长江科学院院报 ›› 2020, Vol. 37 ›› Issue (8): 49-53.DOI: 10.11988/ckyyb.20190419

• 水资源与环境 • 上一篇    下一篇

华阳河湖群水位变化对水质的影响

曾凯, 王家生, 章运超, 张琳, 杨启红   

  1. 长江科学院 河流研究所,武汉 430010
  • 收稿日期:2019-04-15 出版日期:2020-08-01 发布日期:2020-09-01
  • 作者简介:曾 凯(1992-),男,湖北监利人,硕士研究生,主要从事河流生态方面的研究。E-mail:461278712@qq.com
  • 基金资助:
    国家自然科学基金项目(51679009)

Influence of Water Level Fluctuation on Water Quality ofHuayang River and Lake Group

ZENG Kai, WANG Jia-sheng, ZHANG Yun-chao, ZHANG Lin, YANG Qi-hong   

  1. River Department, Yangtze River Scientific Research Institute, Wuhan 430010, China
  • Received:2019-04-15 Online:2020-08-01 Published:2020-09-01

摘要: 针对华阳河湖群水质变化的问题,基于典型站点水位和水质实测资料,同时运用Spearman法分析华阳河湖群水位在空间、时间变化上对水质指标的影响趋势以及水位、水质的相关性。结果表明:空间变化上,受长江来水水质影响,华阳河湖群总体呈现西部水质较差、东部水质较好的分布特征;年际变化上,在2015—2018年间,龙感湖、黄湖、泊湖、大官湖水质存在一定程度的波动,且2018年龙感湖、黄湖、泊湖水质较差;年内变化上,各湖泊污染物浓度指标总体表现出枯水期大于丰水期的特征;相关性上,华阳河湖群水位变化与TN、TP、COD浓度均呈负相关,其平均相关系数分别约为-0.43,-0.41,-0.09,但绝对值均<0.5。研究结果可为今后华阳河流域的水环境综合治理提供参考。

关键词: 水质, 水位变化, 相关性分析, 影响趋势, 湖泊污染物浓度, 华阳河湖群

Abstract: According to measured data of water level and water quality at typical sites of Huayang River and Lake Group, we analyzed the influences of spatial and temporal changes of water level on water quality indicators and the correlation between water level and water quality using the Spearman method. Results demonstrated that affected by the incoming water quality of the Yangtze River, the water quality of Huyang River and Lake Group was inferior in the west while superior in the east. In interannual scale, the water quality of Longgan Lake, Huanghu Lake, Bohu Lake and Daguan Lake fluctuated from 2015 to 2018, and particularly in 2018, the water quality of Longgan Lake, Huanghu Lake and Bohu Lake were inferior; in annual scale, the pollutant concentration index of each lake was larger in dry season than that in wet season. In addition, water level fluctuation is negatively correlated with the concentration of TN, TP and COD. The average correlation coefficient is about -0.43, -0.41, -0.09, respectively, and the absolute values are all smaller than 0.5.

Key words: water quality, water level fluctuation, correlation analysis, impact trend, pollutant concentration, Huayang River and Lake Group

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