Abstract:

Based on the reconstruction results about the climate change facts and the process in the history in China,the relationship between climate change and the drought disasters in the Poyang Lake Basin since the Song Dynasty is analyzed by the research of historical documents.The results show that,the frequency of drought disaster increased,and the severe drought years and the consecutive dry year group might be appeared when the climate was dry and cold period.The temperature showed the trend of increasing,daily precipitation strength increased markedly,and the extreme events of flood or drought occurred more frequently by statistical analysis on the meteorological and hydrological data in recent 60 years. In order to effectively relief the drought,the management of water demand would be enhanced and water would be given priority conservation,the reservoirs in danger for safe would be repair to fully play the function of water resources projects,the reevaluation the function of existing water resources projects for implementation of adaptive management and the water resources projects in harmony with nature would be constructed to increase water supply capacity