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

Figure 6

Characteristics of nutrient release (a) and PCA (b). Numbers 1–9 refer to V1T1, V1T2, V2T1, V2T2, V3T1, V3T2, ST2, MT2, and BT2, respectively. V1 to V3 are the stirring speeds of 0, 90, and 120 r/min, respectively. T1 and T2 are the temperatures of 20 and 30°C, respectively. M, B, and S are the sediment depths at 0–15, 16–30, and 31–45 cm, respectively.

(a)

(b)