春季禁牧对内蒙古草原植被的影响  

A Freliminary Study of the Effects of Deferred Spring Grazing on the Pasture Vegetation

作　　者：赵钢[1] 曹子龙[1] 李青丰[1] 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010018

出　　处：《草地学报》2003年第2期183-188,共6页Acta Agrestia Sinica

基　　金：中科院知识创新工程课题 ( KSCX1-0 8-0 1) ;内蒙古农业大学青年基金课题 ( K13 60 4)资助

摘　　要：20 0 2年春季进行禁牧与自由放牧的对比研究。结果表明 ,春季禁牧对草原植被的群落特征具有十分显著的影响 ;在禁牧区 ,植被产草量、盖度、高度和密度等与自由放牧区之间差异显著 (P<0 .0 5 )。春季禁牧有利于草原植被的可持续利用。同时 ,禁牧期的长短对草原植被也有一定的影响 ,但是不显著。The effects of deferred spring grazing and continuous grazing on the vegetation characteristics of the natural pasture were studied during the ungraing persod of spring of 2002. The result shows that both the plant yield and coverage, and the plant height and density of the deferred spring grazing pasture far surpassed those of the continuous grazing pasture (P<0.05). Deferred spring grazing contributes to the sustainable development of the pasture vegetation. Duration of ungrazing period in the spring affects the flourishing of the pasture vegetation, though not very vigorously.

关 键 词：春季禁牧 群落特征 自由放牧 内蒙古 草原植被 可持续利用 草原畜牧业 产草量 植被组成 

分 类 号：S812.8[农业科学—草业科学]