce side effects, the composite bacterial community is output; when there are no interacting colony types between colony types, the composite bacterial community is output and a soil improvement plan for saline-alkali land is constructed.

[0026] It should be noted that, in fact, colony types such as desalination functional bacteria, acid-producing bacteria, ACC deaminase bacteria, etc. may coexist or attack each other. When there are interacting colony types between colony types, if the interacting colony types produce side effects (mutual attack), then the composite bacterial community is unreasonable. When there are interacting colony types between colony types, if the interacting colony types do not produce side effects, this meets the requirements, and this can further optimize the structural type of the colony. Through the division of labor and cooperation of the bacterial community, the salt-alkali improvement can be directly carried out without any side effects, and the soil environment can be improved simultaneously and the plant resistance can be enhanced.

[0027] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, the soil improvement direction is formulated according to the soil improvement plan for saline-alkali land, specifically: Obtain the climate and environmental data of the current geographical location of the saline-alkali land, and calculate the soil improvement efficiency of each colony type in the soil improvement plan for the saline-alkali land under the climate and environmental data of the current geographical location of the saline-alkali land; Set a soil improvement efficiency threshold, and determine whether the soil improvement efficiency of each colony type under the climate and environmental data of the current saline-alkali land location is greater than the soil improvement efficiency threshold; When the soil improvement efficiency of each colony type under the climate and environmental data of the current geographical location of the saline-alkali land is greater than the soil improvement efficiency threshold, the soil improvement direction is formulated according to the soil improvement plan of the saline-alkali land; When the soil improvement efficiency of each colony type under the climate and environmental data of the current geographical location of the saline-alkali land is not greater than the soil improvement efficiency threshold, the soil improvement plan for the saline-alkali land is reset until they are all greater than the soil improvement efficiency threshold.

[0028] It should be noted that different climatic and environmental characteristics will lead to inconsistent metabolism of the colonies, which will result in different soil improvement efficiencies for each colony type under the climatic and environmental data of the current geographical location of the saline-alkali land. This method can further optimize the soil improvement plan for the saline-alkali land and improve the improvement efficiency.

[0029] In addition, the method further comprises: Obtain the target plant types in the current saline-alkali area through big data, and construct a search tag based on the target plant types in the current saline-alkali area, perform a search based on the search tag, and obtain the growth index data of the target plant types under different climatic environments; Acquire the climate and environmental characteristic data of the current saline-alkali area, and acquire the growth index data of the target plant type under the current climate environment according to the climate characteristic data of the current saline-alkali area and the growth index data of the target plant type under different climate environments; Acquire growth index data of the target crop type in the current improvement process, and calculate the Euclidean distance value between the growth index data of the target crop type in the current improvement process and the growth index data of the target plant type under the current climate environment; When the Euclidean distance between the growth index data of the target crop type in the current improvement process and the growth index data of the target plant type under the current climate environment is lower than the preset Euclidean distance, the current improvement of the saline-alkali area is stopped; When the Euclidean distance value between the growth index data of the target crop type in the current improvement process and the growth index data of the target plant type under the current climate environment is not less than the preset Euclidean distance value, the current saline-alkali area improvement continues.

[0030] It should be noted that since the growth index data (such as growth rate) of the target plant type under different climatic environments are different, by monitoring the growth index data of the target plant type under the current climatic environment and combining the growth index data of the target plant type under different climatic environments, if the Euclidean distance value of the growth index data of the target crop type in the current improvement process and the growth index data of the target plant type under the current climatic environment is not lower than the preset Euclidean distance value, then the improvement will continue; otherwise, the improvement will not continue. By combining the crop needs in saline-alkali land, a dynamic analysis can be made based on the actual situation to determine whether the requirements are met, thereby avoiding excessive improvement and reducing the cost of improvement.

[0031] In addition, the method further comprises: Acquire the salt characteristic change data of the soil in the current saline-alkali area within a preset time, and perform chemical synthesis analysis based on the salt characteristic change data of the soil in the current saline-alkali area within the preset time; By chemical synthesis analysis, the characteristic salt transformation products of the soil in the current saline-alkali area within a preset time are obtained, and it is determined whether the composite bacterial community can continue to repair or absorb the characteristic salt transformation products of the soil in the current saline-alkali area within a preset time; When the composite bacterial community is able to continue to repair or absorb the salt characteristic transformation of the soil in the current saline-alkali area within a preset time, continue to repair according to the current composite bacterial community; When the composite bacterial community is unable to repair or absorb the salt characteristic transformation of the soil in the current saline-alkali area within a preset time, the current composite bacterial community is reset.

[0032] It should be noted that, since the soil salt within the preset time may be contaminated or the migration and transformation of substances may cause the original soil salt to be changed into other compounds, and this type of compound may be a stubborn compound type, and the original complex bacterial community may no longer be suitable. This method can further optimize the complex bacterial community and improve the restoration effect of saline-alkali land.

[0033] The second aspect of the present invention provides a soil salinity assessment system 4 based on Quaternary geological characteristics analysis, including a memory 41 and a processor 42. The memory 41 includes a soil salinity assessment method program based on Quaternary geological characteristics analysis. When the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by the processor 42, any step of the soil salinity assessment method based on Quaternary geological characteristics analysis is implemented.

[0034] The third aspect of the present invention provides a computer-readable storage medium, including a soil salinity assessment method program based on Quaternary geological characteristics analysis. When the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by a processor, any step of the soil salinity assessment method based on Quaternary geological characteristics analysis is implemented.

[0035] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0036] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0037] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0038] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0039] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods of each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A soil salinity assessment method based on the analysis of Quaternary geological characteristics, characterized in that: The following steps are involved: Obtain the geographical location information of the current target saline-alkali area, and estimate the migration area of ​​the target saline-alkali area in combination with the terrain structure to obtain the estimated migration route of the salt in the saline-alkali land; Collecting the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, and combining it with the soil salinity data of the current target saline-alkali land to estimate the migration area within a preset time, and obtaining the estimated migration area; By building a monitoring network based on the estimated migration routes and areas of salt in saline-alkali land, and dynamically adjusting the monitoring network based on the estimated migration time; A soil improvement plan for saline-alkali land is formulated based on soil salinity data obtained in real time through a monitoring network, and a soil improvement direction is formulated based on the soil improvement plan for saline-alkali land.

2. The soil salinity assessment method based on Quaternary geological characteristics analysis according to claim 1 is characterized in that: Obtain the geographical location information of the current target saline-alkali area, and estimate the migration area of ​​the target saline-alkali area in combination with the terrain structure, and obtain the estimated migration route of the salt in the saline-alkali land, specifically: Obtaining geographical location information of the current target saline-alkali area, performing map retrieval according to the geographical location information of the current target saline-alkali area, and obtaining a digital elevation model of the current target saline-alkali area; Setting several weather conditions, combining the digital elevation model of the current target saline-alkali area and the weather conditions to simulate the migration area of ​​the target saline-alkali land through virtual reality technology, and obtaining several migration points; Connect two adjacent migration points to generate migration routes of saline-alkali land under different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within a preset time; Based on the weather condition characteristics of the current target saline-alkali area within the preset time and the migration route of the saline-alkali land under different weather conditions, the estimated salt migration route of the saline-alkali land is obtained, and the estimated salt migration route of the saline-alkali land is output.

3. The soil salinity assessment method based on Quaternary geological characteristics analysis according to claim 1 is characterized in that: Collect the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, combine the soil salinity data of the current target saline-alkali land to estimate the migration area within a preset time, and obtain the estimated migration area, specifically: Collecting the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land and the soil salinity data of the current target saline-alkali land, and obtaining the soil salt concentration data that the soil can accommodate at most within a unit volume according to the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land; Acquire soil permeability data of soil salinity data under current soil conditions based on the Quaternary geological characteristic data in the estimated salt migration route of the saline-alkali land, and estimate the penetration depth according to the soil permeability data of soil salinity data under the current soil conditions; Obtain soil salt concentration data in the current saline-alkali land, and estimate the penetration depth, the maximum soil salt concentration data that the soil can accommodate per unit volume, and the current soil salt concentration data in the saline-alkali land to estimate the migration area within a preset time based on the soil permeability data of the soil salt data under the previous soil conditions; Through migration estimation, an estimated migration area is obtained, and the estimated migration area is output.

4. The soil salinity assessment method based on Quaternary geological characteristics analysis according to claim 1 is characterized in that: By building a monitoring network based on the estimated salt migration route and estimated migration area in saline-alkali land, and combining the estimated migration time, the monitoring network is dynamically adjusted, specifically: By arranging sensors on the estimated migration route and estimated migration area of ​​the saline-alkali land and building a monitoring network, the estimated migration time of the salt in each estimated migration area on the estimated migration route of the saline-alkali land is obtained; The monitoring frequency is set based on the estimated time of migration in each estimated migration area on the estimated migration route of the salt in the saline-alkali land, and if the current timestamp is within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is increased; If the current timestamp is not within the estimated time of migration in the estimated migration area, the monitoring frequency of the current estimated migration area is reduced, and the data collection frequency of the monitoring network is optimized and adjusted.

5. The soil salinity assessment method based on Quaternary geological characteristics analysis according to claim 1 is characterized in that: According to the soil salinity data obtained in real time through the monitoring network, a soil improvement plan for saline-alkali land is formulated, specifically: Acquire soil salinity data in each area in real time through a monitoring network, acquire excessive soil salinity data types based on the soil salinity data in each area, and construct a retrieval tag based on the excessive soil salinity data types; Based on the search tag, a search is performed through big data to obtain a number of colony types suitable for the current saline-alkali area, and the same number of colony types suitable for the current saline-alkali area are selected from the colony types suitable for the current saline-alkali area according to the same type of soil salt data that exceeds the standard; constructing a composite bacterial community based on the same number of colony types suitable for the current saline-alkali area, and determining whether there are interacting colony types in the composite bacterial community; When there are colony types that interact with each other, if the interacting colony types produce side effects, the composite bacterial community is replanned until there are no side effects between the colony types in the composite bacterial community; When there are interacting colony types between colony types, if the interacting colony types do not produce side effects, the composite bacterial community is output; when there are no interacting colony types between colony types, the composite bacterial community is output and a soil improvement plan for saline-alkali land is constructed.

6. The soil salinity assessment method based on Quaternary geological characteristics analysis according to claim 1 is characterized in that: According to the soil improvement plan for saline-alkali land, the soil improvement direction is formulated, specifically: Acquire the climate and environmental data of the current geographical location of the saline-alkali land, and calculate the soil improvement efficiency of each colony type in the soil improvement plan of the saline-alkali land under the climate and environmental data of the current geographical location of the saline-alkali land; Setting a soil improvement efficiency threshold, and determining whether the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is greater than the soil improvement efficiency threshold; When the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is greater than the soil improvement efficiency threshold, outputting a soil improvement direction according to the soil improvement plan for the saline-alkali land; When the soil improvement efficiency of each of the colony types under the climate and environmental data of the current geographical location of the saline-alkali land is not greater than the soil improvement efficiency threshold, the soil improvement plan for the saline-alkali land is reset until they are all greater than the soil improvement efficiency threshold.

7. Soil salinity assessment system based on Quaternary geological characteristics analysis, characterized in that: It comprises a memory and a processor, wherein the memory comprises a soil salinity assessment method program based on Quaternary geological characteristics analysis, and when the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by the processor, the steps of the soil salinity assessment method based on Quaternary geological characteristics analysis as described in any one of claims 1 to 6 are implemented.

8. A computer-readable storage medium, characterized in that: It includes a soil salinity assessment method program based on Quaternary geological characteristics analysis. When the soil salinity assessment method program based on Quaternary geological characteristics analysis is executed by a processor, the steps of the soil salinity assessment method based on Quaternary geological characteristics analysis as described in any one of claims 1 to 6 are implemented.

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