全球智库信息集成服务系统(G2TT): Analysis of urban carbon metabolic processes and a description of sectoral characteristics: A case study of Beijing.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.ecolmodel.2015.08.008
	Analysis of urban carbon metabolic processes and a description of sectoral characteristics: A case study of Beijing.
	Zhang Y; Li J; Fath BD; Zheng H; Xia L
发表日期	2015
出处	Ecological Modelling 316 (7651): 144-154
出版年	2015
语种	英语
摘要	Global climate change has aroused widespread interest in reducing carbon emissions and increasing carbon sequestration. Thus, an urban carbon inventory must consider both emissions and sequestration. In this context, we analyzed the main contributors to the flows that comprise a city's carbon metabolic processes employing methods and concepts from ecological science. The carbon emissions and sequestration by urban carbon metabolic processes can be compared to ecological catabolism and anabolism, respectively. We used empirical coefficients to estimate the rates of carbon catabolism and anabolism and calculate the resulting carbon imbalance index. Our analysis reveals the contributions of individual metabolic actors and the distribution of the metabolic flows among them. Taking Beijing as case study, we found that the catabolic rate of the metabolic actors was more than five times the anabolic rate from 1995 to 2010, leading to a carbon imbalance index that was twice the average Chinese level. The major catabolic actors were the other services and domestic sectors. These catabolic rates were primarily influenced by the flows of electricity, heating energy consumption, and mobile energy consumption. The overall carbon imbalance resulted from greatly reduced metabolic flows in farmland anabolism due to conversion of farmland into urban land. Identifying the metabolic actors and flows in this manner will inform government mitigation efforts by identifying where reduction is required and guiding planning of appropriate mitigation actions. Our study also provides directions for conservation of the urban ecological environment.
主题	Advanced Systems Analysis (ASA)
关键词	anabolism carbon accounting carbon imbalance catabolism technological metabolism urban metabolism
URL	http://pure.iiasa.ac.at/id/eprint/11382/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/130316
推荐引用方式 GB/T 7714	Zhang Y,Li J,Fath BD,et al. Analysis of urban carbon metabolic processes and a description of sectoral characteristics: A case study of Beijing.. 2015.