基于2010年发生在中国西南五省市的百年一遇的大旱,以昆明市的松华坝水库和云龙水库为例,通过水两水库大旱期间水位曲线,月入流和出流量分析,同时对径流量和外部因子关系分析,得出结论:大旱对水库影响十分严重;水库入流量和蒸发量呈显著相关;影响水库入流的最主要外部因素是集水区森林资源的数量和质量。 Based on the once-in-a-century drought in 2010 in five provinces and municipalities in southwest China, taking Songhuaba Reservoir and Yunlong Reservoir in Kunming as an example, through the analysis of water level curve, monthly inflow and outflow during the severe drought in the Shuangshui Reservoir, The analysis of the relationship between runoff and external factors concluded that the severe drought affected the reservoir seriously, and the inflow and evaporation of the reservoir were significantly correlated. The most important external factor affecting the inflow was the quantity and quality of forest resources in the catchment.