【摘要】 生态占用方法是一种可持续发展程度的生物物理评价方法。该方法从一个全新的角度考虑人类及其发展与生态环境的关系,通过跟踪区域能源与资源消费,将它们转化为这种物质流所必需的各种生物生产土地的面积,给出一个核算全球、国家、地区以及家庭和个人对自然资本利用的简明框架。该方法通过测算人类的生态占用与生态承载力之间的差距,定量地判断区域的发展是否处于生态承载力的范围之内,给评定对象的可持续发展提供科学依据。利用生态占用分析法以万源市为例,对其生态经济协调发展的状态进行实证研究。结果表明:供需总量呈现出非均衡特点,存在严重的生态赤字,目前处于不可持续发展状态;生态供需结构存在明显的不对称性;自然资源利用率低于西部和全国平均水平。最后;对其产生生态赤字的原因和减小生态赤字的可行性作简要分析。更多还原

【Abstract】 The ecological footprint methord is a biophysical assessment method of the human appropriation of ecological capacity,for measuring the ecological imperative of sustainability.It presents a simple frame work for national capital account.The ecological footprint is a function of population and per capital material consumption.The calculation of the model requires incorporation of revelant income,prevailing values,social-cultural factors and ecosystem functions in the estimate would lead to intractable information and dataprocessing problems.Estimating the ecological footprint of a defined population is a multistage process.By taking the Wanyuan City as an example,the ecological footprint indicator was applied to value the coordination state of the regional ecological economy.After research,the conslusion shows:the supply and need shows a characteristic of uneven,ecological deficit exists seriously,the coordination stale in Wanyuan city is not optimistic;the structure of supply-need shows a obvious dissymmetry;the ratio of use is much lower.Finally,the authors analyse the reason of ecological deficit and the feasible measures to reduce it.更多还原