全球智库信息集成服务系统(G2TT): Spatial variation in the ecological relationships among the components of Beijing's carbon metabolic system.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.scitotenv.2015.11.110
	Spatial variation in the ecological relationships among the components of Beijing's carbon metabolic system.
	Xia L; Fath BD; Scharler UM; Zhang Y
发表日期	2016
出处	Science of the Total Environment 544: 103-113
出版年	2016
语种	英语
摘要	In this paper, we construct a spatially explicit model of carbon metabolism for the flows of carbon among the components of an urban area. We used the model to identify spatial heterogeneity in the ecological relationships within a carbon metabolic network. We combined land-use and cover type maps for Beijing from 1990 to 2010 with empirical coefficients and scioeconomic data to quantify the flows. We used utility analysis to determine the ecological relationships between the components of the system and analyzed their changes during urban development. We used ArcGIS to analyze their spatial variation. We found that the positive utilities in Beijing decreased over time and that negative relationships mostly outweighed positive relationships after 2000. The main ecological relationships were distributed throughout the entire urban area before 2000; subsequently, exploitation, control, and mutualism relationships became concentrated in the southeast, leaving competition relationships to dominate the northwest. Mutualism relationships were most common for natural components, but were not stable because they were easily disturbed by urban expansion. Transportation and industrial land and urban land were the most important contributors to exploitation and control relationships and may be important indicators of spatial adjustment. Increasing competition relationships unbalanced the carbon metabolism, and limitations on the area of land available for development and on the water resources led to increasingly serious competition. The results provide an objective basis for planning adjustments to Beijing's land-use patterns to improve its carbon metabolism and reduce carbon emission.
主题	Advanced Systems Analysis (ASA)
关键词	urban metabolism ecological relationships ecological network analysis spatial analysis land-use and cover change carbon emisssion
URL	http://pure.iiasa.ac.at/id/eprint/11711/
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/130732
推荐引用方式 GB/T 7714	Xia L,Fath BD,Scharler UM,et al. Spatial variation in the ecological relationships among the components of Beijing's carbon metabolic system.. 2016.