Evaluation on Water Quality and Eutrophication of Taiyangshan Wetland in Ningxia Hui Autonomous Region

Sun Xuyang; Zhao Zengfeng; Yin Juan; Qiu Xiaocong; Wang Shiqiang; Ouyang Hong; Guo Qi

doi:10.13961/j.cnki.stbctb.2021.02.039

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Evaluation on Water Quality and Eutrophication of Taiyangshan Wetland in Ningxia Hui Autonomous Region

- Evaluation on Water Quality and Eutrophication of Taiyangshan Wetland in Ningxia Hui Autonomous Region
- Bulletin of Soiland Water Conservation Vol. 41, Issue 2, Pages: 298-305(2021)
- 作者机构：
  
  1. 宁夏大学土木与水利工程学院,宁夏,银川,750021
  2. 宁夏大学生命科学学院,宁夏,银川,750021
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.02.039
  CLC： X524
- Published：2021
- 稿件说明：
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Sun Xuyang, Zhao Zengfeng, Yin Juan, et al. Evaluation on Water Quality and Eutrophication of Taiyangshan Wetland in Ningxia Hui Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 298-305.
DOI：

Sun Xuyang, Zhao Zengfeng, Yin Juan, et al. Evaluation on Water Quality and Eutrophication of Taiyangshan Wetland in Ningxia Hui Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 298-305. DOI： 10.13961/j.cnki.stbctb.2021.02.039.

摘要

[目的] 探明宁夏太阳山湿地湖泊水质与富营养化现状，为其生态修复与合理开发利用提供依据。[方法] 于2019年4，7，10月和2020年1月对水样进行采集，检测水环境因子理化指标，分析浮游植物密度、生物量、优势种以及Shannon-Wiener多样性指数（H'）和Pielou均匀度指数（J）。[结果] 西湖夏、秋季为Ⅲ类水，春季和冬季分别为Ⅴ类和Ⅳ类，南湖夏、秋季为Ⅱ类水，春、冬季分别为Ⅳ类和Ⅴ类，小南湖和东湖最差，全年均为Ⅴ类水。西湖和南湖浮游植物H'较高，均匀度J变化幅度小，水体污染较轻。而小南湖和东湖浮游植物H'变化较为明显，水质状况较差。西湖夏季水体呈现轻度富营养，其他季节为中营养状态。南湖情况较好，全年水体均呈现中营养状态。小南湖在夏、秋季为中度富营养，春、冬季为轻度富营养。东湖除夏季水体呈现中度富营养外，其余季节均为轻度富营养状态。[结论] 太阳山湿地湖泊水质已受到污染，富营养化程度随季节变化较为明显，应密切监测其水质和富营养化趋势，并及时采取相应治理措施。

Abstract

[Objective] The water quality and eutrophication status were studied in order to provide a basis for its ecological restoration and rational development and utilization in Taiyangshan Wetland of Ningxia area.[Methods] The water samples were collected in April

July

October

2019

and January 2020

the physical and chemical indicators of water environment factors were tested

and the phytoplankton density

biomass

the dominant species

Shannon-Wiener diversity index (H') and Pielou uniformity index (J) of phytoplankton were analyzed in Taiyangshan Wetland.[Results] The water quality in summer and autumn of West Lake was class Ⅲ

and that in spring and winter was class Ⅴ and class Ⅳ respectively. The water quality in summer and autumn of Nanhu Lake was class Ⅱ

and that in spring and winter was class Ⅳand class Ⅴ respectively. The water quality in Xiaonan Lake and East Lake was the worst and that was class Ⅴ in the whole year. The phytoplankton diversity index (H') was high

the variation of evenness (J) was small

and the water pollution was light in West Lake and Nanhu Lake. The change of phytoplankton diversity index (H') was obvious

and the water quality was poor in Xiaonan Lake and East Lake. The water body of West Lake presented slight eutrophication in summer and moderate nutrition in other seasons. The water body was moderately nutritious in the whole year in Nanhu Lake. The water body of Xiaonan Lake was moderately eutrophication in summer and autumn

and slightly eutrophication in spring and winter. The water body of East Lake presented a moderate eutrophication in summer and a slight eutrophication in other seasons.[Conclusion] The water quality of the Taiyangshan Wetland lakes has been polluted

and the degree of eutrophication changes significantly with the seasons. The water quality and eutrophication status of the lake should be closely monitored

and corresponding treatment measures should be taken in time.

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