高寒草甸生态系统中轮牧实验的系统分析

Systematic Analysis of Rotation Grazing Experiment in Alpine Meadow Ecosystem

采用高寒草甸放牧生态统的分室模型对高寒草甸生态系统轮牧实验进行系统分析。结果表明：１）轮牧并不一定能节约牧草。它可以在有限的草甸上控制绵羊生长速度或牧草消耗速度；使绵羊顺利地渡过冬春季，２）绵羊体重达到最大值的时间与放牧强度成反比。

A rotation grazing experiment in alpine meadow ecosystem was analysedsystematically. The result shows that 1) Rotation can not save grass. But it can controlsheep growth rate or grazing speed and decide if sheep can live through winter.2)The timewhich sheep reach their biggest liveweight is the direct proportin to grazing rate.