摘要
As an important component of the natural cycle, climatic change can exert a great impact on water resources which play an important role in both the natural ecosystem and people's life and production. To understand the interdependence of climatic change and water resources, this paper analyzed the recent 50 years?climatic and hydrologic data at three sites in Anhui province, using statistics, linear trend variation, accumulated anomaly, coefficient of variability and coefficient of association methods. The results show that the temperatures and precipitations at these three sites have been increasing at different levels, and may keep increasing in the future. Affected by temperature, precipitation, evaporation and complex landform conditions, total water resources at Ningguo and Chaohu are increasing While which at Chuzhou is decreasing slightly. In general, there is an obvious and positive correlation between precipitation and total water resources. In the past 25 years, the inter-annual heterogeneous distribution of climatic and hydrologic elements is more conspicuous than the whole period, through which extreme climate events occur more frequently