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     International Journal of Fisheries and Aquatic Sciences


Application of Fuzzy Comprehensive Method in Water Quality Assessment of the Yongjiang River, China

Xiaoxi Fu, LihuaTeng, Xihan Wang, Jiang Lv, Yuting Zhou, Xiaodan Tang, JiaminQian andPingsha Huang
College of Biology and Environment, Zhejiang Wanli University, Ningbo 315100, Zhejiang, China
International Journal of Fisheries and Aquatic Sciences  2015  1:1-6
http://dx.doi.org/10.19026/ijfas.4.2984  |  © The Author(s) 2015
Received: April ‎17, ‎2016  |  Accepted: May ‎10, ‎2016  |  Published: May 20, 2015

Abstract

In order to assess the water quality of the Yongjiang River, the annual samplings were taken in 13 sampling sites and physic-chemical environmental factors were analyzed. The assessment conclusion of fuzzy comprehensive method shows that water quality from all sampling sites in the Yongjiang River are as follows: Sites 1, 2, 13, 9, 11, 12, 5, 10, 8, 4, 7, 6 and 3 from excellent to inferior. The water quality reached Grade II and III at Site 1 and Site 2, respectively. Other sites were all in Grade V. If take seasonal change into consideration the assessment results were as follows: winter, spring, autumn and summer from excellent to inferior. It was Grade IV in winter and Grade V in other seasons. The results were basically consistent with the reports from different assessment methods in literature.

Keywords:

Fuzzy comprehensive assessment, membership degree, matrix, water quality, Yongjiang River,


References


Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2049-842X
ISSN (Print):   2049-8411
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