(四)林地土壤对降雨的调蓄能力林地土壤对降雨的调蓄能力,主要表现在对降雨的动态调蓄能力(渗透能力)和静态调蓄能力(贮水能力)两个方面。 1、土壤的渗透能力土壤的渗透能力主要取决于土壤的水分物理性质,其中与土壤的容重、非毛管孔隙、排水能力的关系最密切。土壤渗透能力的大小,一般用10℃时土壤稳渗渗透系数K_(10)来表示。从图1看:柳杉林和天然阔叶林的K_(10) (D) the ability of woodland soil to regulate rainfall The capacity of woodland to regulate rainfall is mainly manifested in two aspects: the dynamic regulation and storage capacity (penetration ability) and the static storage and storage capacity (storage capacity). 1, the infiltration of soil The infiltration capacity of soil mainly depends on the physical properties of soil moisture, which and soil bulk density, non-capillary pores, the ability to drain the most closely. The size of soil infiltration capacity, generally 10 ℃ when the soil permeability seepage permeability coefficient K_ (10) to represent. From Figure 1 to see: Cryptomeria fortunei and natural broadleaf forest K_ (10)