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中文摘要：
分析了贡嘎山森林系统水循环过程,并通过水量平衡方法,计算了考虑植被及枯落物降雨截留条件下的降雨入渗系数.结果表明：考虑植被及枯落物降雨截留条件下的水量平衡方法与地下水动态分析法、基流分割法计算成果较为接近,计算方法较为正确;而不考虑植被与枯落物截留计算出降雨入渗系数偏大.森林覆盖区,林冠、树干及枯落物是降雨再分配的重要因素,降雨入渗系数受植被、植被类型、枯落物、枯落物状态的影响.研究不同植被类型及枯落物对降雨的截留及再分配特征,具有重要的生态水文意义.
英文摘要：
Water cycle is analyzed in the Gongga Mountain Forest. The coefficient of infiltration from precipitation is calculated with water balance method when the rainfall interception of vegetation and litterfall is considered. The results show that the coefficient of infiltration from precipitation calculated by water balance method is close to those calculated with the base flow separation method and the groundwater level dynamic analysis method. The calculation method used is reasonable. The coefficient of infiltration from precipitation calculated with water balance method without considering rainfall interception of vegetation and litterfall is slightly larger. Canopy, trunk and litterfall are the important factors in rainfall redistribution, and the coefficient of infiltration from precipitation is affected by vegetation, vegetation type, litter, litter status inforested region. Examination of the characteristics of the interception and redistribution of different vegetation types and litter is of important ecohydrological significance.
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