生态足迹改进模型及在江苏省耕地利用评价中的应用  

A modified ecological footprint model and its application to the evaluation of cropland use in Jinagsu Province

作　　者：刘钦普[1] 林振山[1] 冯年华[2] 

机构地区：[1]南京师范大学地理科学学院,南京210097 [2]南京晓庄学院地理科学学院,南京210017

出　　处：《生态学杂志》2007年第10期1685-1689,共5页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(40371108);江苏高校哲学社会科学计划研究资助项目(05SJD790018)

摘　　要：将能值分析理论引入生态足迹的研究中,建立了改进的生态足迹模型,并应用于江苏省耕地利用的可持续性评价,同时用改进模型和传统模型对江苏省耕地生态足迹进行比较。结果表明:改进模型和传统模型的江苏省耕地生态赤字分别为0.224和0.06hm2·人-1;耕地生态可持续指数分别为0.29和0.41;江苏省的耕地利用处于不可持续状态。与传统模型相比,改进生态足迹模型的研究结果更接近江苏省的实际情况。Based on the theory of emergy analysis, a modified ecological footprint model was established and applied to evaluate the sustainability of cropland use in Jiangsu Province, with the ecological footprint of the cropland use calculated by the modified model and conventional model compared. The results showed that the ecological deficit of Jiangsu cropland was 0. 224 hm^2· cap^-1 and 0. 06 hm^2 · cap^-1, and the ecological sustainability index was 0. 29 and 0. 41, when calculated with the modified model and conventional model respectively, indicating that the crop-land use in Jiangsu was unsustainable. Compared with conventional model, the modified model could make the research results further closer to the reality of Jiangsu cropland use.

关 键 词：耕地生态足迹 耕地生态承载力 生态可持续指数 江苏省 

分 类 号：F323.211[经济管理—产业经济]