| 汪立秀,马礼.1997～2006年沽源县生态足迹动态变化分析[J].干旱地区农业研究,2009,27(6):236~240 |
| 1997～2006年沽源县生态足迹动态变化分析 |
| Dynamics of ecological footprint of Guyuan County from1997～2006 |
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| DOI：10.7606/j.issn.1000-7601.2009.06.45 |
| 中文关键词: 生态足迹 生态承载力 沽源县 |
| 英文关键词:ecological footprint ecological carrying capacity Guyuan County |
| 基金项目:国家自然科学基金资助项目(40671006) |
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| 中文摘要: |
| 对地处农牧交错带的河北省沽源县1997~2006年10 a的生态足迹进行了计算分析。纵向分析结果表明,研究时段内人均生态足迹由1997年的1.1841 hm2上升到2006年的2.1132 hm2,增长了78%;而人均生态承载力却由1.0721 hm2下降到0.6461 hm2,下降了40%。研究时段内该县历年为生态赤字,而且呈连年增长的趋势,至2006年人均生态赤字已经高达1.4671 hm2,耕地由1997年的0.5266 hm2生态盈余下降到2006年的0.6892 hm2的生态赤字,表明沽源县对生态系统是过度利用的,尤以耕地过度利用为最。 |
| 英文摘要: |
| As a method to measure the effect of environment,ecological footprint can estimate the development condition of a certain region.In this paper,we give an introduction to the concept of ecological footprint and computing model.Then we take Guyuan County as a case study and assess its nature utilization situation from 1997～2006 by using the ecological footprint theory.The results show that the ecological footprint of this region increased by 78% from 1.1841 hm2 to 2.1132 hm2,while the ecological carrying capacity decreased by 40% from 1.0721 hm2 to 0.6461 hm2 in the 10 years continually.This region has been in ecological deficit and it increased to 1.4671 hm2 by 2006.The farmland has changed from 0.5266 hm2 in ecological surplus to 0.6892 hm2 in ecological deficit.All of these indicate that this region is excessively utilized,especially the farmland.In the end this paper gives some suggestions to resolve these problems and summarizes the weak points of such a model. |
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