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- Title
Dynamic analysis of ecological footprint of Dongying City based on a modified model.
- Authors
Yang Hai-Bo; Wang Zong-Min; Zhao Hong-Ling; Li Ji-Ren
- Abstract
Taking the spatiotemporal heterogeneity of water-heat condition into consideration, the traditional ecological footprint (EF) model was modified with net primary productivity (NPP). In the meanwhile, water resource EF was calculated to complement the deficiency of water EF account which only included water's fishing function. The EF dynamics of Dongying City from 1996 to 2003 was analyzed by using the modified model. Based on traditional model, the EF of Dongying City in 1996-2003 increased from 1.766 hm2 to 2.644 hm², and the ecological capacity (EC) decreased from 0.889 hm² to 0.813 hm²; while based on the modified model, the EF increased from 2.819 hm² to 3.776 hm², and the EC decreased from 1.935 hm² to 1.865 hm². Comparing with that from traditional model, the ecological pressure calculated by the modified model was lesser, which suggested that to increase the utilization of water resource would alleviate the ecological pressure on the region. The modified EF model was more precise to reflect the natural resource utilization of Dongying City.
- Subjects
DONGYING Shi (China); CHINA; ECOLOGICAL heterogeneity; LABOR productivity; WATER supply; ECOLOGICAL carrying capacity; POWER resources; PRIMARY productivity (Biology); FACTORS of production
- Publication
Yingyong Shengtai Xuebao, 2009, Vol 20, Issue 7, p1753
- ISSN
1001-9332
- Publication type
Article