期刊
ECOLOGICAL INDICATORS
卷 85, 期 -, 页码 276-284出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecolind.2017.10.043
关键词
Efficiency of urban metabolism; Emergy; DEA of time series; Changsha
资金
- National Natural Science Foundation of China [51609268, 51521006]
- Science and Technology Planning Project of Hunan Province [2016SK2010, 2016SK2001]
Evaluating the efficiency of urban metabolism is an effective tool to quantitatively analyze the relationship between social, environmental and economic input and output in an urban ecosystem. In this paper, there are the combination Emergy synthesis, Principal Component Analysis (PCA) and Date Envelopment Analysis (DEA) of time-series approach to comprehensive assessment urban metabolism for the first time. DEA of time-series has the advantage of fully considering the technology changes every year, it can reflect clearly the overall situation of urban metabolism, including the use of various resources and the development of environmental sustainability cycle. The results show that, with the overall efficiency of metabolism ensured a generally steady rise in Changsha, the trend of urban environmental load rate is increased obviously, there is facing the huge pressure of ecosystem in Changsha. This paper suggests that government and enterprises should take measures to promote the construction of the eco industrial park, gradually realize industrial symbiosis, upgrade through the adjustment of energy structure and industrial structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据