Sediment resuspension in the Lake Taihu, China

被引:0
|
作者
HU Chunhua1
2. Graduate School of the Chinese Academy of Sciences
3. Hehai University
机构
关键词
sediment suspension; sediment transport; resuspension; large shallow lake; Lake Taihu;
D O I
暂无
中图分类号
TV142 [泥沙运动];
学科分类号
081502 ;
摘要
In order to examine the intensity of surfi-cial sediment resuspension in Lake Taihu, a large shallow lake in eastern China, suspended sediment concentrations (SSCs) were measured on the basis of analysis of water samples collected using an in-novative multi-level water sampler. The results show that under calm weather conditions, the SSC is rela-tively homogenous through the entire water column. However, when strong winds occur, the SSC in the bottom layer is 1-2 orders of magnitude greater than in the surface layer; thus, in this case, the amount of total suspended matter in the water column cannot be estimated using the SSC values of the surface layer alone. Furthermore, the depth of disturbance, or the thickness of the sediment layer that is set in mo-tion by wind-wave induced currents, is of the order of 100 mm.
引用
收藏
页码:731 / 737
页数:7
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