江苏水利Issue(5)：1-5,5.
江淮流域典型湖泊水环境关键参数时空演变规律
The spatiotemporal evolution law of key parameters of water environment in typical lakes in the Jianghuai Basin
摘要
Abstract
Taking the Taihu Lake and Hongze Lake as research objects,based on Landsat and GOCI satellite observations,the continuous data series of aquatic vegetation and transparency in the Taihu Lake and Hongze Lake from 2005 to 2023,and the chlorophyll-a concentration data from 2013 to 2023 were extracted.The results show that:(1)The area of floating leaf vegetation in the Taihu Lake and Hongze Lake is higher than that of emergent vegetation,and the area of submerged vegetation is the least;(2)The annual average transparency of the two lakes has a trend of increasing year by year,but the transparency of Hongze Lake has decreased slightly from 2021 to 2023;(3)The highest value of chlorophyll-a concentration in the Taihu Lake appeared in 2017,and then gradually fluctuated and decreased.The annual average chlorophyll-a concentration in Hongze Lake continued to fluctuate and decrease.Taking wind speed,rainfall and the population of the watershed as characteristics,fitting the changes of water quality parameters using the Generalized Additive Model shows good accuracy performance,which can provide a scientific basis for the optimization of the structure and the restoration of the function of the lake ecosystem.关键词
水质反演/时空分布/广义加性模型/太湖/洪泽湖Key words
water quality inversion/spatiotemporal distribution/GAM/Taihu Lake/Hongze lake分类
水利科学引用本文复制引用
黄泽晖,刘昊泽,吴弈秋,马荣华,陆小明..江淮流域典型湖泊水环境关键参数时空演变规律[J].江苏水利,2025,(5):1-5,5.基金项目
江苏省水利科技项目(2021003) （2021003）
湖泊与流域水安全重点实验室自主部署项目(NKL2023-KP02) （NKL2023-KP02）
