NDLI: Application of fuzzy mathematics in health assessment of estuarine ecosystem

Content Provider	IEEE Xplore Digital Library
Author	Chao Wang Jun Hou Aiyu Qu Yanhui Ao Peifang Wang
Copyright Year	2011
Description	Author affiliation: College of Environment, Hohai University, Nanjing, China (Jun Hou) \|\| Key laboratory of Integrated Regulation and Resource, Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, China (Chao Wang; Aiyu Qu; Yanhui Ao; Peifang Wang)
Abstract	To protect and restore the estuarine ecosystem, it is very important to evaluate estuarine ecosystem health. A comprehensive multi-index evaluation model of estuarine ecosystem health was investigated in this paper by using the relevant theories of comprehensive evaluation and fuzzy mathematics. Considering synthetically the dependencies and constrains among the influencing factors, a new evaluation index system for estuarine ecosystem health was developed with twelve indices of physical chemistry, ecology and economy. Then, the membership degree of every index was analyzed to obtain a fuzzy matrix. Weight of every index was determined by the analytic hierarchy process (AHP). Finally, a composite index of estuarine ecosystem health could be obtained based on fuzzy transformation. The Yangtze River estuary was chosen as an example to apply the proposed evaluation model. The evaluation result showed that the healthy conditions of the Yangtze River estuary were becoming worse from 2001 to 2005. With further analysis, main factors affecting the ecosystem health of the Yangtze River estuary were increase of pollutant discharge, decrease of suspended solid and decrease in biodiversity. This model is reliable and it can be applied for dynamic evaluation of estuarine ecosystem health.
Starting Page	3920
Ending Page	3924
File Size	308039
Page Count	5
File Format	PDF
ISBN	9781457702891
e-ISBN	9781457702907
DOI	10.1109/ICETCE.2011.5775937
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	The Yangtze River estuary Economic indicators Biological system modeling Ecosystem health Ecosystems Fuzzy mathematics Evaluation model Lakes Educational institutions AHP Rivers Indexes
Content Type	Text
Resource Type	Article

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