Effects of Sediment Dredging on Nutrient Release and Eutrophication in the Gate-Controlled Estuary of Northern Taihu Lake

Figure 5

Chemical components of the nutrients observed under dynamic release conditions. The dotted lines indicate the slight and moderate pollution levels. The solid line is the pollution risk due to dynamic release (cumulative nutrient concentrations over time), while MD and HD are the 90 and 120 r/min stirring speeds, respectively.