Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

Analysis on Comprehensive Response Degrees to Urbanization Level and Ecological Quality in Jiangxi Province

  • 1. Center for Central China Economic Development Research,Nanchang University,Nanchang 330047,China;
    2. School of Public Management,Huazhong University of Science and Technology,Wuhan 430074,China

Received date: 2007-10-08

  Revised date: 2007-11-29

  Online published: 2008-05-28


This paper analyzes the temporal response characteristics and total response intensity for ecological quality to urbanization level in Jiangxi province.Firstly,the paper designs the index system and appraisal model of comprehensive indexes of urbanization level and ecological quality with hierarchical synthetic method,and respectively calculates the indexes and their components.Next,the paper puts forward a comprehensive response degree model by means of elastic formula in the field of economy,which is expressed as cj=∑nt=11Tθj(t)(j=1,2,k;t=1,2,…n),and analyzes the comprehensive response degrees with the calculated comprehensive indexes of urbanization level and ecological quality.The calculated comprehensive indexes of urbanization level and ecological quality show:(1) The comprehensive urbanization level in Jiangxi province has increased gradually since the reform and opening to the outsides world.Two periods can be identified in the process,of which the former is a slower development stage during 1978-1990 and the latter a relatively rapid stage during 1991-2005.The present urbanization process in Jiangxi province has entered a rapid stage.(2) The comprehensive index of ecological quality and their components take on different curves.Among them,the index of ecological level and the index of ecological resistance ability are the same to the comprehensive indexes of ecological quality,which takes on an"U-shaped" curve,but the index of ecological pressure presents a periodic variation.The calculated comprehensive response degrees reveal:(1) The comprehensive response degrees and their components for ecological quality to urbanization level in Jiangxi province are generally higher than the entire inspection period and in 1991-2005,indicating that there is a much stronger sensitive intensity during 1978-1990 for ecological quality to urbanization process.Obviously,there doesn't exist a corresponding relationship between the urbanization process and the changing ecological quality,which concerns with not only the advancement pattern of urbanization itself,but also the way of eco-environment construction and protection;(2) The established comprehensive response degree model is easy to operate,and to the degree can promulgate the comprehensive response condition,but there are some limits to the application because its foundation is elastic formula in the field of economy,and the reflected response relations are only fitting tendencies for two variables in a certain period of time.Therefore,there exist not only the least samples but also the fitting accuracy for the model to be applied.

Cite this article

LIU Yao-bin . Analysis on Comprehensive Response Degrees to Urbanization Level and Ecological Quality in Jiangxi Province[J]. JOURNAL OF NATURAL RESOURCES, 2008 , 23(3) : 422 -429 . DOI: 10.11849/zrzyxb.2008.03.008


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