Study on the Influence of Reservoir Dispatch of the Upper Yangtze River on the Runoff Control

The reservoir group focusing on the Three Georges has been established in upper Yangtze River, with a total regulation capacity of 51.5 billion m3. dispatch plays an important role regulating runoff. Economic activity River estuary poses high requirements for water resources security. quality main supply reservoirs is influenced by saltwater intrusion. upstream can enhance sea inlet runoff and mitigate intrusion hazard. In order to clarify group’s influence quantity estuary, author designed three typical scenarios analyze flow rate change different Datong section. According findings, secure dry season. Through normal dispatch, cut days less than 100 million m3/s from 50.6 8.8 days. special year, sole emergency supplement will exert power generation. joint operation basically eliminate such influence.