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

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...

AI Technical Summary

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, and a set of overall evaluation systems suitable for the potential risks of ecological vulnerability of coastal wetlands in my country have not yet been established.

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