【摘要】 讨论了次降雨入渗补给系数的定义及其在地下水资源计算评价中的作用；依据统计理论，评价了次降雨入渗补给系数的一般统计特征；在此基础上，进行该系数的确定性模型研究及其相应的检验，说明了次降雨入渗补给系数的实际分布和伽马模型及威布尔模型具有很好的一致性．更多还原

【Abstract】 This paper gives a new definition of the sub coefficient of recharge by rainfall infiltration and shows its important role in the estimation of groundwater resources.Based on the theory of statistics classical statistical parameters of the observed data are estimated.The distribution characteristics of the coefficient of recharge by rainfall infiltration have been studied with theoretical models of the Gamma and the Weibull distribution.Standard statistical tests have also been used to judge the goodness of fit of the theoretical distributions to the observed data.更多还原