The results show that annual changes and seasonal distribution of precipitation led to the fluctuation of the primary productivity of the community;
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；
Seasonal changes in precipitation across the country, rainfall distribution is very uneven season. Precipitation in most parts of the country concentrated in the May to October.
降水的季节变化我国各地降水量季节分配很不均匀，全国大多数地方降水量集中在五月到十月。
The paper discusses the main features of amount of irregular precipitation in Auhui province -regional distribution unequelity, evident seasonal variation and great variation between years.
本文论述了安徽省降水量不均匀性的主要表现特征——区域分布不均、季节变化明显和年际变化大；
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