Method for optimizing groundwater special vulnerability evaluation model

A technology for evaluating models and groundwater, applied in instruments, data processing applications, forecasting, etc., can solve problems such as strong subjectivity, and achieve the effect of reducing subjectivity

Active Publication Date: 2017-08-08
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for optimizing the special vulnerability evaluation model of groundwater, so as to solve the problem of excessive subjectivity existing in the existing stacking index method

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  • Method for optimizing groundwater special vulnerability evaluation model
  • Method for optimizing groundwater special vulnerability evaluation model
  • Method for optimizing groundwater special vulnerability evaluation model

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Embodiment Construction

[0052] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0053] Aiming at the problem that the existing groundwater vulnerability assessment model based on the overlapping index method is too subjective, the invention provides a method for optimizing the groundwater special vulnerability assessment model.

[0054] see figure 1 As shown, the method for optimizing the groundwater special vulnerability assessment model provided by the embodiments of the present invention includes:

[0055] Step 101: Combining the geology, topography, landform, hydrometeorology, hydrogeological conditions, groundwater quality and pollution, the nature of characteristic pollutants and the degree of influence of human activities in the study area, after clarifying the research object, evaluation scale and evaluation purpose, determi...

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Abstract

The present invention provides a method for optimizing a groundwater special vulnerability evaluation model. According to the technical scheme of the invention, the evaluation model is optimized respectively in four aspects, namely the establishment of an index system, the assignment of index grades, the determination of weights, and the grading method selection of vulnerability indexes. Therefore, the subjectivity of the evaluation model based on the overlay and index method is effectively reduced. The method comprises the steps of determining groundwater special vulnerability influence factors; selecting typical indexes out of the influence factors to establish an index system; according to the characteristic value of each index in a research area, dividing the grade of each index and assigning a value to each grade; determining the weight of each index through studying the specific pollutant concentration at a sampling point in the research area and the correlation degree among the values of all indexes; constructing a groundwater special vulnerability evaluation model, and forming groundwater special vulnerability sub-areas through different grading methods respectively; and determining an optimal groundwater special vulnerability map through the contrastive analysis of the grade difference method. The method is applicable to the field of groundwater pollution prevention and control management.

Description

technical field [0001] The invention relates to the field of groundwater pollution prevention and control management, in particular to a method for optimizing a groundwater special vulnerability evaluation model. Background technique [0002] In recent years, groundwater special vulnerability assessment is the main measure to prevent groundwater pollution. Groundwater areas with different vulnerability levels are delineated by distinguishing the sensitivity of groundwater to pollution in different areas. The assessment results are very important for the selection of groundwater sources and the division of protected areas. , Groundwater pollution prevention and control plan, regional land use and development policy formulation, urban waste dump site selection and groundwater quality monitoring network layout all have certain theoretical guiding significance. [0003] Groundwater vulnerability is divided into essential vulnerability and special vulnerability. The essential vu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 郇环席北斗王金生张军军李鸣晓
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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