中文摘要：

目的 对西安市可持续发展状况进行定量评价。方法 运用以生态足迹、生态承载力为理论基础测度生态赤字的一种生物物理学方法。结果 西安市1997-2005年的人均生态足迹从1997年的0．8542hm^2增加到2005年的1．7575hm^2，表明生态承栽力的供给不能满足生态足迹的需求，得出西安市9年来生态赤字由0．528hm^2增加到1．467 1 hm^2，表明西安市的发展已经处于一种不可持续状态。结论 分析西安市发展不可持续的原因，提出实现可持续发展应从降低生态足迹和提高生态承载力入手的对策。

英文摘要：

Aim To evaluate the sustainable development of Xi＇an quantitatively. Methods Calculating ecological deficit on the basis of ecological footprint and ecological carrying capacity theories, this is a biophysics method. Results At first the per capita ecological footprint and ecological carrying capacity were calculated in Xi＇ an from 1997 to 2005 ,the ecological deficit of these nine years was elicited were calculated. The results show that the devel- opment of Xi＇an in these years has been in a continuous unsustainable development. Conclusion Analysis of rea- sons of unsustainable development in Xi＇an provides the strategies of sustainable development and the direction to improvement.