四、森林土壤蓄水量森林土壤涵养水分的能力取决于土壤和森林植物的综合状况。落到林地上的部分雨水和融化的雪水涵养于土壤的孔隙内,主要是蓄于非毛管孔隙内。因此土壤非毛管孔隙的多少与土壤涵养水分的能力密切相关。不同母质形成的土壤和不同植被类型的土壤孔隙度不一样,它们综合状况的不同使蓄水能力有很大的差异。不同母质上形成的土壤,质地不同,其非 Fourth, forest soil water storage capacity of forest soil water conservation depends on the integrated status of soil and forest plants. Part of the rain and meltwater falling onto the woodland are contained in soil pores, mainly in non-capillary pores. Therefore, the number of soil non-capillary pores and soil moisture capacity is closely related. The soil formed by different parent materials and the soil types with different vegetation types have different porosities, and the differences in their integrated conditions make the water storage capacity greatly different. Different parent material formed on the soil, different texture, its non