An approach to evaluation of sustainability for Guangzhou's urban ecosystem

SUMMARY Guangzhou has ambitions to build itself into a world class metropolis by 2010. Sustainable development is the only way to achieve this magnificent goal. Based on the ecological perspective of sustainable development and the principles of ecosystem integrity, this paper develops an approach for evaluation of sustainable development in Guangzhou between 1986 and 1995. A hierarchical evaluation system of four tiers of sustainability indicators was established. Using the method of fuzzy multistage synthetic evaluation, sustainability development level index, QIx, was calculated for the indicators at the B, C, D, and E tiers. Development stages were identified based on these index values. The coordination degree among the economic, social, and natural subsystems was also computed. Further, an overall sustainability index for each year was computed by combining the development level index and the coordination degree. It was found that the urban ecosystem in Guangzhou had generally become more sustainable, in spite of fluctuations in coordination degree. The development level index of the economic subsystem has surpassed that of social and natural subsystems since 1995. Appropriate measures must be taken to ensure coordinated development among the subsystems for the purpose of sustainable development.

[1]  R. Forman,et al.  Changing Landscapes: An Ecological Perspective , 2011, Springer New York.

[2]  S. Bell,et al.  Sustainability Indicators: Measuring the Immeasurable? , 1999 .

[3]  Qihao Weng.  A remote sensing?GIS evaluation of urban expansion and its impact on surface temperature in the Zhujiang Delta, China , 2001 .

[4]  Qihao Weng.  Local Impacts of the Post‐Mao Development Strategy: The Case of the Zhujiang Delta, Southern China , 1998 .

[5]  C. Lo.  Recent Spatial Restructuring in Zhujiang Delta, South China: A Study of Socialist Regional Development Strategy , 1989 .

[6]  Qihao Weng,et al.  Modeling Urban Growth Effects on Surface Runoff with the Integration of Remote Sensing and GIS , 2001, Environmental management.

[7]  Ago Yeh,et al.  Urban growth management in the Pearl river delta: An integrated remote sensing and GIS approach , 1996 .

[8]  Li Si-ming,et al.  China's open door policy and urbanization in the Pearl River Delta region , 1990 .

[9]  A. Yeh,et al.  Economic Development and Agricultural Land Loss in the Pearl River Delta , 1997 .

[10]  A. Yeh,et al.  An integrated remote sensing and GIS approach in the monitoring and evaluation of rapid urban growth for sustainable development in the Pearl River Delta, China , 1997 .

[11]  G. Lin.  Red capitalism in South China , 1997 .

[12]  N. Schaller.  Mainstreaming low-input agriculture. , 1990 .

[13]  A. Yeh,et al.  Economic Development and Agricultural Land Loss in the Pearl River Delta, China , 1999 .

[14]  Qihao Weng,et al.  Spatial Analysis of Urban Growth Impacts on Vegetative Greenness with Landsat TM Data , 2001 .