绵阳市生态足迹和生态承载力动态变化分析  

Dynamics of Ecological Footprints and Ecological Capacity in Mianyang City

作　　者：石建屏[1] 李新[2] 叶元蕾[2] 

机构地区：[1]绵阳职业技术学院材料工程系,四川绵阳621000 [2]绵阳师范学院资源环境工程学院,四川绵阳621000

出　　处：《水土保持通报》2012年第4期276-280,共5页Bulletin of Soil and Water Conservation

基　　金：四川省教育厅科研项目"生态城市建设水环境承载力分析与保护对策研究"(10ZC117);四川省循环经济研究中心资助项目(XHJJ-1016)

摘　　要：生态足迹法是用于评价区域发展可持续性的重要方法。以四川省地震重灾区绵阳市为例,计算了2000—2009年生态足迹和生态承载力。结果表明,该区人均生态足迹呈波动式增长,由2000年的1.377 2hm2增长到2009年的2.408 7hm2;人均生态承载力增长缓慢,人均生态赤字由0.954 4hm2增长到1.922 0hm2;生态压力指数由3.257 6增长到4.949 3;万元GDP生态足迹由2.252 1下降到1.599 6;2008年"5.12"汶川地震后,生态足迹出现急剧增长。随着近年来绵阳市资源消耗增加,发展模式呈不可持续状态,社会经济发展与生态环境的协调性较差。为实现生态城市建设规划目标和可持续发展战略,建议适当控制人口增量,调整农业产业结构,保护耕地资源,转变人们的生活和生产方式。Ecological footprint（EF） is one of the most important methods to evaluate the sustainability of re- gion development. The ecological footprints and ecological capacity（EC） were calculated based on the ecolog- ical footprint theory and model for Mianyang City during 2000 to 2009. The results show that within the study period, the ecological footprint per capita increased, with apparent fluctuations, from 1. 377 2 hm2 to 2. 408 7 hm2 , the ecological deficit per capita increased sharply from 0. 954 4 hm2 to 1. 922 0 hm2 , and the ec- ological capacity per capita increased only slightly. In contrast, the ecological tension index arose from 3. 257 6 to 4. 949 3, and the ecological footprint of ten thousand Yuan GDP decreased from 2. 252 1 hm2 to 1. 599 6 hm2. Especially, the ecological footprints and ecological deficits showed sharp growth since the reconstruc- tion after the 5 - 12 Wenchuan earthquake in 2008. With increasing consumptions of natural resources in Mianyang City, the conflicts between ecological footprint and ecological capacity were amplified suggesting an unsustainable state of the present developing model and poor harmony between socioeconomic development and ecological environment. In order to achieve the goals of eco-city construction plan and sustainable devel- opment strategy in Mianyang City, recommendations were made based on the analysis of this study, inclu- ding controlling the size of population, adjusting the structure of agricultural industry, protecting the re- sources of cultivated land, and optimizing life style and production mode of the people.

关 键 词：生态足迹 生态承载力 生态压力指数 可持续发展 

分 类 号：X171[环境科学与工程—环境科学] F062.2[经济管理—政治经济学]