Accessing on the sustainability of urban ecological-economic systems by means of a coupled emergy and system dynamics model: A case study of Beijing

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• 作者：Wei Fang^a ; ^b ; ^c ; Haizhong An^a ; ^b ; ^c ; ^{ahz369@163.com} ; Huajiao Li^a ; ^b ; ^c ; Xiangyun Gao^a ; ^b ; ^c ; Xiaoqi Sun^a ; ^b ; ^c ; Weiqiong Zhong^a ; ^b ; ^c
• 关键词：Emergy flows ; Urban ecological-economic systems ; System dynamics ; Environmental preservation
• 刊名：Energy Policy
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：100
• 期：Complete
• 页码：326-337
• 全文大小：1754 K
• 卷排序：100

文摘

A Systems Dynamics model simulating urban emergy flows is set up. Current economic development of Beijing depends on high consumption of resources. Beijing has extreme and increasing dependence on external resources. Beijing relies heavily on nonrenewable resources and its development is unsustainable. Low GDP growth is better than high GDP growth with increased environmental investment.