敖汉旗小流域典型林地土壤蓄水能力研究  

Study on Water Storage Ability of Forest Soil in Watershed in Aohan County

作　　者：郭城峰[1] 秦富仓[1] 岳永杰[1] 

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010019

出　　处：《内蒙古林业科技》2009年第2期6-9,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：内蒙古科技厅项目(20071926);国家"十一五"科技支撑项目(2006BAD03A0203)资助

摘　　要：对内蒙古敖汉旗大五家流域具有代表性的不同林地类型下以及不同立地条件下的土壤蓄水能力进行了测定和对比研究。结果表明:该流域内不同林地土壤蓄水量由大到小的排列顺序为:油松纯林(1 985.52t/hm2)>小叶杨纯林(1 923.81 t/hm2)>小叶杨柠条混交林(1 904.22 t/hm2)>山杏纯林(1 896.38 t/hm2)>油松沙棘混交林(1 867.98 t/hm2)>桑树山杏混交林(1 765.13 t/hm2)>柠条纯林(1 637.79 t/hm2)。乔木林和乔灌混交林的土壤蓄水能力明显大于灌木林,其中尤其以阴坡油松林的蓄水能力为最好;立地条件不同,土壤蓄水能力不同,无论何种林地,都是阴坡好于阳坡,下部好于上部。Water storage ability of soil in different site conditions and types of wood land was determined and compared in Dawujia watershed in Aohan County, Inner Mongolia. The results showed that the order （from big to small）of water storage ability of soil in different forest： pure forest of Pinus tabulaeformis （1 985.52 t/hm^2） 〉 pure forest of Populus simonii （ 1 923.81 t/hm^2 ） 〉 mixed forest of P. simonii and Caragana korshinskii （ 1 904. 22 t/hm^2 ） 〉 pure forest of Prunus ansu （ 1 896. 38 t/hm^2 ） 〉 mixed forest of P. tabulaeformis and Hippophae rhamnoides （ 1 867.98 t/hm^2） 〉 mixed forest of Morus alba and Prunus ansu （ 1 765.13 t/hm^2 ） 〉 pure forest of Caragana korshinskii （ 1 637.79 t/hm^2 ）. The water storage ability of soil of highwood and arbor - shrub mixed forest are stronger than shrub, which the water storage ability of soil in P. tabulaeformis forest in shady slope is the strongest. The water storage ability of soil is different with different site conditions, regardless of what kind of forest land, shady slope is better than sunny slope, lower part is better than upper part.

关 键 词：小流域 林地 土壤蓄水能力 

分 类 号：S152.7[农业科学—土壤学]