Evaluation of ecological environment carrying capacity in coastal waters of Liaoning based on Grey relation

SHEN Si-yi; NIU Er-xuan; MENG Bin

doi:10.16411/j.cnki.issn1006-7736.2017.03.019

Journal of Dalian Maritime University >

2017 , Vol. 43 >Issue 3: 112 - 118

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2017.03.019

Evaluation of ecological environment carrying capacity in coastal waters of Liaoning based on Grey relation

SHEN Si-yi ,
NIU Er-xuan ,
MENG Bin

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（Collaborative Innovation Center For Transport Studies, Dalian Maritime University, Dalian 116026，China）

Received date: 2017-03-22

Revised date: 2017-04-30

Online published: 2017-05-02

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Abstract

The support and restriction factors of ecological environment in coastal waters were analyzed. Combined with the present situation of ecological environment in coastal waters, the index was screened and weighted by grey relational degree and correlation from the three aspects of environmental quality, ecological structure and human activities considering the characteristics of marine. The evaluation model of ecological environment carrying capacity of offshore area including 18 indexes was constructed, which solved the problems of index selection and weighting in existing literature, and ensured the “quality” and “integrity” of the evaluation results. The empirical results show that the carrying capacity of ecosystem in the coastal waters of Dalian was in the first place in 2008—2014, and Anshan ranked second in 2012—2014, and Yingkou ranked last. The sum of weights of human activities is 0.414, which is the most important factor affecting the ecological environment carrying capacity of coastal waters.

Key words： Liaoning province; coastal waters; ecological environment; carrying capacity; Grey relational degree; correlation weighting

Cite this article

SHEN Si-yi , NIU Er-xuan , MENG Bin . Evaluation of ecological environment carrying capacity in coastal waters of Liaoning based on Grey relation[J]. Journal of Dalian Maritime University, 2017 , 43(3) : 112 -118 . DOI: 10.16411/j.cnki.issn1006-7736.2017.03.019

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