Monitoring and Evaluation on Water Quality of Xiaolangdi Reservoir in Yellow River Based on Principal Component Analysis and Fuzzy Mathematics

Wu Li; Wang Zuheng; Wang Liang; Zhao Tongqian; Jin Xinmiao

doi:10.13961/j.cnki.stbctb.2020.05.018

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Monitoring and Evaluation on Water Quality of Xiaolangdi Reservoir in Yellow River Based on Principal Component Analysis and Fuzzy Mathematics

- Monitoring and Evaluation on Water Quality of Xiaolangdi Reservoir in Yellow River Based on Principal Component Analysis and Fuzzy Mathematics
- Bulletin of Soiland Water Conservation Vol. 40, Issue 5, Pages: 118-124(2020)
- 作者机构：
  
  1. 河南理工大学资源环境学院,河南,焦作,454150
  2. 河南省济源生态环境监测中心,河南,济源,459000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.05.018
  CLC： X524;X824
- Published：2020
- 稿件说明：
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Wu Li, Wang Zuheng, Wang Liang, et al. Monitoring and Evaluation on Water Quality of Xiaolangdi Reservoir in Yellow River Based on Principal Component Analysis and Fuzzy Mathematics[J]. Bulletin of Soiland Water Conservation, 2020, 40(5): 118-124.
DOI：

Wu Li, Wang Zuheng, Wang Liang, et al. Monitoring and Evaluation on Water Quality of Xiaolangdi Reservoir in Yellow River Based on Principal Component Analysis and Fuzzy Mathematics[J]. Bulletin of Soiland Water Conservation, 2020, 40(5): 118-124. DOI： 10.13961/j.cnki.stbctb.2020.05.018.

摘要

[目的

]

监测了黄河小浪底水库南山、大横岭、桐树岭3个断面，分析了黄河小浪底水库水质现状及潜在污染来源，以期为其环境改善提供帮助。[方法

]

根据3个断面的水质实测数据，采用主成分分析选择主要评价因子，运用模糊评价法对水库水质进行评价。[结果

]

通过主成分分析得到6个主要水质因子，分别是溶解氧（DO）、五日生化需氧量（BOD

）、氨氮（NH

-N）、总氮（TN）、总磷（TP）、高锰酸盐指数（COD

）。其中DO和BOD

属于Ⅰ类水，其值分别在3.8~12.8 mg/L和0.9~1.7 mg/L之间；NH

-N介于Ⅰ类水与Ⅱ类水之间，其值为0.03~0.72 mg/L；TN超过Ⅴ类水，其值在2~4.88 mg/L之间；TP和COD

属于Ⅱ类水，其值分别在0.02~0.05 mg/L和1.8~2.7 mg/L之间。通过模糊综合评判法得到水库主要污染物为TN和TP，水质整体属于Ⅲ类水，达到了水质要求。[结论

]

通过主成分分析与模糊综合评价法发现，小浪底水库水质基本满足要求，但存在TN和TP污染风险。

Abstract

[Objective] Three sections of Xiaolangdi Reservoir (Nanshan

Dahengling

and Tongshuling) in the Yellow River were monitored. The present situanion of water quality and potential pollution sources of the reservoir were analyzed in order to provide help for its environmental improvement.[Methods] According to the measured water quality data of the three sections

a principal component analysis was performed to select the main evaluation factors

and the fuzzy evaluation method was used to evaluate the water quality of the reservoir.[Results] Six primary water quality factors were obtained from the principal component analysis: dissolved oxygen (DO)

the 5-day biochemical oxygen demand (BOD5)

ammonia nitrogen (NH3-N)

total nitrogen (TN)

total phosphorus (TP)

and the potassium permanganate index (CODMn). The DO concentration and BOD5 belonged to class I

with values of 3.8—12.8 and 0.9—1.7 mg/L

respectively. The NH3-N concentration ranged from 0.03 to 0.72 mg/L

which was between classes Ⅰ and Ⅱ. The TN concentration ranged from 2 to 4.88 mg/L

which was worse than the standard of class Ⅴ. The TP concentration and CODMn belonged to class Ⅱ

and their values were 0.02—0.05 and 1.8—2.7 mg/L

respectively.[Conclusion] Through a principal component analysis and fuzzy comprehensive evaluation

it was found that the water quality of Xiaolangdi Reservoir basically met the legislative requirements; however

there was a risk of TN and TP pollution.

关键词

Keywords

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