短花针茅荒漠草原土壤含水量和地上现存量对禁牧休牧的响应  

Response of Soil Water Content and Above Ground Standing Crop to Banning and Deferral Grazing in the Stipa breviflora Desert Grassland

作　　者：褚文彬[1] 卫智军[1] 运向军[1] 闫瑞瑞[1] 张小英[1] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019

出　　处：《中国草地学报》2008年第3期106-109,共4页Chinese Journal of Grassland

基　　金：草地生态恢复与草畜平衡关键技术研究课题(20006BAD16B01);内蒙古草业研究院课题

摘　　要：在短花针茅荒漠草原，对禁牧、休牧和全年自由放牧条件下的草地进行了土壤含水量和地上现存量的测定。结果表明，随休牧期的缩短土壤含水量呈逐渐下降趋势，禁牧、休牧有利于地上现存量的增加，地上现存量主要受0-30cm土壤含水量的制约。Soil water content and the above ground standing crop under banning grazing and deferral grazing in the Stipa breviflora desert grassland were studied. The results showed as follows. With the period of banning grazing was shortened, soil water content was gradually declined; the banning grazing and deferral grazing could increase the above ground standing crop, the above ground standing crop were mainly limited by soil water content of 0-30cm soil in depths.

关 键 词：禁牧 休牧 土壤含水量 地上现存量 

分 类 号：S812[农业科学—草业科学]