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通过对女儿寨森林小流域11块标准地土壤渗透性能的研究表明,不同标准地的贮水能力受土壤的厚度和非毛管孔隙度的影响较大,在112~598.5 t/hm2之间;土壤的初渗速度在18.62~38.94 mm/min之间;土壤的稳渗速度在1.42~7.61 mm/min之间;次生林比人工林具有更强的渗透性能;土壤入渗过程的回归方程表现为乘幂函数形式,回归系数R在0.88~0.99之间,方程拟合效果较好。
Through the study on the soil permeability of eleven standard plots in the forest of Dazhai, it was found that the water storage capacity of different standard areas was greatly affected by soil thickness and non-capillary porosity, ranging from 112 to 598.5 t / hm2. Soil The initial infiltration rate was between 18.62 and 38.94 mm / min. The steady infiltration rate of soil was between 1.42 and 7.61 mm / min. The secondary forest had stronger permeability than the artificial forest. The regression equation of soil infiltration process was expressed as Power function form, the regression coefficient R between 0.88 ~ 0.99, the equation fitting better.