Nutrient status of overlying water and sediment of West Lake, Hangzhou, China

Qingjun Fang; Yadong Tang; Jiying Zhu; Huan Liao; Xiaopei Du; Guoliang Bai; Hang Yang; Zhenbin Wu; Yi Zhang

HydroResearch (Jan 2024)

Nutrient status of overlying water and sediment of West Lake, Hangzhou, China

Qingjun Fang,
Yadong Tang,
Jiying Zhu,
Huan Liao,
Xiaopei Du,
Guoliang Bai,
Hang Yang,
Zhenbin Wu,
Yi Zhang

Affiliations

Qingjun Fang: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Yadong Tang: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
Jiying Zhu: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
Huan Liao: School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
Xiaopei Du: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
Guoliang Bai: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
Hang Yang: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China; Corresponding authors at: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
Zhenbin Wu: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
Yi Zhang: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authors at: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.

Journal volume & issue: Vol. 7
pp. 55 – 70

Abstract

Read online

A comprehensive investigation of the physicochemical properties of overlying water and sediments in Hangzhou West Lake, China was conducted. A wide range of crucial physical parameters were analyzed, revealing significant spatial and seasonal differences. Total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD) concentrations in overlying water met the Class III limits (TN ≤2 mg/L, TP ≤0.2 mg/L, COD ≤20 mg/L) of the Environmental Quality Standard for Surface Waters (GB3838–2002), indicating relatively good overall water quality. However, concerns were raised regarding potential eutrophication, particularly evident during summer with explosive chlorophyll-a growth in certain lake areas like WH (266 mg/L) and XLH (239 mg/L). Lakes receiving direct diversion showed lower TN and TP versus non-diverted lakes. This research provides valuable insight into the complex nutrient dynamics and conditions of West Lake, improving understanding of lake ecosystem management and sustainable conservation strategies.

Published in HydroResearch

ISSN: 2589-7578 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Environmental technology. Sanitary engineering: Water supply for domestic and industrial purposes
Website: https://www.keaipublishing.com/en/journals/hydroresearch/

About the journal

Abstract

Keywords