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Ecological environment quality assessment method based on norm grey correlation model

A technology of gray correlation and environmental quality, applied in data processing applications, instruments, calculations, etc., can solve the problems of weight assignment relying on expert empowerment, lack of quantitative analysis, etc.

Pending Publication Date: 2021-09-28
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0004] Purpose of the invention: the technical problem to be solved by this invention is to provide a kind of ecological environment quality evaluation method based on the norm gray relational degree model for the deficiencies in the prior art, to solve the lack of quantitative analysis when studying the ecological environment quality of our country, and to construct The weight assignment of the index system relies on expert empowerment and lacks objective basis

Method used

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  • Ecological environment quality assessment method based on norm grey correlation model
  • Ecological environment quality assessment method based on norm grey correlation model
  • Ecological environment quality assessment method based on norm grey correlation model

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Embodiment Construction

[0046] figure 1 Be the flow chart of the inventive method, the content in the concrete module comprises:

[0047] Step 1. Construct an ecological environment quality evaluation index system composed of three levels: ecological elements, ecological content and ecological indicators. as table 1, figure 2 shown.

[0048] Table 1

[0049]

[0050]

[0051] Step 2. Based on the ecological index data and the norm gray relational degree model, calculate the weight vector of the ecological index, and use the weighted sum method to further obtain the ecological content evaluation data, specifically including the following steps:

[0052] Step 2-1, according to chromaticity, smell and taste, turbidity, total hardness (with CaCO 3 total), total dissolved solids, sulfate, and heavy metals to obtain the original data matrix A (1) and reference vector A 0 (1) =(a 01 (1) ,a 02 (1) ,...,a 0m (1) )(m is the number of indicators), where a 0j (1) is the optimal value of the...

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Abstract

The invention provides an ecological environment quality evaluation method based on a norm grey correlation degree model, and the method comprises the steps: step 1, constructing an ecological environment quality evaluation index system which is divided into three levels: ecological elements, ecological contents and ecological indexes; step 2, based on the ecological index data and a norm grey correlation model, calculating to obtain a weight vector of an ecological index, and further obtaining ecological content evaluation data by using a weighted sum method; step 3, based on the ecological content evaluation data and the norm grey correlation model, calculating to obtain a weight vector of an ecological content index, and further obtaining ecological element evaluation data by using a weighted sum method; and step 4, displaying an ecological environment quality evaluation result in a map form. According to the method, the ecological environment quality is evaluated by using the norm grey correlation degree model, and the evaluation result is quantitatively displayed, so that the method has very important significance for comprehensively evaluating the ecological environment quality problem in China.

Description

technical field [0001] The invention relates to an ecological environment quality assessment method based on a norm gray relational degree model. Background technique [0002] For the research on ecological environment quality assessment, at present, it mainly relies on the knowledge and experience of experts to conduct a qualitative analysis of the ecological environment quality in various regions in general. However, since the assessment results cannot be quantified, and the size of the assessment results cannot be displayed intuitively and visually, it is of limited help to the subsequent improvement of the quality of the ecological environment. In addition, there are also some methods to evaluate the quality of the ecological environment by constructing an index system. However, in the process of constructing the index system, the weight of each index mainly depends on the weight of experts, which is highly subjective and lacks a certain basis. The results are scientifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/06395G06Q10/06393
Inventor 陈文颖王妍妍王玉坤高菁张春晖
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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