生态与农村环境学报2024，Vol.40Issue(4)：469-477,9.DOI:10.19741/j.issn.1673-4831.2023.0751
2016-2022年太湖胥口湾水质变化及对水温、水位的响应
Changes in the Water Quality and Its Responses to Temperature and Water Level in Xukou Bay of Lake Taihu during 2016-2022
摘要
Abstract
Clarifying water quality tendency and its responses to extreme weather in Xukou Bay of Lake Taihu is critical to water management.Here,the water quality tendency of Xukou Bay from 2016 to 2022 was reported,and its responses to water temperature(WT)and water level(WL)were tested as well.The results show that the water quality of Xukou Bay was relatively stable.Moreover,the total nitrogen(TN),ammonia nitrogen(NH3-N),total phosphorus(TP),and CODMn concentrations decreased gradually.However,the annual average WT increased rapidly,with an average rate of 0.086℃·a-1,presumably threatening the ecological stability in this basin.Redundancy analysis(RDA)confirmed that although WT and WL contributed to less than 5%of total variation of the water quality,the effects caused by WT were sig-nificant(P<0.01).In contrast,WL was failed to explain the changes of water quality.Nevertheless,TN,NH3-N,CODMn,and pH were sensitive to high WT(>30℃),and high WL(>3.8 m)significantly and affected the concentra-tions of NH3-N,TN,TP,and chlorophyll-a.In summary,the ecological environment of Xukou Bay was stable,but high WT and high WL are the main factors interfered the stability.This study provides significant references for water quality management under extreme weather conditions.关键词
太湖/胥口湾/极端天气/高水温/高水位Key words
Lake Taihu/Xukou Bay/extreme weather/high water temperature/high water level分类
资源环境引用本文复制引用
朱伟,尤星宇,段志鹏,吕艺,侯豪..2016-2022年太湖胥口湾水质变化及对水温、水位的响应[J].生态与农村环境学报,2024,40(4):469-477,9.基金项目
国家重点研发计划(2022YFC3202700) （2022YFC3202700）
中国博士后科学基金(2023M730927) （2023M730927）
