中文摘要：

利用双环法对祁连山西水林区的亚高山灌丛植被类型（吉拉柳、箭叶锦鸡儿、金露梅、鲜黄小檗、甘青锦鸡儿）进行了土壤入渗性能试验,分析不同灌丛植被对土壤入渗性能的影响。结果表明,不同灌木林土壤蓄水能力和入渗性能存在较大差异,吉拉柳的蓄水能力和入渗性能均好于其它灌丛类型,甘青锦鸡儿最小;不同灌木林土壤的初渗率在3.80~53.93mm/min,稳渗率在0.95~24.12mm/min,总体上是吉拉柳〉箭叶锦鸡儿〉金露梅〉鲜黄小檗〉甘青锦鸡儿;Kostiakov公式和Horton公式对土壤入渗过程的拟合精度均高于Philip公式;土壤初渗速率和稳渗速率与土壤有机质含量、自然含水量和孔隙度尤其是非毛管孔隙度呈极显著正相关,与土壤密度呈极显著负相关。

英文摘要：

Used double-ring method based on field investigation in different typical shrubs（Salix gilashanica,Caragana jubata,Dasiphora fruticosa,Berberis diaphanaand Caragana tangutica）,the soil infiltration capacity of sub-alpine shrub vegetation types in Xishui forest zone of Qilian Mountains were studied and analyed the different shrub vegetation types effects on soil infiltration capacity.The results showed that water-holding capacity and infiltration capacity of Salix gilashanica were better than other types,water-holding capacity and infiltration capacity of Caragana tangutica were minimal.Soil initial infiltration rate was at 3.80~53.93mm/min,the steady infiltration rate was at 0.95~24.12 mm/min,the order of steady-state infiltration rate of different typical shrubs was Salix gilashanica〉Caragana jubata〉Dasiphora fruticosa〉Berberis diaphana〉Caragana tangutica.Fitting precision with Kostiakov equation and Horton＇s model were higher than that with Philip＇s equation.A significant positive correlation was observed between soil initial infiltration rate,steady infiltration rate and soil organic matter content,natural water content and porosity especially the noncapillary poropsity,but there was a significant negative correlation between soil initial infiltration rate,steady infiltration rate and soil density.