大针茅草原群落高度、盖度在不同放牧制度下的动态规律总体一致。
The dynamic rule of height and coverage of Stipa grandis community under different grazing strategies was the same.
结果表明：降水量的年度变化及其季节分配直接导致了克氏针茅草原群落初级生产力的年度波动；
The results show that annual changes and seasonal distribution of precipitation led to the fluctuation of the primary productivity of the community;
大针茅草原虻幼虫的年际间密度变化、垂直与水平分布和年度的季节动态等在典型草原区具有代表性。
The annual and the seasonal change of density and the vertical and level distribution of the Tabanidae in the Stipa grandis steppe is typical example in the typical steppe.
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