基于传统和能值改进生态足迹模型的武汉市可持续发展状态比较分析

运用传统生态足迹及其改进的能值生态足迹模型分析了2009年武汉市的可持续发展状态,结果表明：采用能值生态足迹法计算得到的武汉市人均生态赤字为3.8629hm2,采用传统生态足迹法计算得到的武汉市人均生态赤字为2.0169hm2。这两种方法均显示武汉市处于不可持续的发展状态。能值生态足迹法引入能量流动反映人类对资源的需求和自然对人类的供给的关系,并且采用了相比于传统生态足迹法的均衡因子、产出因子更稳定的参数—能值转换率、能值密度进行计算,能获得更为准确的生态承载力数据。

Sustainable Development of Wuhan City Based on Methods of Conventional Ecological Footprint and Energy Ecological Footprint

This article uses the traditional ecological footprint method and its improved model of energy ecological footprint to analyae the state of the sustainable development of Wuhan City of Hubei Province in 2009. The results show that the per capita ecological deficit calculated by the method of energy ecological footprint is 3. 8629 hm^2, and the per capita ecological deficit calcultaed by the method of traditional ecological footprint is 2. 0169 hm^2. The results obtained by the two methods repectively show that Wuhan is in the state of unsustainable development. The emergy ecological footprint method introduces the energy flow to reflect the relationship between human resource demand and supply of nature to human, and adopts parameter- energy conversion rate and energy density to calculte the ecological carrying capacity data which are more accurate.