湖泊科学2017，Vol.29Issue(1)：22-31,10.DOI:10.18307/2017.0103
太湖水龄分布特征及“引江济太”工程对其的影响∗
Water age distribution of the Lake Taihu and impact of the Yangtze River to Lake Taihu Water Transfer Project on the water age
摘要
Abstract
Lake Taihu is a typical wind-driven lake, and wind plays an important role in process of water exchange and concentra-tion transportation. Based on Environmental Fluid Dynamics Model (EFDC), water age model and conservative dye model were set up to study characteristics of seasonal water age distribution and to further reveal the impacts of the Wangyu River Water Transfer Project and the Xingou River to the Lake Taihu Transfer Project on water age distribution on basis of winds, inflow and outflow, operations of existing water transfer projects. It is concluded that by the numerical test results, water exchange of Lake Taihu is mainly influenced by the monsoons. Water age is comparably larger in the spring and summer, which indicates the water exchange rate in the spring and summer is lower than that in the autumn and winter. Water ages near inflow locations are comparably smaller, and the locations far from the inflows are larger. Water age is smaller when the flow direction is the same as wind direction, while the exchange of water is increased at the same time and on the contrary water exchange is reduced. During operation of the Wangyu River Water Transfer Project, the water ages of the Gonghu Bay and Middle Lake Taihu are basically reduced, and water exchange is increased in the areas. During operation of the Xingou River Water Transfer Project, the water ages of the Meiliang Bay are basi-cally reduced, and water quality is improved in the area. The water exchange of Lake Taihu will be significantly improved with con-tinuous or occasional transfer operations.关键词
太湖/风场/染色剂/水龄/EFDC模型Key words
Lake Taihu/wind/dye/water age/Environmental Fluid Dynamics Model引用本文复制引用
黄春琳,李熙,孙永远..太湖水龄分布特征及“引江济太”工程对其的影响∗[J].湖泊科学,2017,29(1):22-31,10.基金项目
江苏省水利科技项目（2015054）和江西省水利科技项目（KT201405）联合资助 （）
