Dissolved oxygen stratification and response to thermal structure and long-term climate change in a large and deep subtropical reservoir (Lake Qiandaohu, China)

Water Research
Yunlin ZhangXiaohan Liu

Abstract

From January 2010 to March 2014, detailed depth profiles of water temperature, dissolved oxygen (DO), and chromophoric dissolved organic matter (CDOM) were collected at three sites in Lake Qiandaohu, a large, deep subtropical reservoir in China. Additionally, we assessed the changes in DO stratification over the past 61 years (1953-2013) based on our empirical models and long-term air temperature and transparency data. The DO concentration never fell below 2 mg/L, the critical value for anoxia, and the DO depth profiles were closely linked to the water temperature depth profiles. In the stable stratification period in summer and autumn, the significant increase in CDOM in the metalimnion explained the decrease in DO due to the oxygen consumed by CDOM. Well-developed oxygen stratification was detected at the three sites in spring, summer and autumn and was associated with thermal stratification. Oxycline depth was significantly negatively correlated with daily air temperature and thermocline thickness but significantly positively correlated with thermocline depth during the stratification weakness period (July-February). However, there were no significant correlations among these parameters during the stratification formation pe...Continue Reading

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Citations

Nov 26, 2015·The Science of the Total Environment·Yongqiang ZhouXiaoxia Han
Apr 20, 2016·International Journal of Environmental Research and Public Health·Jian-Chao ShiBao-Shan Wang
Jul 9, 2016·The Science of the Total Environment·Chao HanXianchuan Xie
Mar 31, 2016·PloS One·R Iestyn WoolwayGesa A Weyhenmeyer
Jul 18, 2015·International Journal of Environmental Research and Public Health·Weixing MaKang Zeng
Aug 15, 2015·International Journal of Environmental Research and Public Health·Zhixu WuZuoming Yu
Dec 21, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Tiantian ShaoZhang Bai
Sep 19, 2019·Environmental Monitoring and Assessment·Zhenglun YangYangyang Cai
Apr 5, 2020·International Journal of Environmental Research and Public Health·Zixiong WangXinguo Sun
Jun 25, 2020·Environmental Science and Pollution Research International·Fan LuoLinda Sarpong
Dec 7, 2018·Environmental Science and Pollution Research International·Yibo ZhangXiaolong Yao
Aug 9, 2019·Environmental Science and Pollution Research International·Biao LiQinglong L Wu
Mar 22, 2019·International Journal of Environmental Research and Public Health·Yuwei HuangGang Wen
Dec 1, 2018·Environmental Science and Pollution Research International·Xiaoxuan SuZhi Hu
Jan 5, 2021·Environmental Science and Pollution Research International·Kun YangChunxue Shang
Jan 27, 2019·The Science of the Total Environment·Wei HeSheng Chen
Dec 29, 2020·The Science of the Total Environment·Maria Conceição LopesTeresa Cristina Tarlé Pissarra
Mar 9, 2021·The Science of the Total Environment·Roohollah NooriBjørn Kløve
Mar 25, 2021·Environmental Science and Pollution Research International·Damodar M ShenoySyed Wajih Ahmed Naqvi
Jun 4, 2021·Nature·Stephen F JaneKevin C Rose
Jul 18, 2021·Environmental Science and Pollution Research International·Qunfang HuangYuan Li
Sep 19, 2019·Environmental Science & Technology·Xia LiangSiliang Li

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