| Dynamic analysis of ecological footprint of cultivated land in Gaotai's Towns |
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| DOI：10.7606/j.issn.1000-7601.2012.04.38 |
| Key Words: cultivated land ecological footprint ecological carrying capacity ecological deficit ecological overshoot index Gaotai County |
| Author Name | Affiliation | | CUI Lixiang | College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China | | CHEN Xingpeng | College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China | | XU Xinyu | College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China | | ZHANG Jin | College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China | | LI Hengji | College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China |
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| Abstract: |
| This paper presents the cultivated land ecological footprint in eight towns of Gaotai County during 2005—2010 through analyzing some statistical data of the area with the ecological footprint model. The result
s indicated that in the period the per-capita ecological footprint of the cultivated land of the eight towns fluctuated as well as the per-capita cultivated land ecological carrying capacity, with differences in various stages. Similarly, the ecological deficits of cultivated land of seven towns were in fluctuation. And six of the eight towns generally showed an increasing trend in the per-capita ecological carrying capacity of the cultivated land and those of others turned to be in decline, while the per-capita ecological footprint of all towns tended to be upward. The data of the ecological overshoot index of cultivated land of the eight towns were largely positive throughout the analyzed period, suggesting that they were all in the state of overload use and some parts of the towns appeared more severely. |
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