基于生态足迹的土地利用可持续性评价

Evaluation of Land Use Sustainability Based on Ecological Footprint Analysis

为了评价区域土地利用的可持续性,采用生态足迹分析方法,对恩施州2003～2009年生态足迹和生态承载进行计算并进行了预测。计算结果显示,2003～2009年恩施州人均生态足迹从0.941 7 hm2增长至1.333 9 hm2,人均生态承载从0.490 6 hm2增长至0.476 0 hm2。总体而言,恩施州的土地利用状况呈现生态赤字,从人均-0.451 1 hm2减少至-0.857 8 hm2。2003～2009年恩施州土地利用表现为不可持续性。同时,恩施州的万元GDP所占的生态足迹也有明显的降低。经过预测,恩施州的生态足迹将会呈现加大趋势,其土地不可持续的程度也会继续加大。

In order to evaluate the regional land use sustainability,the ecological footprint（EF） and ecological capacity（EC）of Enshi from 2003 to 2009 were calculated and predicted using the ecological footprint analysis method.The results showed that the per capita EF increased from 0.941 7 hm2 to 1.333 9 hm2,the per capita EC reduced from 0.490 6 hm2 to 0.476 0 hm2.Overall,the status of land use in Enshi was ecological deficit,and the land use was non-sustainable.Meanwhile,the EF of 10 000 yuan GDP reduced significantly.It was forecasted that the EF would show an increasing tendency,and the unsustainability of land use would continue to increase.