| Dynamics of ecological footprint of Guyuan County from1997～2006 |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2009.06.45 |
| Key Words: ecological footprint ecological carrying capacity Guyuan County |
|
| Hits: 289 |
| Download times: 322 |
| Abstract: |
| 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. |