Soil Salinity Assessment Method Based on Quaternary Geological Feature Analysis

Abstract

The present invention relates to a method for evaluating soil salinity based on the analysis of Quaternary geological characteristics, belonging to the technical field of saline-alkali land evaluation. The present invention evaluates and estimates the migration area, thereby constructs a monitoring network along the predicted salt migration route and in the predicted migration area of the saline-alkali land. Combining with the predicted migration time, the monitoring network is dynamically adjusted. Finally, a soil improvement plan for the saline-alkali land is formulated based on the soil salinity data obtained in real time by the monitoring network, and the soil improvement direction is determined according to the soil improvement plan for the saline-alkali land. By constructing a monitoring network along the predicted salt migration route and in the predicted migration area of the saline-alkali land, and combining with the predicted migration time to dynamically adjust the monitoring area of the monitoring network, the present invention can reduce the monitoring cost. Moreover, through the division of labor and cooperation of the microbial community, the soil environment is simultaneously improved and the stress resistance of plants is enhanced, thereby improving the improvement effect of the saline-alkali land.

Description

Technical Field

[0001] The present invention relates to the technical field of saline-alkali land cereal technology, and particularly to a method for evaluating soil salinity based on the analysis of Quaternary geological characteristics. Background Art

[0002] Quaternary geology is a branch of geology that focuses on studying geological events, geomorphic evolution, climate change, and biological evolution during the Quaternary period in the Earth's history. The research of this discipline is of great significance for understanding the Earth's environmental changes, predicting future climate changes, and protecting the ecological environment. Saline-alkali land is a type of salt accumulation, which refers to the situation where the salts contained in the soil affect the normal growth of crops. According to incomplete statistics by UNESCO and the Food and Agriculture Organization, the area of saline-alkali land worldwide is 954.38 million hectares. The formation of alkali soil and alkalized soil is mostly related to the accumulation of carbonates in the soil, so the alkalization degree is generally high, and plants can hardly survive in severely saline-alkali soil areas. In the process of using saline-alkali land, generally speaking, it can be divided into light saline-alkali land, medium saline-alkali land, and heavy saline-alkali land. Light saline-alkali land means its emergence rate is 70%-80% and its salt content is below three per thousand; heavy saline-alkali land means its salt content exceeds six per thousand and its emergence rate is below 50%; the middle part is medium saline-alkali land (expressed by pH value: the pH value of light saline-alkali land is 7.1-8.5, the pH value of medium saline-alkali land is 8.5-9.5, and the pH value of heavy saline-alkali land is above 9.5). The methods for improving saline-alkali land include water conservancy improvement, agricultural technology improvement, chemical improvement, biological improvement, subsurface pipe drainage for salt removal, and mixing sand to reduce volume. Currently, for saline-alkali improvement, existing microbial inoculants mostly target single functions (such as nitrogen fixation and phosphorus solubilization), and there is insufficient synergy with plant salt tolerance, resulting in the improvement effect not meeting expectations. Summary of the Invention

[0003] The present invention overcomes the deficiencies of the prior art and provides a method for evaluating soil salinity based on the analysis of Quaternary geological characteristics.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] The first aspect of the present invention provides a method for evaluating soil salinity based on the analysis of Quaternary geological characteristics, including the following steps:

[0006] Obtain the geographical location information of the current target saline-alkali area, and combine the terrain structure to estimate the migration area of the target saline-alkali area, and obtain the predicted migration route of the salt in the saline-alkali land;

[0007] Collect the Quaternary geological characteristic data in the predicted migration route of the salt in the saline-alkali land, and combine the soil salt data of the current target saline-alkali land to estimate the migration within a preset time for the migration area, and obtain the predicted migration area;

[0008] Construct a monitoring network along the predicted migration route and in the predicted migration area of the saline-alkali land, and dynamically adjust the monitoring network in combination with the predicted migration time.

[0009] Formulate a soil improvement plan for the saline-alkali land based on the soil salinity data obtained in real time by the monitoring network, and determine the soil improvement direction according to the soil improvement plan for the saline-alkali land.

[0010] Furthermore, in the soil salinity assessment method based on the analysis of the Quaternary geological characteristics, 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 predicted migration route of the salt in the saline-alkali land, specifically:

[0011] Obtain the geographical location information of the current target saline-alkali area, perform a map search based on the geographical location information of the current target saline-alkali area, and obtain the digital elevation model of the current target saline-alkali area.

[0012] Set several weather conditions, and simulate the migration area of the target saline-alkali land through virtual reality technology in combination with the digital elevation model and weather conditions of the current target saline-alkali area to obtain several migration points.

[0013] Connect two adjacent migration points to generate the migration routes of the saline-alkali land under several different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within a preset time.

[0014] Obtain the predicted migration route of the salt in the saline-alkali land based on the weather condition characteristics of the current target saline-alkali area within the preset time and the migration routes of the saline-alkali land under different weather conditions, and output the predicted migration route of the salt in the saline-alkali land.

[0015] Furthermore, in the soil salinity assessment method based on the analysis of the Quaternary geological characteristics, collect the Quaternary geological characteristic data in the predicted migration route of the salt in the saline-alkali land, and perform a migration prediction for the migration area within a preset time in combination with the soil salinity data of the current target saline-alkali land to obtain the predicted migration area, specifically:

[0016] Collect the Quaternary geological characteristic data in the predicted migration route of the salt in the saline-alkali land and the soil salinity data of the current target saline-alkali land, and obtain the soil salinity concentration data that the soil can accommodate at most per unit volume according to the Quaternary geological characteristic data in the predicted migration route of the salt in the saline-alkali land.

[0017] Obtain the soil permeability data of the soil salt data under the current soil conditions based on the Quaternary geological feature data in the predicted migration route of the salt in the saline-alkali land, and estimate the penetration depth according to the soil permeability data of the soil salt data under the current soil conditions;

[0018] Obtain the soil salt concentration data in the current saline-alkali land, and based on the penetration depth estimated according to the soil permeability data of the soil salt data under the previous soil conditions, the maximum soil salt concentration data that can be accommodated in the soil per unit volume, and the soil salt concentration data in the current saline-alkali land, estimate the migration in the migration area within a preset time;

[0019] Through the migration estimate, obtain the estimated migration area and output the estimated migration area.

[0020] Further, in the soil salinity assessment method based on the analysis of Quaternary geological features, construct a monitoring network in the predicted migration route and the estimated migration area of the salt in the saline-alkali land, and dynamically adjust the monitoring network in combination with the estimated migration time. Specifically:

[0021] Arrange sensors in the predicted migration route and the estimated migration area of the salt in the saline-alkali land, and construct a monitoring network to obtain the estimated migration time of the migration on each estimated migration area in the predicted migration route of the salt in the saline-alkali land;

[0022] Set the monitoring frequency based on the estimated migration time of the migration on each estimated migration area in the predicted migration route of the salt in the saline-alkali land. If the current timestamp is within the estimated migration time of the migration on the estimated migration area, increase the monitoring frequency of the current estimated migration area;

[0023] If the current timestamp is not within the estimated migration time of the migration on the estimated migration area, reduce the monitoring frequency of the current estimated migration area and optimize and adjust the data acquisition frequency of the monitoring network.

[0024] Further, in the soil salinity assessment method based on the analysis of Quaternary geological features, formulate a soil improvement plan for the saline-alkali land according to the soil salt data obtained by the monitoring network in real time. Specifically:

[0025] Obtain the soil salt data in each area through the monitoring network in real time, obtain the type of soil salt data that exceeds the standard according to the soil salt data in each area, and construct a retrieval label according to the type of soil salt data that exceeds the standard;

[0026] Based on the retrieval label, conduct a search through big data to obtain several colony types suitable for the current saline-alkali area, and select the same number of colony types suitable for the current saline-alkali area from the several colony types suitable for the current saline-alkali area according to the data with the same type of soil salt data that exceeds the standard;

[0027] Construct a composite microbial 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 microbial community;

[0028] When there are interacting colony types among the colony types, if the interacting colony types produce side effects, re-plan the composite microbial community until there are no side effects among the colony types in the composite microbial community;

[0029] When there are interacting colony types among the colony types, if the interacting colony types do not produce side effects, output the composite microbial community. When there are no interacting colony types among the colony types, output the composite microbial community and construct a soil improvement plan for the saline-alkali land.

[0030] Further, in the soil salinity evaluation method based on the analysis of Quaternary geological characteristics, determine the soil improvement direction according to the soil improvement plan for the saline-alkali land, specifically:

[0031] Obtain the climate environment data of the geographical location where the current saline-alkali land is located, and count the soil improvement efficiency of each colony type in the soil improvement plan for the saline-alkali land under the climate environment data of the geographical location where the current saline-alkali land is located;

[0032] Set a soil improvement efficiency threshold, and determine whether the soil improvement efficiency of each of the colony types under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold;

[0033] When the soil improvement efficiency of each of the colony types under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold, output the soil improvement direction determined according to the soil improvement plan for the saline-alkali land;

[0034] When the soil improvement efficiency of each of the colony types under the climate environment data of the geographical location where the current saline-alkali land is located is not all greater than the soil improvement efficiency threshold, reset the soil improvement plan for the saline-alkali land until it is all greater than the soil improvement efficiency threshold.

[0035] The second aspect of the present invention provides a soil salinity evaluation system based on the analysis of Quaternary geological characteristics, including a memory and a processor. The memory includes a soil salinity evaluation method program based on the analysis of Quaternary geological characteristics. When the soil salinity evaluation method program based on the analysis of Quaternary geological characteristics is executed by the processor, the steps of any of the soil salinity evaluation methods based on the analysis of Quaternary geological characteristics are implemented.

[0036] A third aspect of the present invention provides a computer-readable storage medium, including a program for a method of evaluating soil salinity based on Quaternary geological characteristics. When the program for the method of evaluating soil salinity based on Quaternary geological characteristics is executed by a processor, the steps of any of the methods of evaluating soil salinity based on Quaternary geological characteristics are implemented.

[0037] The present invention solves the defects existing in the background art and has the following beneficial effects:

[0038] The present invention estimates the migration area of the target saline-alkali land by obtaining the geographical location information of the current target saline-alkali area and combining 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, and combines the soil salt data of the current target saline-alkali land to estimate the migration in the preset time, obtains the estimated migration area, and thus constructs a monitoring network along the estimated migration route of the salt in the saline-alkali land and the estimated migration area, combines the estimated migration time, dynamically adjusts the monitoring network, and finally formulates a soil improvement plan for the saline-alkali land according to the soil salt data obtained in real time by the monitoring network, and formulates a soil improvement direction according to the soil improvement plan for the saline-alkali land. By constructing a monitoring network along the estimated migration route of the salt in the saline-alkali land and the estimated migration area and combining the estimated migration time to dynamically adjust the monitoring area of the monitoring network, the present invention can reduce the monitoring cost, and by the division of labor and cooperation of the flora, the soil environment is improved synchronously and the stress resistance of plants is enhanced, so as to improve the improvement effect of the saline-alkali land. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain the drawings of other embodiments without creative efforts.

[0040] Figure 1 Shows the overall flowchart of the method for evaluating soil salinity based on Quaternary geological characteristics;

[0041] Figure 2 Shows the system block diagram of the system for evaluating soil salinity based on Quaternary geological characteristics. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0044] As Figure 1 shown, the first aspect of the present invention provides a method for evaluating soil salinity based on the analysis of Quaternary geological characteristics, including the following steps:

[0045] S102: Obtain the geographical location information of the current target saline-alkali area, and combine the terrain structure to estimate the migration area of the target saline-alkali area, and obtain the estimated migration route of the salt in the saline-alkali land.

[0046] S104: Collect the Quaternary geological characteristic data in the estimated migration route of the salt in the saline-alkali land, and combine the soil salt data of the current target saline-alkali land to estimate the migration area within a preset time, and obtain the estimated migration area.

[0047] S106: Construct a monitoring network along the estimated migration route of the salt in the saline-alkali land and the estimated migration area, and dynamically adjust the monitoring network in combination with the estimated migration time.

[0048] S108: Formulate a soil improvement plan for the saline-alkali land according to the soil salt data obtained in real time by the monitoring network, and determine the soil improvement direction according to the soil improvement plan for the saline-alkali land.

[0049] It should be noted that by constructing a monitoring network along the estimated migration route of the salt in the saline-alkali land and the estimated migration area, and dynamically adjusting the monitoring area of the monitoring network in combination with the estimated migration time, the present invention can reduce the monitoring cost. Moreover, through the division of labor and cooperation of the flora, the present invention can simultaneously improve the soil environment and enhance the stress resistance of plants, thereby improving the improvement effect of the saline-alkali land.

[0050] Further, in the method for evaluating soil salinity based on the analysis of Quaternary geological characteristics, obtaining the geographical location information of the current target saline-alkali area, and combining the terrain structure to estimate the migration area of the target saline-alkali area, and obtaining the estimated migration route of the salt in the saline-alkali land, specifically:

[0051] Obtain the geographical location information of the current target saline-alkali area, perform a map search according to the geographical location information of the current target saline-alkali area, and obtain the digital elevation model of the current target saline-alkali area.

[0052] Set several weather conditions, and simulate the migration area of the target saline-alkali land through virtual reality technology in combination with the digital elevation model of the current target saline-alkali area and the weather conditions to obtain several migration points.

[0053] Connect adjacent migration points in pairs to generate migration routes of saline-alkali land under several different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within a preset time;

[0054] Based on the weather condition characteristics of the current target saline-alkali area within a preset time and the migration routes of saline-alkali land under different weather conditions, obtain the estimated migration route of the salt content of the saline-alkali land, and output the estimated migration route of the salt content of the saline-alkali land.

[0055] It should be noted that the Digital Elevation Model (DEM) is a digital ground model that represents the ground elevation in the form of an ordered numerical array. It is a branch of the Digital Terrain Model (DTM). Other various terrain characteristic values can be derived from it. Generally, DTM is used to describe the spatial distribution of linear and non-linear combinations of various geomorphic factors including elevation, such as slope, aspect, and slope change rate. Among them, 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 based on DEM. Due to different weather conditions, the salt migration in saline-alkali land will produce differences. 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 the salt content in saline-alkali land can be simulated, laying a foundation for the monitoring of salt content.

[0056] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, collect the Quaternary geological characteristic data in the estimated migration route of the salt content of the saline-alkali land, and combine it with the soil salt content data of the current target saline-alkali land to estimate the migration in the migration area within a preset time, and obtain the estimated migration area. Specifically:

[0057] Collect the Quaternary geological characteristic data in the estimated migration route of the salt content of the saline-alkali land and the soil salt content 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 according to the Quaternary geological characteristic data in the estimated migration route of the salt content of the saline-alkali land;

[0058] Obtain the soil permeability data of the soil salt content data under the current soil conditions based on the Quaternary geological characteristic data in the estimated migration route of the salt content of the saline-alkali land, and estimate the penetration depth according to the soil permeability data of the soil salt content data under the current soil conditions;

[0059] 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 migration area within a preset time based on the soil permeability data of the soil salt data under the previous soil conditions and the soil salt concentration data in the current saline-alkali land;

[0060] Through the migration estimation, obtain the estimated migration area and output the estimated migration area.

[0061] It should be noted that due to the differences in the penetration depth estimated by the soil permeability data of the soil salt data and the maximum soil salt concentration data that the soil can accommodate per unit volume under the current soil conditions for different salt types, this method can accurately estimate data such as the migration area and migration depth of salts within a preset time. The Quaternary geological characteristic data includes data such as soil type, soil permeability, and stratigraphic structure data.

[0062] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, construct a monitoring network for the salt estimated migration route and the estimated migration area in the saline-alkali land, and dynamically adjust the monitoring network in combination with the estimated migration time. Specifically:

[0063] Arrange sensors on the salt estimated migration route and the estimated migration area in the saline-alkali land, and construct a monitoring network to obtain the estimated migration time of each estimated migration area on the salt estimated migration route in the saline-alkali land;

[0064] Set the monitoring frequency based on the estimated migration time of each estimated migration area on the salt estimated migration route in the saline-alkali land. If the current timestamp is within the estimated migration time of the estimated migration area, increase the monitoring frequency of the current estimated migration area;

[0065] If the current timestamp is not within the estimated migration time of the estimated migration area, reduce the monitoring frequency of the current estimated migration area to optimize and adjust the data acquisition frequency of the monitoring network.

[0066] It should be noted that if the current timestamp is within the estimated migration time of the estimated migration area, increase the monitoring frequency of the current estimated migration area. If the current timestamp is not within the estimated migration time of the estimated migration area, reduce the monitoring frequency of the current estimated migration area to optimize and adjust the data acquisition frequency of the monitoring network, so as to reduce the monitoring cost and further optimize the monitoring of the saline-alkali land.

[0067] Furthermore, in the soil salinity assessment method based on the analysis of Quaternary geological characteristics, formulate a soil improvement plan for the saline-alkali land according to the soil salt data obtained in real time by the monitoring network. Specifically:

[0068] Obtain the soil salinity data in each area in real time through monitoring the network, obtain the types of soil salinity data that exceed the standard according to the soil salinity data in each area, and construct a retrieval tag according to the types of soil salinity data that exceed the standard;

[0069] Retrieve through big data based on the retrieval tag, obtain several colony types suitable for the current saline-alkali area, and select the same number of colony types suitable for the current saline-alkali area from several colony types suitable for the current saline-alkali area according to the data with the same type of soil salinity data that exceeds the standard;

[0070] Construct a composite microbial community based on the same number of colony types suitable for the current saline-alkali area, and determine whether there are colony types with interaction in the composite microbial community;

[0071] When there are colony types with interaction among the colony types, if the colony types with interaction produce side effects, re-plan the composite microbial community until there are no side effects among the colony types in the composite microbial community;

[0072] When there are colony types with interaction among the colony types, if the colony types with interaction do not produce side effects, output the composite microbial community. When there are no colony types with interaction among the colony types, output the composite microbial community and construct a soil improvement plan for the saline-alkali land.

[0073] It should be noted that colony types such as desalination functional bacteria, acid-producing bacteria, ACC deaminase bacteria, etc. In fact, there may be a situation of mutual coexistence or mutual attack among the colonies. When there are colony types with interaction among the colony types, if the colony types with interaction produce side effects (mutual attack), at this time the composite microbial community is unreasonable. When there are colony types with interaction among the colony types, if the colony types with interaction do not produce side effects, this meets the requirements. In this way, the structural type of the colonies can be further optimized. Through the division of labor and cooperation of the microbial community, multi-saline-alkali improvement can be directly carried out without any side effects, synchronously improving the soil environment and enhancing the stress resistance of plants.

[0074] Furthermore, in the soil salinity evaluation method based on the analysis of the Quaternary geological characteristics, determine the soil improvement direction according to the soil improvement plan for the saline-alkali land, specifically:

[0075] Obtain the climate environment data of the geographical location where the current saline-alkali land is located, and count the soil improvement efficiency of each colony type in the soil improvement plan for the saline-alkali land under the climate environment data of the geographical location where the current saline-alkali land is located;

[0076] Set a soil improvement efficiency threshold, and determine whether the soil improvement efficiency of each colony type under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold;

[0077] When the soil improvement efficiency of each colony type under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold, output the soil improvement direction according to the soil improvement plan for the saline-alkali land;

[0078] When the soil improvement efficiency of each colony type under the climate environment data of the geographical location where the current saline-alkali land is located is not all greater than the soil improvement efficiency threshold, reset the soil improvement plan for the saline-alkali land until it is all greater than the soil improvement efficiency threshold.

[0079] It should be noted that due to different climate environment characteristics, the metabolism of colonies will be inconsistent, which will lead to different soil improvement efficiencies of each colony type under the climate environment data of the geographical location where the current saline-alkali land is located. Through this method, the soil improvement plan for the saline-alkali land can be further optimized and the improvement efficiency can be improved.

[0080] In addition, this method also includes:

[0081] Obtain the target plant type in the current saline-alkali area through big data, construct a retrieval tag based on the target plant type in the current saline-alkali area, and perform a retrieval based on the retrieval tag to obtain the growth index data of the target plant type under different climate environments;

[0082] Obtain the climate environment characteristic data of the current saline-alkali area, and obtain 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;

[0083] Obtain the growth index data of the target crop type during the current improvement process, and calculate the Euclidean distance value between the growth index data of the target crop type during the current improvement process and the growth index data of the target plant type under the current climate environment;

[0084] When the Euclidean distance value between the growth index data of the target crop type during 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 value, the improvement of the current saline-alkali area stops;

[0085] When the Euclidean distance value between the growth index data of the target crop type during the current improvement process and the growth index data of the target plant type under the current climate environment is not lower than the preset Euclidean distance value, the improvement of the current saline-alkali area continues.

[0086] It should be noted that since the growth index data (such as growth rate) of the target plant type is different under different climate environments, by monitoring the growth index data of the target plant type under the current climate environment and combining the growth index data of the target plant type under different climate environments, if 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 lower than the preset Euclidean distance value, the improvement continues; otherwise, the improvement does not continue. By combining the crop requirements in the saline-alkali land, it is possible to dynamically analyze whether it meets the requirements according to the actual situation, avoid over-improvement, and reduce the cost of improvement.

[0087] In addition, this method further includes:

[0088] Obtain the data on the change of soil salinity characteristics within a preset time in the current saline-alkali area, and perform chemical synthesis analysis based on the data on the change of soil salinity characteristics within a preset time in the current saline-alkali area;

[0089] Through chemical synthesis analysis, obtain the soil salinity characteristic transformants within a preset time in the current saline-alkali area, and judge whether the composite microbial community can still repair or absorb the soil salinity characteristic transformants within a preset time in the current saline-alkali area;

[0090] When the composite microbial community can still repair or absorb the soil salinity characteristics within a preset time in the current saline-alkali area, continue to repair according to the current composite microbial community;

[0091] When the composite microbial community cannot repair or absorb the soil salinity characteristics within a preset time in the current saline-alkali area, reset the current composite microbial community.

[0092] It should be noted that since the soil salinity within a preset time may be contaminated or there is migration and transformation of substances, the original soil salinity may be changed into other compounds, and such compounds may be of a stubborn compound type. It is possible that the original composite microbial community is no longer suitable. Through this method, the composite microbial community can be further optimized to improve the repair effect of the saline-alkali land.

[0093] The second aspect of the present invention provides a soil salinity evaluation system 4 based on the analysis of Quaternary geological characteristics, including a memory 41 and a processor 42. The memory 41 includes a program for the soil salinity evaluation method based on the analysis of Quaternary geological characteristics. When the program for the soil salinity evaluation method based on the analysis of Quaternary geological characteristics is executed by the processor 42, the steps of any of the soil salinity evaluation methods based on the analysis of Quaternary geological characteristics are implemented.

[0094] A third aspect of the present invention provides a computer-readable storage medium, including a program for a method of evaluating soil salinity based on the analysis of Quaternary geological characteristics. When the program for the method of evaluating soil salinity based on the analysis of Quaternary geological characteristics is executed by a processor, the steps of any of the methods of evaluating soil salinity based on the analysis of Quaternary geological characteristics are implemented.

[0095] In several embodiments provided by 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 merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, 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 various components shown or discussed can be through some interfaces. The indirect coupling or communication connection of the devices or units can be electrical, mechanical, or other forms.

[0096] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units. They can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0097] In addition, in each embodiment of the present invention, the various functional units can all be integrated in one processing unit, or each unit can be separately a unit, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of a combination of hardware and software functional units.

[0098] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above method embodiments. The foregoing storage medium includes various media that can store program codes, such as removable storage devices, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks, or optical discs.

[0099] Alternatively, if the above integrated units of the present invention are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the embodiments of the present invention, in essence or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods of the various embodiments of the present invention. The aforementioned storage medium includes: various media such as removable storage devices, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0100] 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 within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for evaluating soil salinity based on the analysis of Quaternary geological characteristics, characterized in that, It includes 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, and obtain the estimated migration route of the salt in the saline-alkali land; Collect the Quaternary geological feature data in the estimated migration route of the salt in the saline-alkali land, and estimate the migration area within the preset time in combination with the soil salt data of the current target saline-alkali land to obtain the estimated migration area; Construct a monitoring network along the estimated migration route of the salt in the saline-alkali land and the estimated migration area, and dynamically adjust the monitoring network in combination with the estimated migration time; Formulate a soil improvement plan for the saline-alkali land according to the soil salt data obtained in real time by the monitoring network, and determine the soil improvement direction according to the soil improvement plan for the saline-alkali land; 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: Obtain the geographical location information of the current target saline-alkali area, perform a map search according to the geographical location information of the current target saline-alkali area, and obtain the digital elevation model of the current target saline-alkali area; Set several weather conditions, and simulate the migration area of the target saline-alkali land through virtual reality technology in combination with the digital elevation model of the current target saline-alkali area and the weather conditions to obtain several migration points; Connect two adjacent migration points to generate the migration routes of the saline-alkali land under several different weather conditions, and obtain the weather condition characteristics of the current target saline-alkali area within the preset time; Obtain the estimated migration route of the salt in the saline-alkali land based on the weather condition characteristics of the current target saline-alkali area within the preset time and the migration routes of the saline-alkali land under different weather conditions, and output the estimated migration route of the salt in the saline-alkali land; Formulate a soil improvement plan for the saline-alkali land according to the soil salt data obtained in real time by the monitoring network. Specifically: Obtain the soil salt data in each area in real time through the monitoring network, obtain the types of soil salt data that exceed the standard according to the soil salt data in each area, and construct a search tag according to the types of soil salt data that exceed the standard; Perform a search through big data based on the search tag to obtain several colony types suitable for the current saline-alkali area, and select the same number of colony types suitable for the current saline-alkali area from the several colony types suitable for the current saline-alkali area according to the data with the same type of soil salt data that exceeds the standard; Construct a composite flora 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 flora; When there are interacting colony types among the colony types, if the interacting colony types produce side effects, re-plan the composite flora until there are no side effects among the colony types in the composite flora; When there are interacting colony types among the colony types, if the interacting colony types do not produce side effects, output the composite flora. When there are no interacting colony types among the colony types, output the composite flora and construct a soil improvement plan for the saline-alkali land; Determine the soil improvement direction according to the soil improvement plan for the saline-alkali land, specifically as follows: Obtain the climate environment data of the geographical location where the current saline-alkali land is located, and count the soil improvement efficiency of each colony type in the soil improvement plan for the saline-alkali land under the climate environment data of the geographical location where the current saline-alkali land is located; Set a soil improvement efficiency threshold, and determine whether the soil improvement efficiency of each of the colony types under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold; When the soil improvement efficiency of each of the colony types under the climate environment data of the geographical location where the current saline-alkali land is located is greater than the soil improvement efficiency threshold, output the soil improvement direction determined 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 environment data of the geographical location where the current saline-alkali land is located is not all greater than the soil improvement efficiency threshold, reset the soil improvement plan for the saline-alkali land until it is all greater than the soil improvement efficiency threshold.

2. The method for evaluating soil salinity based on the analysis of the geological characteristics of the Quaternary system according to claim 1, wherein Collect the Quaternary geological feature data in the salt prediction migration route of the saline-alkali land, and combine it with the soil salt data of the current target saline-alkali land to estimate the migration area within a preset time, and obtain the estimated migration area, specifically as follows: Collect the Quaternary geological feature data in the salt prediction migration route of the saline-alkali land and the soil salt 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 according to the Quaternary geological feature data in the salt prediction migration route of the saline-alkali land; Obtain the soil permeability data of the soil salt data under the current soil conditions based on the Quaternary geological feature data in the salt prediction migration route of the saline-alkali land, and estimate the penetration depth according to the soil permeability data of the soil salt data under the current soil conditions; Obtain the soil salt concentration data in the current saline-alkali land, and estimate the migration area within a preset time based on the penetration depth estimated according to the soil permeability data of the soil salt data under the current soil conditions, the soil salt concentration data that the soil can accommodate at most per unit volume, and the soil salt concentration data in the current saline-alkali land; Through migration estimation, obtain the estimated migration area and output the estimated migration area.

3. The soil salinity evaluation method based on the analysis of the Quaternary geological characteristics according to claim 1, wherein Construct a monitoring network along the salt prediction migration route and the estimated migration area of the saline-alkali land, and dynamically adjust the monitoring network in combination with the estimated migration time, specifically as follows: Arrange sensors along the salt prediction migration route and the estimated migration area of the saline-alkali land, and construct a monitoring network to obtain the estimated migration time of migration on each estimated migration area along the salt prediction migration route of the saline-alkali land; Set the monitoring frequency based on the estimated migration time of migration on each estimated migration area along the salt prediction migration route of the saline-alkali land. If the current timestamp is within the estimated migration time of migration on the estimated migration area, increase the monitoring frequency of the current estimated migration area; If the current timestamp is not within the estimated migration time of migration on the estimated migration area, decrease the monitoring frequency of the current estimated migration area and optimize and adjust the data collection frequency of the monitoring network.

4. A soil salinity evaluation system based on the analysis of Quaternary geological characteristics, characterized in that, It includes a memory and a processor. The memory includes a program for a method of evaluating soil salinity based on the analysis of Quaternary geological characteristics. When the program for the method of evaluating soil salinity based on the analysis of Quaternary geological characteristics is executed by the processor, the steps of the method of evaluating soil salinity based on the analysis of Quaternary geological characteristics as described in any one of claims 1-3 are implemented.

5. A computer-readable storage medium, characterized in that, It includes a program for a method of evaluating soil salinity based on the analysis of Quaternary geological characteristics. When the program for the method of evaluating soil salinity based on the analysis of Quaternary geological characteristics is executed by the processor, the steps of the method of evaluating soil salinity based on the analysis of Quaternary geological characteristics as described in any one of claims 1-3 are implemented.

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