EUTROPHICATION EVALUATION OF YONGDING RIVER (BEIJING SECTION) BASED ON FUZZY MATHEMATICS

ZHANG Xiao-yue; LI Jie; SUN Yu-jiao; PAN Cheng-zhong; HUANG Yu-jia; YIN Meng

doi:10.13205/j.hjgc.202205017

Volume 40 Issue 5

Jul. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(5): 117-122

ZHANG Xiao-yue, LI Jie, SUN Yu-jiao, PAN Cheng-zhong, HUANG Yu-jia, YIN Meng. EUTROPHICATION EVALUATION OF YONGDING RIVER (BEIJING SECTION) BASED ON FUZZY MATHEMATICS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 117-122. doi: 10.13205/j.hjgc.202205017

Citation:

ZHANG Xiao-yue, LI Jie, SUN Yu-jiao, PAN Cheng-zhong, HUANG Yu-jia, YIN Meng. EUTROPHICATION EVALUATION OF YONGDING RIVER (BEIJING SECTION) BASED ON FUZZY MATHEMATICS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 117-122. doi: 10.13205/j.hjgc.202205017

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EUTROPHICATION EVALUATION OF YONGDING RIVER (BEIJING SECTION) BASED ON FUZZY MATHEMATICS

doi: 10.13205/j.hjgc.202205017

College of Water Sciences, Beijing Normal University, Beijing 100875, China

Received Date: 2021-03-23
Available Online: 2022-07-02

Abstract

Abstract

Taking the Beijing section of Yongding River as the research object, water quality and water eco-environment status were investigated and the dynamic indexes were monitored to select the candidate indicators. The evaluation indexes were screened by principal component analysis method, and the weight of each index was estimated by the entropy method so as to construct the river eutrophication evaluation index system. And fuzzy mathematics was used to calculate and determine the nutrient level in the Beijing section of Yongding River. The results showed that eutrophication was common in Beijing Section, but the problem was not serious. Two assessment methods, namely, comprehensive trophic level index(TLI) and eutrophication index(EI) were adopted to carry out the comparison, which verified the reliability of the proposed method. This method had the advantages of more flexible index selection and more objective evaluation results, and could be used as an important method and means for water eutrophication evaluation in Beijing section of Yongding River.
- Yongding River,
- eutrophication evaluation,
- evaluation index system,
- fuzzy mathematics method

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References(29)

References

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