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基于生态热力学的城市代谢系统生态经济评价——以北京市为例

发表时间:2015-12-31  浏览量:2106  下载量:825
全部作者: 刘耕源,刘心宇
作者单位: 北京师范大学环境学院,环境模拟与污染控制国家重点实验室
摘 要: 模拟生物有机体,在剖析城市代谢内涵与过程特征的基础上,运用生态热力学的方法,以北京市为例,从时间轴的动态演替角度动态评价北京市城市生态系统多年演变趋势,核算了北京市城市代谢系统中各种物质流、能量流、货币流。结果表明:从1999年至2006年,北京市能值流量、强度均显著增加,城市代谢主要依赖于外部购买的不可更新资源的消耗;外部购买的不可更新资源主要依赖于国内其他省份的资源供给,说明北京是一个本国资源依赖型的城市,而且这种依赖程度在不断增长。
关 键 词: 环境规划;城市代谢;能值;北京市
Title: Ecological and economic evaluation of urban metabolism system based on ecological thermodynamics: a case study of Beijing
Author: LIU Gengyuan, LIU Xinyu
Organization: State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University
Abstract: This paper proposed a framework for urban metabolism process simulation from anabolic, catabolic and regulating metabolic processes after simulating biological organisms and analyzing the connotation and characteristics of urban metabolism. In addition, the material, energy and currency flows in the urban metabolism system were accounted and the socio-economic as well as environmental conditions in Beijing were assessed from the biophysical perspective. The results shows that: from 1999 to 2006, the energy flow and intensity in Beijing are increasing dramatically and the urban metabolism is highly dependent on the nonrenewable resources purchased from outside. The nonrenewable resources bought from outside is mainly from other provinces, which shows Beijing is increasingly dependent on the resources in China.
Key words: environmental project; urban metabolism; energy; Beijing
发表期数: 2015年12月第24期
引用格式: 刘耕源,刘心宇. 基于生态热力学的城市代谢系统生态经济评价——以北京市为例[J]. 中国科技论文在线精品论文,2015,8(24):2578-2586.
 
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