Dynamics of the ecological footprint and ecological capacity of Qingyang, Gansu

Abstract

Abstract: The ecological footprint (EF) and ecological capacity (EC) of Qingyang from 2001 to 2005 were calculated, and the historical change pattern and causes of EF and EC during this period were analyzed. A forecast model for sustainable development trends of Qingyang was developed. The average personal EF gradually increased from 1.12 to 1.34 hm² from 2001 to 2005, whereas the average personal EC declined from 1.13 to 1.11 hm², thus the EF and EC in Qingyang developed in opposite directions. In 2001 there was an ecological surplus of 0.02 hm², but in 2002 it became a deficit which rose to 0.23 hm² in 2005. Over the same period, the EF per ten thousand yuan GDP decreased, while the ecological occupation rate increased, indicating that the biologically productive area, the resource utilization rates, and the ecological pressure were all increasing. The model forecasts that in 2010, the average personal EF and EC would be 1.33 and 1.03 hm² respectively, and the average personal ecological deficit would reach 0.30 hm². Overall, the results indicate that the ecological environment in Qingyang is not safe and that the present development model is not sustainable.

CLC Number:

S181

ZHANG Zhi-quan, YU Ai-zhong, LUO Zhu-zhu, CHEN Nian-lai, HUANG Gao-bao. Dynamics of the ecological footprint and ecological capacity of Qingyang, Gansu[J]. Acta Prataculturae Sinica, 2010, 19(4): 187-193.

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