兰州市生态经济系统能值分析及其可持续性评价  

Energy Analysis and Sustainability Assessment on the Ecological-economic System of Lanzhou City

作　　者：刘海清[1] 

机构地区：[1]西北师范大学地理环境科学学院,兰州730070

出　　处：《干旱区资源与环境》2008年第5期15-19,共5页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金重点项目"环境变化条件下干旱区内陆河流域水资源可持续利用研究"(编号:40235053);国家自然科学基金项目"基于环境经济账户的可持续发展评价-以张掖地区为例"(编号:40201019)资助

摘　　要：城市化的进程越来越快,迫切需要运用新的科学手段和定量的研究方法来研究城市生态经济系统,为日益突出的人口、资源和环境问题的协调发展提供理论依据。本文以兰州市为例,采用能值分析理论,对兰州市1994-2004年的能值自给率、能值输出输入量比、能值投入率、环境负载率、能值-货币比、能值使用密度、可持续发展指数、人均能值用量、人口承载力、进行了计算和变化趋势分析,并与其它地区和国家进行比较。定量描述了兰州市生态经济格局和发展状况的总体特征,为进一步利用兰州本地资源,合理配置产业,实现可持续发展目标提供了策略和建议。The process of urbanization is faster and faster, so the new scientific means and quantitative research methods are needed to study the ecosystem urgently and offer some theoretical basis for resolving the increasingly prominent population, resources and environment problem. This research took Lanzhou as a case, using the theory of emergy analysis to calculate and analyze the trend of change of emergy self - sufficiency ratio, ratio of out- put - input, ratio of input, environmental loading ratio, emergy dollar ratio, emergy density, emergy based sustainability index, emergy per person, carrying capacity of population in Lanzhou from 1997 to 2004, then these indices were used to take comparisons between Lanzhou and other countries and regions. The ecological economic structure and the characters of development status were quantitatively describe, suggestions were put forward for making use of the resources, collocating industries in reason , realizing the sustainable development in Lanzhou City.

关 键 词：生态经济系统 能值分析 可持续性 

分 类 号：X171.1[环境科学与工程—环境科学]