We assayed COD, TN and TP in overlying water in the presence of dredged and un-dredged sediment to compare the dredging effectiveness.

• 分别在已疏浚和未疏浚河道底泥影响下,考察上覆水体的COD、TN、TP等特征值,以比较疏浚对于改善底泥对上覆水体的影响效果。