额济纳绿洲荒漠植被退化的水环境的时空演变分析

The Analysis of the Space-time Evolution of the Water Environment Caused the Desert Vegetation Degrading in Ejin Oasis

额济纳绿洲作为一个极端干旱的荒漠绿洲,黑河是其惟一的水源.随着黑河地表来水量的迅速减少和水质的严重恶化,额济纳旗地下水位快速下降,水质恶化,绿洲荒漠植被退化,生态环境问题日益突出.本文从分析额济纳绿洲水环境的时空演变着手,论证了荒漠植被与水环境的关系,能为额济纳绿洲生态环境的保护与治理提供科学依据.

As an extremely arid desert oasis, Heihe River is the only source of water in Ejin Oasis. With the fast reducing of water quantity and the serious deteriorating of water quality of the Heihe River, the groundwater level drops fast. Water quality worsens, the oasis desert vegetation degradates and the ecological environment question is outstanding day by day in Ejin Oasis. Start with analyzing the space-time evolution of the water environment in Ejin Oasis,this text has proved the relation of the desert vegetation and water environment, and offered scientific basis for the protection and administration to the ecological environment of the oasis.