The drought-resistant dispatching capacity of the reservoir mainly depends on the increased flow during the dry season, that is, considering the storage capacity of the upstream Three Gorges Reservoir of 7.4-6.5438+0.89 billion cubic meters, the average output during the dry season is 4.99-5.3 million kilowatts.
In dry season, the average flow of the middle and lower reaches can be increased by 1660m3/s, and in dry season, the average flow can be increased by 2390m3/s ... These increased flows are limited by the operation of the upstream reservoir, the operating water level of the Three Gorges Reservoir in dry season and the operation and dispatch of the power grid, so it is impossible to ensure a large discharge increase in a short time.
Extended data:
Under the characteristics of existing reservoirs, the potential of Three Gorges Reservoir to solve the problem of drought and water shortage in the middle and lower reaches lies in how to allocate the storage capacity of 6-7 months165 billion cubic meters. If the emissions are balanced, it can increase by 1660-2390 cubic meters per second.
If the discharge is increased within a certain period of time, the water flow conditions in the middle and lower reaches can be obviously improved, but the normal power generation plan needs to be changed, which may affect the guarantee rate of power generation and shipping in the reservoir.
There are 150 national cultural relics and historic sites in the Three Gorges Reservoir. A number of island and lake landscapes that can be used as tourist attractions will be added to the 650km reach from Sandouping, Yichang to Chongqing and its tributary valleys, including 1 1 lake and 14 island and peninsula. For example, Bai Di Island, which is surrounded by the famous Lake Baidicheng and inhabited by waterfowl, has turned Shi Baozhai into a treasure island.
Baidu Encyclopedia-Three Gorges Reservoir