Acta Geographica Sinica ›› 2013, Vol. 68 ›› Issue (1): 45-57.doi: 10.11821/xb201301007

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Analysis of sustainable development ability of the urban ecosystem in Guangzhou City in the perspective of entropy

LIN Zhenming1,2, XIA Bin1,3   

  1. 1. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, China
  • Received:2012-09-10 Revised:2012-10-26 Online:2013-01-20 Published:2013-01-20
  • Supported by:

    Project funded by Bureau of Science and Information Technology of Guangzhou Municipal Government in 2011

Abstract: The research has been carried out in three steps. Firstly, the evaluation index system of sustainable development ability of the urban ecosystem was formed based on the structures and functions of the urban ecosystem and the entropy change of the urban socio-economic ecosystem. Secondly, the sustainable development ability assessment model for the urban ecosystem was built up based on information entropy. Lastly, through combining the time series variation of the evaluation indicators with the entropy weights, this paper analyzed its influence on the sustainable development ability of the urban ecosystem in Guangzhou, and then put forward some countermeasures to promote the urban ecosystem sustainable development in Guangzhou. The main conclusions of this study could be summarized as follows: (1) The urban ecosystem developed in an orderly and healthy direction with the effective control over the urban environmental pollution problems in Guangzhou between 2004 and 2010. Meanwhile the requirements of the socio-economic ecosystem on the natural ecosystem continuously grew with the rapid socio-economic development in the city. (2) On the whole, the sustainable development ability of the urban ecosystem had been on an upward trend in Guangzhou during the study period. What's more, the ability of the urban natural ecosystem to support the urban socio-economic ecosystem continuously showed an increasing trend and the improvement of ecological environment enhanced the harmony and vitality of the urban ecosystem in Guangzhou.

Key words: urban ecosystem, Guangzhou City, entropy change, information entropy, sustainable development