本文以甘肃省天水市作为研究对象,基于生态足迹理论,对2004年、2009年以及2012年天水市的生态足迹和生态承载力进行定量计算和分析。结果显示:2004年天水市人均生态足迹为0.5754hm2,至2012年人均生态足迹增长至0.8508hm2,增长了0.2754hm2,呈现出逐渐递增的趋势;2004年天水市人均生态承载力为0.8008hm2,至2012年人均生态承载力递减至0.7689hm2,减少了0.0319hm2,呈现出逐渐递减的趋势;除草地、水域及化石燃料用地外,其他各类型土地利用自2004年至2012年一直处于生态盈余状态。
Based on the theory of ecological footprints, it was conducted the quantitative calculation and analysis on the ecological footprints and ecological carrying capacity of Tianshui City of Gansu Province in 2004, 2009 and 2012. The results showed that ecological footprints per person of Tianshui City is 0. 5754hm2 in 2004 and 0. 8508hm2 in 2012, with a increase of 0. 2754hm2, appearing the increasing trend. However, the ecological carrying capacity per person of Tianshui City is 0.8007hm2 in 2004 and 0. 7689hm/ in 2012, with a decrease of 0.0318hm2, appearing the decreasing trend. In general, the land use in Tianshui City from 2004 to 2012 appears the change trend from ecological surplus to the ecological deficit.