Coastal wetland ecological vulnerability potential risk assessment method based on gray weighted correlation

A technology of weighted correlation and risk assessment, applied in complex mathematical operations, instruments, data processing applications, etc., can solve problems such as the overall evaluation system of coastal wetlands has not yet been established

Pending Publication Date: 2020-10-27
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

There are few studies on the overall evaluation of wetland ecosystems from multiple dimensions such as organisms, water quality, sediments, and pollutants, a...

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  • Coastal wetland ecological vulnerability potential risk assessment method based on gray weighted correlation
  • Coastal wetland ecological vulnerability potential risk assessment method based on gray weighted correlation
  • Coastal wetland ecological vulnerability potential risk assessment method based on gray weighted correlation

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Embodiment Construction

[0046] The technical solutions of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0047] This example shows a potential risk assessment method for coastal wetland ecological fragility based on the gray weighted correlation degree, which evaluates the potential risks of multiple coastal wetland ecological fragility, combined with figure 1 ,Specific steps are as follows:

[0048] Step 1: Construct a three-level evaluation index system for the potential risk of coastal wetland ecological vulnerability, and divide it into positive evaluation index and negative evaluation index according to the type of evaluation index;

[0049] Step 2: According to the evaluation index system and the sample data to be evaluated, an evaluation matrix is ​​established, and the objective weight of each index is calculated according to the entropy weight method;

[0050] Step 3: Calculate the correlation coefficient of the sample to be evalu...

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Abstract

The invention discloses a coastal wetland ecological vulnerability potential risk assessment method based on a gray weighted correlation degree, and the method comprises the following steps: (1) constructing a three-level evaluation index system, and dividing a forward evaluation index and a reverse evaluation index; (2) establishing an evaluation matrix, and calculating an objective weight by using an entropy weight method; (3) calculating a correlation coefficient through a grey correlation analysis method; and (4) calculating a gray weighted correlation degree in combination with the objective weight and the correlation coefficient, and performing sorting to obtain a sample with the highest ecological vulnerability. According to the method, the influence of natural and human activity factors on the coastal wetland ecological vulnerability potential risk is comprehensively considered; a set of systematic three-level evaluation index system is constructed, objective evaluation of coastal wetland ecological vulnerability potential risks can be achieved in combination with the grey weighted correlation degree, methods and reference are provided for coastal wetland protection, management and scientific research, and a scientific basis is provided for improving the coastal wetland ecological environment.

Description

technical field [0001] The invention relates to the technical field of potential risk assessment of coastal wetland ecological vulnerability, in particular to a method for assessing potential risk of coastal wetland ecological vulnerability based on a gray weighted correlation degree. Background technique [0002] Wetland ecosystems contain abundant natural resources and play an irreplaceable role in protecting the ecological environment, maintaining biodiversity, and developing social economy. With the acceleration of urbanization and industrialization in my country's coastal areas, human activities such as sea reclamation activities and land-based pollution input have increased, which have had an irreversible impact on the structure and ecological functions of coastal wetlands, posing potential threats to the ecological environment of coastal wetlands. Objectively evaluating the potential risk degree of coastal wetland ecological vulnerability can provide timely and accura...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06F17/18G06Q50/26
CPCG06Q10/06393G06Q10/0635G06F17/18G06Q50/26
Inventor 崔正国江涛胡清静白莹崔鸿武
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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