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中文摘要：
绿洲是干旱区人类主要活动场所,并在干旱区山地—荒漠—绿洲三大系统中处于中心地位。但是随着人口的增加、社会经济的发展,绿洲生态系统所承载的压力日益增加,生态危机及可持续发展问题十分突出。绿洲的空间结构也发生变化,绿洲空间的结构,直接影响绿洲稳定性和区域经济的发展速度。以新疆且末绿洲为例,运用定性定量分析相结合方法,利用实地调查、统计资料和且末绿洲1970、1990年和2000年3个不同时期的遥感数据进行解译、分类与统计处理,揭示了且末天然绿洲空间演变和现状,并研究和分析了且末天然绿洲人工化过程及其驱动力。结果表明,整个绿洲多年来是扩张的趋势,这种绿洲扩张从绿洲空间规模和人口增长方面明显的表现出来。人口的迅速增加,也是成为绿洲人工化的主导因子。
英文摘要：
Oasis is the center of Mountain-Oasis-Desert system in arid areas where most of the human activity place.But,with the fast increase of population and rapid growth of social economy,the pressure on the oasis eco-system increased that it consequently lead to the problems of ecological crisis and sustainable development.In this paper,we studied the spatio-temporal changes,artificializing process and its driving forces of Qarqan natural oasis by applying both quantitative and qualitative analysis and field survey data,statistical data and the remote sensing images of Qarqan oasis in 1970,1990 and 2000 years.Results indicated that oasis existed here have been expanding throughout the years especially in the aspects of oasis and population range.Population growth is one of the main factors which contributes to the artificializing of natural oasis.
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