An improved regional groundwater quality monitoring network design method and system

Abstract

The present invention relates to the field of groundwater quality monitoring technology, and in particular to an improved regional groundwater quality monitoring network design method and system, the method comprising the following steps: obtaining groundwater samples in the region as test samples of the groundwater quality; conducting test analysis on the groundwater quality based on the test samples to obtain groundwater quality information in the region; constructing a groundwater quality monitoring network evaluation model for the region based on the groundwater quality information; analyzing the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result; and optimizing the design of the groundwater quality monitoring network for the region using the model evaluation result. The present invention obtains groundwater quality information through test analysis of groundwater samples, and then constructs a groundwater quality monitoring network evaluation model to optimize the groundwater quality monitoring network, thereby improving the monitoring efficiency of groundwater quality and achieving scientific management of groundwater.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater quality monitoring, and in particular to an improved regional groundwater quality monitoring network design method and system. Background Art

[0002] Groundwater is an important water resource for human survival. Changes in its quality and quantity have a profound impact on human life and the ecological environment. However, problems such as groundwater pollution and overexploitation are becoming increasingly serious, resulting in a series of environmental problems such as bottom subsidence and seawater intrusion, especially in coastal areas. Therefore, long-term, accurate and comprehensive monitoring of groundwater is particularly important.

[0003] The traditional groundwater monitoring network has some shortcomings, such as unreasonable distribution of monitoring sites, incomplete monitoring parameters, untimely data transmission, etc., which result in the monitoring data being unable to fully reflect the groundwater conditions. Therefore, improving the design of the regional groundwater quality monitoring network and enhancing monitoring capabilities are important measures to deal with current groundwater problems.

[0004] In view of this, in the context of the current prominent groundwater problems and the urgent need to improve the capacity of the groundwater quality monitoring network, an improved regional groundwater quality monitoring network design method is proposed. By comprehensively considering various factors and establishing a complete groundwater quality monitoring network, comprehensive, accurate and real-time monitoring of groundwater quality can be achieved, providing strong support for the scientific management and protection of groundwater resources.

[0005] In the design of improving the regional groundwater quality monitoring network, the physical, chemical and biological information of groundwater quality is collected and monitored, the groundwater quality information is used to evaluate the groundwater quality monitoring network, and then the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network are adjusted, thereby achieving negative feedback optimization of the groundwater quality monitoring network. Summary of the invention

[0006] In view of the defects in the prior art, the present invention provides an improved method and system for designing a regional groundwater quality monitoring network.

[0007] In order to achieve the above-mentioned objectives, in a first aspect, the present invention provides an improved method for designing a regional groundwater quality monitoring network, the method comprising the following steps: obtaining groundwater samples in the region as test samples of the groundwater quality; conducting test analysis on the groundwater quality based on the test samples to obtain groundwater quality information of the region; constructing an evaluation model for the groundwater quality monitoring network in the region based on the groundwater quality information; analyzing the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result; and optimizing the design of the groundwater quality monitoring network in the region using the model evaluation result. The present invention obtains groundwater samples from the area as test samples and conducts test analysis to accurately obtain groundwater quality information, thereby providing a reliable data basis for constructing a groundwater quality monitoring network evaluation model. The groundwater quality monitoring network is analyzed according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result, which helps to fully understand the effectiveness and shortcomings of the groundwater quality monitoring network. The model evaluation result is used to optimize the design of the groundwater quality monitoring network, significantly improve the monitoring efficiency and accuracy, ensure the accuracy and reliability of groundwater quality data, provide strong support for water resources management and environmental protection, and realize the scientific management and sustainable development of groundwater resources.

[0008] Optionally, the obtaining of groundwater samples in the area as test samples of the groundwater quality includes: obtaining the hydrogeological parameters and hydrogeological structure of the area as the hydrogeological information set of the area; obtaining the sampling position, sampling depth and sampling time of the groundwater sample based on the analysis of the hydrogeological information set; sampling the groundwater in the area according to the sampling position, the sampling depth and the sampling time to obtain the groundwater sample. The present invention constructs a detailed hydrogeological information set by comprehensively collecting the hydrogeological parameters and hydrogeological structure of the area, provides a solid foundation for the scientific sampling of groundwater samples, determines the sampling position, sampling depth and sampling time based on the in-depth analysis of the hydrogeological information set, ensures the pertinence and effectiveness of the sampling, greatly improves the accuracy and characterization of groundwater sample collection, provides reliable support for subsequent groundwater quality analysis, helps to achieve accurate management and efficient utilization of groundwater resources, and promotes the protection and improvement of water resources.

[0009] Optionally, the test analysis of the groundwater quality based on the test sample to obtain the groundwater quality information of the area includes: performing a physical test analysis on the groundwater quality based on the test sample to obtain the physical information of the groundwater quality in the area; performing a chemical test analysis on the groundwater quality based on the test sample to obtain the chemical information of the groundwater quality in the area; performing a biological test analysis on the groundwater quality based on the test sample to obtain the biological information of the groundwater quality in the area. The present invention systematically obtains the physical information, chemical information and biological information of the groundwater quality by performing a comprehensive test analysis on the test sample in three aspects: physics, chemistry and biology, so as to fully and deeply understand the comprehensive status of regional groundwater quality, provide a scientific basis for groundwater resource management and environmental protection, help to timely discover water quality problems and take effective measures to intervene, and provide effective data support for the subsequent construction of a groundwater quality monitoring network evaluation model.

[0010] Optionally, the construction of the groundwater quality monitoring network evaluation model of the region based on the groundwater quality information includes: preprocessing the groundwater quality information to obtain a standardized data set of groundwater quality in the region; obtaining characteristic information of the groundwater quality information based on the standardized data set of groundwater quality; extracting characteristics of the hydrogeological information set to obtain hydrogeological characteristic information of the region; and constructing the groundwater quality monitoring network evaluation model of the region based on the characteristic information and the hydrogeological characteristic information. The present invention preprocesses and standardizes the groundwater quality information, which can eliminate the differences and noise between data, improve the quality and comparability of data, and provide an accurate and reliable basis for subsequent analysis. By extracting the characteristic information of the groundwater quality information, the law and trend of water quality changes can be more accurately grasped. The groundwater quality monitoring network evaluation model constructed in combination with the hydrogeological characteristic information can more scientifically and objectively evaluate the effectiveness of the groundwater quality monitoring network, provide strong support for the optimization design and adjustment of the groundwater quality monitoring network, and help to achieve accurate and efficient monitoring of groundwater resource water quality information.

[0011] Optionally, preprocessing the groundwater quality information to obtain a standardized groundwater quality data set for the region includes:

[0012]

[0013] in, Standardizing data on groundwater quality, is the original data of groundwater quality information, is the mean of the original data, is the maximum value of the original data, The present invention preprocesses the groundwater quality information and converts it into a standardized data set to ensure the accuracy and consistency of subsequent data analysis, eliminate outliers in the original data and fill in missing values, and unify the data format and dimension, so that different groundwater quality information data are comparable. The standardized data set not only improves the efficiency of data analysis, but also enhances the reliability of the results, provides data support for the subsequent quantitative evaluation and optimization of the groundwater quality monitoring network, and provides a reference basis for water resources management decisions, which is conducive to achieving more scientific and accurate groundwater protection and management.

[0014] Optionally, the step of obtaining characteristic information of the groundwater quality information based on the groundwater quality standardized data set includes:

[0015]

[0016] in, is the characteristic information indicator, is the number of decision trees, is the traversal count of the decision tree, For the The out-of-bag error of the decision tree before adding random interference, For the The out-of-bag error of the decision tree after adding random interference. The present invention extracts characteristic information based on the standardized data set of groundwater quality, can deeply understand the groundwater quality status, reveal the laws and trends of groundwater quality data, and provide a more accurate and comprehensive technical perspective for groundwater quality monitoring and evaluation. The acquisition of groundwater quality characteristic information is helpful to discover the deficiencies of the groundwater quality monitoring network, and provide a scientific basis for formulating targeted improvement measures. It also provides data reference for the optimization design and performance evaluation of the groundwater monitoring network, and promotes the refinement and intelligence of groundwater resource management.

[0017] Optionally, the analysis of the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result includes: evaluating the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model to obtain a model evaluation index; analyzing the groundwater quality monitoring network according to the model evaluation index to obtain the model evaluation result. The present invention evaluates the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model, can quantify the effectiveness of the groundwater quality monitoring network, measure the rationality of the groundwater quality monitoring network layout and the accuracy of data collection through specific model evaluation indicators, and obtain detailed model evaluation results through in-depth analysis based on the model evaluation indicators, so as to provide data support and decision-making basis for the optimization and improvement of the groundwater quality monitoring network, ensure the continuous improvement and efficiency improvement of groundwater quality monitoring work, help to accurately grasp the dynamic changes of groundwater quality, and realize the sustainable utilization of groundwater resources.

[0018] Optionally, the evaluating the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model to obtain a model evaluation index includes:

[0019]

[0020] in, is the model evaluation indicator, is the total amount of physical characteristic information, is the traversal count of the physical feature information, is the weight coefficient of the physical feature information, is the physical characteristic information, is the total amount of chemical characteristic information, is the traversal count of chemical feature information, is the weight coefficient of chemical characteristic information, For chemical characteristic information, is the total amount of biometric information, is the traversal count of biometric information, is the weight coefficient of biometric information, For biometric information, is the total amount of hydrogeological characteristic information, is the traversal count of hydrogeological characteristic information, is the weight coefficient of hydrogeological characteristic information, For hydrogeological characteristics information, is the weight coefficient of the characteristic random error, The present invention evaluates the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model. The scientific and objective model evaluation indicators reflect the operating efficiency of the groundwater quality monitoring network and the quality of monitoring data. It can accurately identify the weak links and potential risk points in the groundwater quality monitoring network, and provide a clear direction and scientific basis for the subsequent optimization of the groundwater quality monitoring network. It not only helps to improve the accuracy and timeliness of groundwater quality monitoring work, but also effectively ensures the monitoring coverage of groundwater resources and the reliability of monitoring data.

[0021] Optionally, the use of the model evaluation results to optimize the design of the groundwater quality monitoring network in the area includes: adjusting the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network according to the model evaluation results; completing the optimization design of the groundwater quality monitoring network based on the adjustment of the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators. The present invention adjusts the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network according to the model evaluation results, which can significantly improve the efficiency and accuracy of monitoring, ensure that the groundwater quality monitoring network is more in line with the needs of actual engineering applications, and the layout of the optimized groundwater quality monitoring network can more effectively capture the changes in groundwater quality, effectively discover potential problems and take timely measures. At the same time, the monitoring frequency and monitoring indicators are reasonably adjusted, which reduces unnecessary waste of resources and improves the monitoring efficiency of groundwater quality. Through the optimized design, the groundwater quality monitoring network is made more scientific and efficient, providing solid data support and technical support for the protection and management of groundwater resources.

[0022] In the second aspect, the present invention provides an improved regional groundwater quality monitoring network design system, the system executes the improved regional groundwater quality monitoring network design method provided by the present invention, the system includes an input device, an output device, a processor and a memory, and its gain is that: the hardware facilities integrated by the present invention have excellent performance, the input device, the output device, the processor and the memory are interconnected, the information transmission between the various components is smooth, and an efficient information processing system is constructed through the interaction of multiple hardware facilities. The improved regional groundwater quality monitoring network design system provided by the present invention ensures the smooth operation of various links such as input, output, processing and storage by integrating high-performance hardware facilities, the internal information transmission of the system is efficient, and the efficient cooperation between various hardware is ensured, and a powerful information processing platform is constructed, which not only improves the data processing speed and accuracy, but also enhances the stability and reliability of the system, provides a solid technical support for the optimization design of the regional groundwater quality monitoring network, significantly improves the optimization design efficiency and quality of the groundwater quality monitoring network, and helps to achieve a more scientific and reasonable structural layout of the groundwater quality monitoring network. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A flow chart of an improved method for designing a regional groundwater quality monitoring network according to an embodiment of the present invention;

[0024] Figure 2 This is a system framework diagram for designing an improved regional groundwater quality monitoring network according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described herein are only for illustration and are not intended to limit the present invention. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is obvious to those of ordinary skill in the art that these specific details do not need to be adopted to implement the present invention. In other examples, in order to avoid confusing the present invention, known circuits, software or methods are not specifically described.

[0026] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. In addition, it should be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale.

[0027] See also Figure 1 An embodiment of the present invention provides an improved method for designing a regional groundwater quality monitoring network, the method comprising the following steps:

[0028] S1. Obtaining a groundwater sample in the area as a test sample for the groundwater quality.

[0029] Among them, S1 specifically includes the following steps:

[0030] S11. Acquire the hydrogeological parameters and hydrogeological structure of the region as a hydrogeological information set of the region.

[0031] In this embodiment, a hydrogeological survey is performed on the area to obtain the hydrogeological parameters and hydrogeological structure of the area.

[0032] Specifically, the permeability of the aquifer in the area is evaluated by conducting a pumping test; in the pumping test, the changes in the groundwater level are observed and recorded by controlling the pumping rate and time, and the permeability coefficient is calculated; the hydrogeological parameters of the area are obtained through a water injection test, and the water supply and water conductivity of the aquifer are calculated by injecting a certain amount of water into the borehole and observing the water level rise; by monitoring the changes in parameters such as the groundwater level and water quality, statistical analysis methods are used to reveal the dynamic changes of the groundwater system and then calculate the water level conductivity.

[0033] Specifically, the hydrogeological structure of the area was analyzed through comprehensive geological exploration and hydrological analysis. It was found that the hydrogeological structure of the area is mainly composed of multiple layers of strata with different lithology and permeability; the upper part is a thinner soil cover layer, mainly composed of clay and sandy soil, which plays a certain buffering role in the infiltration of surface water and groundwater; below this layer is the aquifer, which is composed of medium-coarse sand, gravel and locally developed fissured limestone; the stratum structure has high permeability and water storage capacity, and is the main storage space for groundwater.

[0034] Among them, there are obvious horizontal and vertical heterogeneities in the interior of the aquifer. The faults and joints formed by geological structure and rock mass changes not only provide flow channels for groundwater, but also affect the distribution pattern of groundwater. In some areas, due to the fragmentation of rocks and the development of cracks, local high permeability zones are formed, while other areas appear as impermeable layers due to the integrity and low permeability of the rocks.

[0035] In addition, there are several underground rivers of varying sizes in the area. They are mainly distributed along fault zones and fissure systems, forming groundwater recharge areas, runoff areas and discharge areas, and play a key role in groundwater recharge, runoff and discharge. There is a close hydraulic connection between the underground rivers and aquifers, which together constitute the framework of the groundwater system in the area.

[0036] S12. Obtaining the sampling location, sampling depth and sampling time of the groundwater sample based on analyzing the hydrogeological information set.

[0037] Specifically, in this embodiment, based on the hydrogeological survey of the area, the information on the recharge area, runoff area and discharge area of ​​groundwater and the characteristics of the aquifer are obtained, representative sampling locations are selected according to the results of the hydrogeological survey, and the number and layout of the sampling locations are reasonably designed to ensure the comprehensiveness and representativeness of the sampling.

[0038] Wherein, the sampling locations are set in the recharge area, runoff area and discharge area of ​​the aquifer.

[0039] More specifically, the sampling depth of groundwater samples is determined based on the hydrogeological parameters and the characteristics of the aquifer, combined with the fluctuation of the groundwater level. The sampling depth must be comprehensive and representative. Sampling points at different depths are set to obtain the most representative groundwater samples to ensure the comprehensive characterization of the groundwater samples.

[0040] Furthermore, the sampling time of the groundwater samples is determined based on the seasonal changes in the groundwater level in the area and combined with the rainfall in the area. The sampling time is selected during a period when the groundwater is relatively stable to obtain relatively stable groundwater samples.

[0041] S13. Sampling the groundwater in the area according to the sampling position, the sampling depth and the sampling time to obtain the groundwater sample.

[0042] In this embodiment, a plurality of representative sampling locations are determined based on the results of the hydrogeological survey; at the sampling locations, a suitable sampling depth is determined based on the characteristics of the aquifer and the change in the groundwater level to ensure that the sampling depth is within the aquifer; after determining the sampling location and sampling depth, a suitable sampling time is selected based on the seasonal change of groundwater; in combination with the sampling location, sampling depth and sampling time, a groundwater sampler is used to collect groundwater samples, and the collected groundwater samples are stored in a pure sampling bottle.

[0043] S2. Conducting test analysis on the groundwater quality based on the test sample to obtain groundwater quality information of the area.

[0044] Among them, S2 specifically includes the following steps:

[0045] S21. Performing a physical test analysis on the groundwater quality based on the test sample to obtain physical information of the groundwater quality in the area.

[0046] Specifically, the test sample is analyzed through physical experimental analysis to obtain the physical information of the groundwater quality, and the physical information of the groundwater quality includes groundwater temperature, groundwater turbidity and groundwater conductivity; the temperature of the test sample is measured by a temperature measuring device to obtain the groundwater temperature information of the area, the turbidity of the test sample is measured by a turbidity sensor to obtain the groundwater turbidity information of the area, and the conductivity of the test sample is obtained by a conductivity sensor to obtain the groundwater conductivity information of the area.

[0047] S22. Perform chemical test analysis on the groundwater quality based on the test sample to obtain chemical information of the groundwater quality in the area.

[0048] Specifically, the test sample is analyzed by chemical experimental analysis to obtain the chemical information of the groundwater quality, and the groundwater quality chemical information includes the ion composition of the groundwater, the pH value of the groundwater and the dissolved oxygen content of the groundwater; the ion composition of the test sample is measured by an ion analysis mass spectrometer to obtain the groundwater ion composition information of the area, the pH value of the test sample is measured by an intelligent pH sensor to obtain the groundwater pH value information of the area, and the dissolved oxygen content of the test sample is obtained by a groundwater dissolved oxygen detector to obtain the groundwater dissolved oxygen content information of the area.

[0049] S23. Perform biological test analysis on the groundwater quality according to the test sample to obtain biological information of the groundwater quality in the area.

[0050] Specifically, the test sample is analyzed through biological experimental analysis to obtain the biological information of the groundwater quality, and the biological information of the groundwater quality includes the microbial indicators of the groundwater, the pathogenic microorganism content of the groundwater and the protozoa situation of the groundwater; the microbial indicators of the test sample are measured by a microbial detector to obtain the microbial indicator information of the groundwater in the area, the pathogenic microorganism content of the test sample is measured by a virus detector to obtain the pathogenic microorganism information of the groundwater in the area, and the protozoa situation of the test sample is observed using an immunofluorescence microscope to obtain the protozoa information of the groundwater in the area.

[0051] S3. Constructing a groundwater quality monitoring network assessment model for the area based on the groundwater quality information.

[0052] Among them, S3 specifically includes the following steps:

[0053] S31. Preprocess the groundwater quality information to obtain a standardized data set of groundwater quality in the area.

[0054] Specifically, based on the data of the groundwater quality physical information, groundwater quality chemical information and groundwater quality biological information, the groundwater quality information data is preprocessed according to the mean value of the data and combined with the maximum and minimum values ​​of the data to obtain a standardized data set, which satisfies the following relationship:

[0055]

[0056] in, Standardizing data on groundwater quality, is the original data of groundwater quality information, is the mean of the original data, is the maximum value of the original data, is the minimum value of the original data.

[0057] S32. Acquire characteristic information of the groundwater quality information based on the groundwater quality standardized data set.

[0058] Specifically, the groundwater quality standardized data set is deeply studied through the random forest model to effectively extract the characteristic information of the groundwater quality information, and n samples are generated through random resampling and n decision trees are trained. Each decision tree randomly selects features for training to form a random forest structure.

[0059] Furthermore, the out-of-bag error is obtained by adding random interference to each decision tree, and then the characteristic information index is calculated, and the characteristic information of the groundwater quality information is screened out based on the characteristic information index.

[0060] The characteristic information index satisfies the following relationship:

[0061]

[0062] in, is the characteristic information indicator, is the number of decision trees, is the traversal count of the decision tree, For the The out-of-bag error of the decision tree before adding random interference, For the Out-of-bag error of a decision tree after adding random interference.

[0063] S33, extracting features from the hydrogeological information set to obtain hydrogeological feature information of the area.

[0064] Specifically, in this embodiment, statistical methods are used to process and analyze the data in the hydrogeological information set; first, by cleaning and preprocessing the data, outliers and redundant information are removed to improve data quality; then, key hydrogeological indicators are selected based on the characteristics of the data; finally, characteristic information of the key hydrogeological indicators is extracted to obtain hydrogeological characteristic information with regional representation.

[0065] S34. Constructing a groundwater quality monitoring network assessment model for the area based on the characteristic information and the hydrogeological characteristic information.

[0066] In this embodiment, the groundwater quality monitoring network evaluation model is constructed based on feature information using a long short-term memory network model.

[0067] Specifically, the geographical location, hydrogeological conditions, soil and rock structure, and groundwater pollution source distribution of the area under study are embedded as fixed input features into the long short-term memory network model, so that in each time step, the input layer of the long short-term memory network model contains the fixed input features, and the fixed input features are propagated in the time step through the weight matrix of the neural network unit structure, so that the constructed groundwater quality monitoring network evaluation model can analyze the compound influence between different characteristic information.

[0068] Furthermore, the characteristic information of the groundwater quality information is gradually input into the neural network unit structure of the long short-term memory network model as input to capture the short-term and long-term time dependencies of the groundwater quality information monitored by the groundwater quality monitoring network. The fixed input features are globally embedded into the long short-term memory network model. The characteristic information of the groundwater quality information interacts with the fixed input features to effectively identify the correlation between the two and obtain fused features. The fused features are dynamically weighted in the gating mechanism of the neural unit structure, so that the constructed groundwater quality monitoring network evaluation model can parse the compound impact of different characteristic information.

[0069] S4. Analyze the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result.

[0070] Wherein, S4 specifically includes the following steps:

[0071] S41. Evaluate the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model to obtain model evaluation indicators.

[0072] Specifically, based on the characteristic information of the groundwater quality information, which includes physical characteristic information, chemical characteristic information and biological characteristic information, and combined with the characteristic random errors of the characteristic information, the groundwater quality monitoring network is analyzed and evaluated using the groundwater quality monitoring network evaluation model, and the model evaluation indicators of the groundwater quality monitoring network are calculated.

[0073] Furthermore, the model evaluation index satisfies the following relationship:

[0074]

[0075] in, is the model evaluation indicator, is the total amount of physical characteristic information, is the traversal count of the physical feature information, is the weight coefficient of the physical feature information, is the physical characteristic information, is the total amount of chemical characteristic information, is the traversal count of chemical feature information, is the weight coefficient of chemical characteristic information, For chemical characteristic information, is the total amount of biometric information, is the traversal count of biometric information, is the weight coefficient of biometric information, For biometric information, is the total amount of hydrogeological characteristic information, is the traversal count of hydrogeological characteristic information, is the weight coefficient of hydrogeological characteristic information, For hydrogeological characteristics information, is the weight coefficient of the characteristic random error, is the characteristic random error.

[0076] S42. Analyze the groundwater quality monitoring network according to the model evaluation index to obtain the model evaluation result.

[0077] In this embodiment, the groundwater quality information monitored by the groundwater quality monitoring network is analyzed according to the model evaluation index, and then the groundwater quality is evaluated and analyzed, thereby achieving performance evaluation of the groundwater quality monitoring network.

[0078] Specifically, groundwater quality characteristic information is used as the monitoring indicator of the groundwater quality monitoring network, and the groundwater quality characteristic information includes groundwater quality physical characteristic information, groundwater quality chemical characteristic information and groundwater quality biological characteristic information; the groundwater quality characteristic information is comprehensively analyzed according to the model evaluation index to complete the effective and accurate analysis of the groundwater quality, and the groundwater quality monitoring network is evaluated to obtain the model evaluation result.

[0079] Among them, the model evaluation results include groundwater quality status evaluation and groundwater quality monitoring network performance evaluation. The groundwater quality status evaluation is composed of a groundwater quality comprehensive index and individual monitoring indicators. The performance evaluation of the groundwater quality monitoring network includes a comprehensive evaluation of the monitoring effectiveness, accuracy and rationality of the groundwater quality monitoring network.

[0080] S5. Utilize the model evaluation results to optimize the design of the groundwater quality monitoring network in the area.

[0081] Among them, S5 specifically includes the following steps:

[0082] S51. Adjust the monitoring point locations, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network according to the model evaluation results.

[0083] Specifically, according to the model evaluation results and in combination with the hydrogeological structure of the area under study, the locations of the monitoring points of the groundwater quality monitoring network are reasonably adjusted to ensure that the monitoring points cover the key locations of the area and to ensure the targeted nature of the groundwater quality monitoring network for groundwater quality monitoring.

[0084] More specifically, in this embodiment, the density of the monitoring points is optimized according to the national groundwater resource zoning, and the density of the monitoring points after adjustment satisfies uniform distribution; based on the analysis of the groundwater quality characteristic information, combined with the groundwater pollution risk analysis, population density and the distribution of agriculture and industry, the density of the monitoring points of the groundwater quality monitoring network is efficiently arranged and adjusted, and under the condition of considering the effective utilization of resources, appropriate monitoring points are added in areas where the density of monitoring points is insufficient to ensure the comprehensiveness of the groundwater quality monitoring network in groundwater quality monitoring.

[0085] Furthermore, based on the model evaluation results, combined with the regional characteristics of the study area and the seasonal changes of the groundwater quality characteristic information, the monitoring frequency of the groundwater quality monitoring network is reasonably and effectively set to ensure that the groundwater quality characteristic information obtained by the groundwater quality monitoring network has high value and representativeness.

[0086] Furthermore, based on the status assessment of the groundwater quality, groundwater quality characteristic information with higher reference value is selected as monitoring indicators for key monitoring, and the monitoring indicators of the groundwater quality monitoring network are screened and adjusted to ensure the accuracy and effectiveness of the groundwater quality monitoring network.

[0087] S52. Complete the optimization design of the groundwater quality monitoring network based on the adjustment of the monitoring point locations, monitoring point density, monitoring frequency and monitoring indicators.

[0088] In this embodiment, based on the adjustment of the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network, the pertinence and comprehensiveness of the groundwater quality monitoring network are improved, while ensuring the representativeness of the groundwater quality monitoring data and the accuracy and timeliness of the monitoring results, thereby completing the optimization design of the groundwater quality monitoring network.

[0089] S6. After the optimization design is completed, the optimized groundwater quality monitoring network is evaluated.

[0090] In this embodiment, the Kriging interpolation method is used to evaluate the optimized groundwater quality monitoring network.

[0091] Specifically, based on the groundwater quality monitoring data obtained by the groundwater quality monitoring network, the Kriging interpolation method is used to perform interpolation operations to generate a groundwater quality distribution map, and the accuracy and reliability of the groundwater quality monitoring network are evaluated according to the groundwater quality distribution map to obtain an evaluation result. If the evaluation result is negative, the groundwater quality monitoring network is iteratively optimized based on the method of the present invention.

[0092] See also Figure 2 In an optional embodiment, in order to be able to efficiently execute an improved regional groundwater quality monitoring network design method provided by the present invention, the present invention provides an improved regional groundwater quality monitoring network design system, the system includes an input device, an output device, a processor and a memory, the hardware facilities are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the specific steps of the relevant embodiments of the improved regional groundwater quality monitoring network design method provided by the present invention. The improved regional groundwater quality monitoring network design system provided by the present invention has a complete structure, objective and stable, and can efficiently execute the improved regional groundwater quality monitoring network design method of the present invention, thereby improving the overall applicability and practical application capabilities of the present invention.

[0093] In summary, the method of the present invention provides an improved regional groundwater quality monitoring network design method and system; by collecting regional groundwater samples and conducting experimental analysis, accurate groundwater quality information is obtained to construct a groundwater quality monitoring network evaluation model, and then the effectiveness and shortcomings of the groundwater quality monitoring network are comprehensively analyzed, so as to optimize the location, density, frequency and indicators of the monitoring points of the groundwater quality monitoring network, and realize the improvement of the groundwater quality monitoring network; significantly improve the monitoring efficiency and accuracy, ensure the accuracy and reliability of groundwater quality data, help to fully understand the groundwater quality status, and provide strong data support for water resources management and environmental protection; the method of the present invention is easy to understand, simple to calculate, small workload, and convenient for engineering application, and provides a theoretical basis and technical support for the further development of the field of groundwater quality monitoring technology.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An improved method for designing a regional groundwater quality monitoring network, characterized in that: The steps include: Obtaining a groundwater sample from the area as a test sample for the groundwater quality; Performing test analysis on the groundwater quality based on the test sample to obtain groundwater quality information of the area; Constructing a groundwater quality monitoring network assessment model for the region based on the groundwater quality information; Analyzing the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result; Utilizing the model evaluation results to optimize the design of the groundwater quality monitoring network in the area; The step of obtaining a groundwater sample from the area as a test sample for the groundwater quality comprises: Acquiring hydrogeological parameters and hydrogeological structures of the region as a hydrogeological information set of the region; Obtaining the sampling location, sampling depth and sampling time of the groundwater sample based on analyzing the hydrogeological information set; Sampling the groundwater in the area according to the sampling location, the sampling depth and the sampling time to obtain the groundwater sample; The step of constructing a groundwater quality monitoring network assessment model for the region based on the groundwater quality information includes: Preprocessing the groundwater quality information to obtain a standardized data set of groundwater quality in the area; Acquiring characteristic information of the groundwater quality information according to the groundwater quality standardized data set; Extracting features from the hydrogeological information set to obtain hydrogeological feature information of the region; Constructing a groundwater quality monitoring network assessment model for the region based on the characteristic information and the hydrogeological characteristic information; The step of analyzing the groundwater quality monitoring network according to the groundwater quality monitoring network evaluation model to obtain a model evaluation result includes: Evaluating the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model to obtain a model evaluation index; Analyzing the groundwater quality monitoring network according to the model evaluation index to obtain the model evaluation result; The method of evaluating the groundwater quality monitoring network based on the groundwater quality monitoring network evaluation model to obtain a model evaluation index includes: in, is the model evaluation indicator, is the total amount of physical characteristic information, is the traversal count of the physical feature information, is the weight coefficient of the physical feature information, is the physical characteristic information, is the total amount of chemical characteristic information, is the traversal count of chemical feature information, is the weight coefficient of chemical characteristic information, is the chemical characteristic information, is the total amount of biometric information, is the traversal count of biometric information, is the weight coefficient of biometric information, For biometric information, is the total amount of hydrogeological characteristic information, is the traversal count of hydrogeological characteristic information, is the weight coefficient of the hydrogeological characteristic information, For hydrogeological characteristics information, is the weight coefficient of the characteristic random error, is the characteristic random error.

2. The improved regional groundwater quality monitoring network design method according to claim 1 is characterized in that: The step of performing test analysis on the groundwater quality based on the test sample to obtain groundwater quality information of the area includes: Performing physical test analysis on the groundwater quality according to the test sample to obtain physical information of the groundwater quality in the area; Performing chemical test analysis on the groundwater quality based on the test sample to obtain chemical information of the groundwater quality in the area; The biological information of the groundwater quality in the area is obtained by performing biological test analysis on the groundwater quality according to the test samples.

3. The improved regional groundwater quality monitoring network design method according to claim 1 is characterized in that: The preprocessing of the groundwater quality information to obtain a standardized groundwater quality data set for the region includes: in, Standardizing data on groundwater quality, is the original data of groundwater quality information, is the mean of the original data, is the maximum value of the original data, is the minimum value of the original data.

4. The improved regional groundwater quality monitoring network design method according to claim 1 is characterized in that: The step of obtaining characteristic information of the groundwater quality information based on the groundwater quality standardized data set includes: in, is the characteristic information indicator, is the number of decision trees, is the traversal count of the decision tree, For the The out-of-bag error of the decision tree before adding random interference, For the Out-of-bag error of a decision tree after adding random interference.

5. The improved regional groundwater quality monitoring network design method according to claim 1 is characterized in that: The method of optimizing the groundwater quality monitoring network in the area by using the model evaluation results includes: Adjust the monitoring point locations, monitoring point density, monitoring frequency and monitoring indicators of the groundwater quality monitoring network according to the model evaluation results; The optimization design of the groundwater quality monitoring network is completed based on the adjustment of the monitoring point location, monitoring point density, monitoring frequency and monitoring indicators.

6. An improved regional groundwater quality monitoring network design system, characterized in that: The system includes an input device, an output device, a processor and a memory, wherein the input device, the output device, the processor and the memory are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the improved regional groundwater quality monitoring network design method as described in any one of claims 1-5.

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