摘要
为了弄清汉源县的可持续发展现状,根据2003-2007年的统计资料,运用生态足迹模型对汉源县的生态足迹和生态承载力分别进行了分析。结果表明:(1)5a平均生态足迹为0.867hm2/人,年均增长率为3.48%;生态承载力变化不大,为0.311 2hm2/人;平均生态赤字0.513hm2/人,年均增长率为8.69%,处于一种相对不可持续的发展模式。(2)耕地和化石燃料用地占生态足迹的73.44%,说明当地主要通过消耗本地的自然资源来维持区域的发展;耕地供给对生态承载力贡献率为81.09%,供给类型比较单一。
To understand the status quo of the sustainable development in Hanyuan County,the dynamic analysis had been made separately on the ecological footprint and the bio-capacity of Hanyuan County by using mathematic models,which is based on statistics from 2003 to 2007.The results showed that： first,per capita of ecological footprint was 0.867 hm2 per person in five years,whose annual increase rate was 3.48%;the bio-capacity was 0.311 2 hm2 per person,which had not changed apparently;the average eco-deficit was 0.513 hm2 per person,whose annual increasing rate was 8.69%.The pattern was not sustainable according to data above;second,lands used for farming and fossil fuel had occupied 73.44% of ecological footprint,which revealed that the local development was primarily based on consuming natural resources;the sort of supplement was simple,which was mainly contributed by the support of farm lands,and the rate was 81.09% only.
出处
《水土保持研究》
CSCD
北大核心
2011年第5期39-42,共4页
Research of Soil and Water Conservation
基金
"十一五"国家科技支撑计划项目(2006BAC01A11)
四川省教育厅重点项目(07ZA059)
四川省科技厅应用基础项目(2008JY0022)
中国科学院山地灾害与地表过程重点实验室开放研究基金资助项目
四川省高等教育人才培养质量和教育改革项目(P09135)
关键词
生态足迹
生态承载力
动态分析
汉源县
ecological footprint
bio-capacity
dynamic analysis
Hanyuan County
