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JOURNAL OF DESERT RESEARCH  2012, Vol. 32 Issue (6): 1794-1802    DOI:
Ecology and Economics     
Quantitative Analysis of the Dynamic Relationship Between Urbanization Level and Eco-environment Quantity in Xinjiang, China
WANG Chang-jian1,2, ZHANG Xiao-lei1, DU Hong-ru1, WANG Fei1,2
1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
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Abstract  

There are complex relationships between urbanization and eco-environments in different regions and at different phases. This paper explores their interaction process during 1978-2009 in Xinjiang, China. We describe the comprehensive indexes of urbanization level and eco-environment quality by the Entropy Method, demonstrate causal relationships between comprehensive indexes of urbanization level and eco-environment quality with the co-integration test and Granger causality test, and analyze the dynamic process during 1978-2009 with impulse-response function and variance decomposition model. Results show that the urbanization level in Xinjiang had been gradually increasing since 1978 with economic growth and non-agriculture landscape expansion as its main features, but the comprehensive index of eco-environment quality and its components exhibited different change trends. There was a Granger causality relationship between the urbanization level and the eco-environment quality. The comprehensive index of urbanization level was Granger cause of eco-environment state index and eco-environment response index. With the increase of the urbanization level, the comprehensive index of eco-environment quality and the eco-environment response index decreased at first and then increased. Over the study period, the response of urbanization level to eco-environment quality presented a low and steady level, and the current energy resource utilization efficiency and the environment protection investment level didn't play an effective role in improving eco-environment quality. From a long-term, the explanatory power of urbanization level on eco-environment quality is gradually improved, but we should have a rational view of the eco-environment construction practices promoted by urbanization development.

Key words:  urbanization      eco-environment      quantitative analysis      Xinjiang     
Received:  13 June 2012      Published:  07 August 2012
ZTFLH:  K928.5  

Cite this article: 

WANG Chang-jian1,2, ZHANG Xiao-lei1, DU Hong-ru1, WANG Fei1,2. Quantitative Analysis of the Dynamic Relationship Between Urbanization Level and Eco-environment Quantity in Xinjiang, China. JOURNAL OF DESERT RESEARCH, 2012, 32(6): 1794-1802.

URL: 

http://www.desert.ac.cn/EN/     OR     http://www.desert.ac.cn/EN/Y2012/V32/I6/1794

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