塔里木河流域下游的气候变化与生态环境

在了解塔里木河水量变化事实的基础上，使用塔里木河干流沿线１１个气象站３７年（１９６１～１９９７）的气候观测资料，揭示了塔里木河流域的气候变化特征，着重分析了沙尘暴、浮尘和大风等灾害的时空分布特征，认为近３０年尤其是９０年代以来塔里木河流域上中游气候条件总的来说是向好的方向变化，其自然降水的增加十分有利于塔里木流域内各河流水量的稳定增加和地表面植被的生物，但塔里木河流域下游气候变化与上中游并不完全一

Relationship between Climate Change and Ecological Environmentin the Lower Reaches of Tarim River Basin

On the basis of streamflow change in Tarim River, make use of climate data of thirty-seven years from 1961 to 1997 in 11 weather stations in Tarim River basin. Expound climate change features in Tarim River basin, focuses on analysis on the times and spaces distribution of sandstorm, floating dust and gale etc. The results show that climate conditions of the upper and middle reaches in Tarim River basin tend to be better in recent thirty years, especially in 1990's.Nature precipitation increase have take advantage of streamflow increasing in Tarim and ground vegetation growing River . But climate change of the lower reaches is not consistent with the upper and middle reaches in Tarim River basin.The deterioration of ecological environment in the lower reaches have something to do with the climste change.