摘要
在春夏秋冬4个季节不同风速段对竺山湖及太湖西岸湖区底泥内源释放进行了研究,利用沉积物捕获器收集沉积物,采用Gansith公式法计算了沉积物的再悬浮通量;对代表不同风浪作用下的悬浮物进行了静沉降实验,计算了悬浮物的静沉降通量。对太湖站33个观测站近10年的的风速资料进行统计分析并估算了太湖年均内源释放量。结果表明,竺山湖及太湖西岸湖区年平均内源释放量COD,TN,TP分别为4 100,647.8和23.0t。
The endogenous release by sediment in Zhushan lake and the west bank of Taihu lake are carried out research with different wind speed section in four seasons. Sediment samples was collected using sediment traps, sediment resuspension flux was calculated by the formula Gansith; and static experiments of suspended solids under different winds and waves were conducted and the suspended matter deposition flux was calculated. On the basis of nearly 10 years wind data from 33 Lake Stations, the annual average endogenous release of the Taihu lake was estimated. The results showed that the annual average endogennus release of COD, TN, TP of Zhushan lake and the west bank of Taihu lake were 4 100, 647.8 and 23.0 t respectively.
出处
《环境科技》
2011年第1期45-47,52,共4页
Environmental Science and Technology
关键词
竺山湖
太湖西岸
内源释放
再悬浮
沉积物
Zhushan lake
West bank of Taihu lake
Endogenous release
Re-suspended
Sediment
