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Immediate offshore area ecological environment comprehensive evaluation method based on analytic hierarchy process and comprehensive evaluation method

An analytic hierarchy process and comprehensive evaluation technology, applied in the field of comprehensive evaluation of the ecological environment of coastal waters, which can solve the problems of cumbersome evaluation methods and so on.

Inactive Publication Date: 2011-01-12
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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Problems solved by technology

Wu Xuefeng et al. reported in their patent (CN101309009 A) a comprehensive evaluation system for urban power grids based on AHP and Delphi, and Yu Junqi et al. reported in their patent (CN101430309 A) a rough set-RBF neural network environment Quality evaluation methods, but the evaluation methods described in the above two patents are cumbersome

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  • Immediate offshore area ecological environment comprehensive evaluation method based on analytic hierarchy process and comprehensive evaluation method
  • Immediate offshore area ecological environment comprehensive evaluation method based on analytic hierarchy process and comprehensive evaluation method
  • Immediate offshore area ecological environment comprehensive evaluation method based on analytic hierarchy process and comprehensive evaluation method

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[0181] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0182] Taking the project monitoring data from 2006 to 2007 as an example to evaluate the ecological environment quality of a coastal sea area in Guangdong Province, the measured values ​​of the indicators at each monitoring point are the average value.

[0183] (1) Obtain basic data on seawater quality, bottom heavy metal sediments, marine organisms, and seawater eutrophication in a coastal area of ​​Guangdong Province from 2006 to 2007;

[0184] ① Inorganic nitrogen (DIN) was selected as the indicator of seawater quality in a coastal area of ​​Guangdong Province from 2006 to 2007, see Table 16 for details.

[0185] Table 16 Inorganic nitrogen status in surveyed sea areas

[0186]

[0187] ② See Table 17 for the status of heavy metal sediments in a coastal area of ​...

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Abstract

The invention discloses an offshore area ecological environment comprehensive evaluation method based on the analytic hierarchy process and the comprehensive evaluation method. The method comprises the following steps: (1) obtaining the essential data of each index of the offshore area ecological environment quality; (2) selecting appropriate evaluation indexes to establish a comprehensive evaluation index system; (3) scoring each index; (4) utilizing the analytic hierarchy process to establish the hierarchical relationship of the indexes and determine the weighting of each index; (5) calculating the comprehensive score A of the offshore area ecological environment quality according to the formulas (1-8); and obtaining the quality classification of the offshore area ecological environment according to the comprehensive score of the offshore area ecological environment quality. The method of the invention overcomes the problem that the evaluation result of the single factor evaluation method is single and is difficult to completely reflect the offshore area ecological environment quality.

Description

technical field [0001] The invention belongs to the field of marine ecological environment monitoring, and in particular relates to a method for comprehensive evaluation of the ecological environment in coastal sea areas based on the analytic hierarchy process and the comprehensive evaluation method. Background technique [0002] The evaluation of the ecological environment quality in coastal waters is an important task in marine environmental protection. At present, most of the evaluation methods for ecological environment quality in coastal waters are single-factor evaluation methods. Since there are many factors affecting the ecological environment quality of coastal waters, the single-factor evaluation method can only reflect the environmental quality of the sea area partially, but cannot fully reflect the ecological environment quality of the coastal waters. Therefore, it is a meaningful work to develop a comprehensive evaluation method for the ecological environment q...

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Application Information

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IPC IPC(8): G06F19/00G01N33/18
Inventor 张英民李开明陈中颖姜国强薛媛
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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