钱塘江河口河流段人类活动对河床的影响

Impact of human activities on the river reach in the Qiantang Estuary

钱塘江河口的河流段(径流为主导因素)人类活动包括:新安江水库大坝修建后洪枯流量、造床流量的改变、河道挖沙、支汊封堵、筑堤建桥等,本文对其河道断面大小、形态及洪潮水位的影响进行验证和研究。

Human acti include： the constructi bankfull discharge, the vities in the river reach （dorminated by the runoff discharge） of the Qiantang Estuary on and operation of Xinanjiang Reservoir, the changes of flood and drying discharge and sand excavation, field data this paper respectively studied fork channel blockage, the construction of bridges and docks. By using the these effects on the river bed morphology, flood level and tidal level.