Abstract
Due to huge hydropower energy in the upper Yangtze River basin, discharge projection is very important for integrated water resources development and management under the background of regional climate change. Projections of river discharge at Yichang hydrological station under three greenhouse gas emission scenarios are studied by two kinds of methods. The projection results show that from 2011 to 2050, annual river discharge at Yichang hydrological station has no obvious trends, but future seasonal discharges have different trends under different greenhouse gas emission scenarios, which increase the difficulties of utilization of hydropower energy in the upper Yangtze River basin.
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