【摘要】 通过对三峡库区重庆缙云山四种典型林分(针阔叶混交林,阔叶林,楠竹林和灌木林)林地土壤的孔隙分布及贮水特征研究表明,林地土壤的快速度贮水量(即非毛管暂时滞留水)是农地的1.3~2倍,有效蓄水容量为农地土壤的1.04~1.77倍,林地土壤非毛管贮水量和有效蓄水容量的大小顺序均为灌木林(171.27,345.18 mm)>针阔混交林(142.98,240.19 mm)>阔叶林(128.22,230.18 mm)>楠竹林(124.41,202.92 mm)。在重庆缙云几种林分的林地土壤中,水源涵养功能最强的是灌木林,最小的是楠竹林。水源涵养林对径流量的调节功能主要反映在林地非毛管孔隙的贮水量。更多还原

【Abstract】 The research on the forest soil pore distribution and water storage properties of 4 typical forests(mixed wood,broadleaf forest,bamboo forest and shrub forest)in Jinyun mountain in Chongqing City shows that,the forest soil fast water retaining capacity(temporary non-capillary water capacity) is 1.3～2 times arable farmland,and the effective store water capacity is 1.04～1.77 times arable farmland.The forest soil fast water retaining and store water capacity order of 4 typical forests is shrub forest(171.27,345.18 mm) > mixed wood(142.98,240.19 mm) > broadleaf forest(128.22,230.18 mm) > bamboo forest(124.41,202.92 mm).Shrubs has the maximal water conservation function,and bamboo has the minimal function in the 4 typical forests in Jinyun mountain.更多还原