短花针茅草地几种牧草利用率的确定  

The use factor of several plant species in Stipa breviflora rangeland

作　　者：杨静[1] 巴音巴特 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]乌兰浩特市草原站,乌兰浩特137400

出　　处：《内蒙古草业》2001年第4期10-14,共5页Inner Mongolia Prataculture

摘　　要：在短花针茅荒漠草原 ,利用高度—重量百分比方法确定了 1 3种牧草的利用率。结果表明 :对于大多牧草消耗高度占总高度的 5 0 % ,重量的消耗仅 2 0 %～ 3 0 % ;当牧草消耗高度80 %时 ,牧草的利用率为 70 %。在利用率确定的情况下 ,可推导出各种牧草的适宜留茬高度。The proper use factors of 13 plant species were determined by using percentage of height-weight in Stipa breviflora desert steppe. The results showed that the height of sheep grazing was 50%,and the intake of sheep was 20～30% of the total biomass; the use factor was 70% when the height of grazing was 80% of the whole height. The proper using height can be determined by use factor.

关 键 词：短花针茅草原 牧草利用率 留茬高度 放牧 载畜量 

分 类 号：S543[农业科学—作物学]