Song Tao, Cai Jian-Ming, Ni Pan, Yang Zhen-Shan
Ying Yong Sheng Tai Xue Bao. 2014 Apr;25(4):1085-92.
By using emergy indices of urban metabolisms, this paper analyzed 31 Chinese urban metabolisms' systematic structures and characteristics in 2000 and 2010. The results showed that Chinese urban metabolisms were characterized as resource consumption and coastal external dependency. Non-renewable resource emergy accounted for a higher proportion of the total emergy in the inland cities' urban metabolisms. The emergy of imports and exports accounted for the vast majority of urban metabolic systems in metropolises and coastal cities such as Beijing and Shanghai, showing a significant externally-oriented metabolic characteristic. Based on that, the related policies were put forward: to develop the renewable resource and energy industry; to improve the non-renewable resource and energy utilization efficiencies; to optimize the import and export structure of services, cargo and fuel; and to establish the flexible management mechanism of urban metabolisms.
本文运用城市新陈代谢的能值指标，分析了2000年和2010年中国31个城市新陈代谢的系统结构与特征。结果表明，中国城市新陈代谢具有资源消耗和沿海外部依赖的特点。内陆城市新陈代谢中不可再生资源能值占总能值的比例较高。进出口能值在北京、上海等大都市和沿海城市的城市代谢系统中占绝大多数，呈现出显著的外向型代谢特征。在此基础上，提出了相关政策：发展可再生资源和能源产业；提高不可再生资源和能源利用效率；优化服务、货物和燃料的进出口结构；建立城市新陈代谢的灵活管理机制。
