Characteristics of vertical suspended sediment concentration distribution in the Yangtze Estuary
Recently the sediment discharge decline due to the construction of dams, soil and water conservation projects in the upper and middle reaches, as well as human interventions (large-scale reclamation, impoundment and deep water project) in the estuary have greatly impacted the sedimentary and geomorphologic evolution of the Yangtze Estuary. In this paper, sustained measurements were performed in three distinctive channels of Yangtze Estuary from neap to spring tide. The results indicated that the suspended sediment in the turbidity maximum zone of Yangtze Estuary remained high, despite the remarkable decrease of sediment discharge from the river drainage. Stratification and gravitational circulation played crucial parts in the trapping and vertical diffusion of suspended sediment. Resuspended sediment from the sea-bed and tidal flat has become an essential source of sediment with the reduction of sediment discharge from upper reaches of Yangtze River.
SSC distribution Turbidity maximum zone Vertical gradient Yangtze Estuary
H.Y.Yao J.F.Li Z.J.Dai C.J.Jiang
State Key Laboratory of Esturine and Coastal Rearch, East China Normal University, Shanghai 20062, C Hydraulic Science & Engineering, Yangzhou University, Yangzhou 225009, China
国际会议
The 3rd Biennial ISRS Symposium Achieving Healthy and Viable Rivers (ISRS)第3届国际河流大会
北京
英文
570-583
2013-08-05（万方平台首次上网日期，不代表论文的发表时间）