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基于能值分析的商洛市生态足迹研究

     

摘要

The modified model of ecological footprint and the theory of energy analysis are used to calculate the ecological footprint and ecological carrying capacity of Shangluo. The result shows that the ecological footprint is 3. 072 5 hm2 ,and the ecological carrying capacity is 1. 550 2 hm2. Comparing the results,we can conclude the ecological deficit is 1. 522 3 hm2 in the Shangluo in 2007. From a deeper analysis of the ecological footprint, we can find that the grassland, the arable land and the land used for buildings take up the largest percentage,accounting for 54. 7% ,19% and 16. 5%,respectively meanwhile the forest land and waters take the least percentage.%应用能值理论改进的生态足迹模型,计算了商洛市的生态足迹和生态承载力状况,结果表明:2007年商洛市的人均生态承载力为1.550 2 hm2/人,人均生态足迹为3.072 5 hm2/人,人均生态赤字为1.522 3 hm2/人,说明商洛市处于不利于可持续发展状态.通过对人均生态足迹构成分析,得知牧草地、耕地和建筑用地比重最大,分别占到了54.7%、19%和16.5%,而林地和水域所占生物生态性土地面积最小.

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