修正后的生态足迹分析内陆山地城市土地生态经济系统——以贵阳市为例

Land eco-economics in an inland mountainous urban region:Modifying the ecological footprint model to study the city of Guiyang

使用修正后的生态足迹研究方法,结合万元GDP的生态足迹对贵阳市土地生态经济系统进行研究。在对生态足迹模型进行能源和电力的贸易修正后分析贵阳市土地生态经济系统,得出修正前后对比结果,显示修正后的生态足迹更贴近实际情况,贵阳市土地承载力主要贡献为耕地和林地,电力主要是靠外部输入供给。2007到2011年贵阳市生态赤字上升,其中化石能源用地和牧草地生态赤字中占主要贡献地位,而万元GDP的生态足迹逐年下降,说明贵阳作为内陆山地城市,在其丰富的生态资源基础上人们不断发展生产力,提高资源利用率。

This paper uses a revised version of the ecological footprint method, combining it with the 10,000 （RMB） yuan GDP ecological footprint study of Guiyang＇s land ecological and economic system. Comparing the results of ecological footprint model, both before and after correction, shows that the revised model provides a more exact ecological footprint of Guiyang. Most of Guiyang＇s land carrying capacity consists of farmland and forest, and the power supply depends on external input. From 2007 to 2011, fossil fuel energy land and grassland accounts for much of the ecological deficit in Guiyang, a city that is continually developing their economy through external energy input. Meanwhile the ecological footprint of 10,000 yuan GDP is decreasing annually. Guiyang is an inland mountainous city, and based on its abundant ecological resources people are constantly improving the utilization rate of resources.