【摘要】 本文分析了林冠层、灌木草本层、枯枝落叶层的截留量及其削减的降雨能量，并以六盘山林区各森林流域为例．评论了垂直截留作用对林地土壤和森林流域水量收入的影响，阐明了森林植被垂直结构中各层次在保持水土中的地位。更多还原

【Abstract】 The interception amount and rainfall energy reduced by the layers of canopy,shrub -grass and litter are analysed and their effects on water balance in woodland soil and forestwatershed are evaluated in the paper.The place of each layer in forest vertical structure in conserving soil and water is claritied taking an example of forestry watershed in Liupan mountain region.更多还原