摘要
基于信息熵的分析方法,在前人的研究基础上,以武汉市2000～2010年城市生态系统发展为例,通过计算城市生态系统输入-输出熵流、代谢熵产生和系统总熵变,分析系统演化发展规律及原因;分别采用综合发展度和协调发展度评估城市的可持续发展水平,并将其进行指数化表征。分析结果表明:近11a内系统熵流和总熵总体是呈现振荡式下降趋势,而熵产生先升后降,武汉市总体不断向着健康、有序方向发展,但有序度不稳定;近年来协调发展度和综合发展度二者保持同时增长,说明武汉市城市生态系统不断向着可持续方向发展,但武汉市目前仍处于初级协调发展水平。
Based on information entropy and previous studies, taking Wuhan urban ecosystem（WUE） from 2000 to 2009 as an example, with the calculation of input-output entropy inflow, metabolism entropy production and total entropy in WUE, this paper analyzed the rule and reasons of dynamic evolvement in WUE, and then used the indexes of integrated development degree and harmony development degree to assess the level of sustainable development of WUE. The results indicates that the system entropy inflow and total entropy decreased with losing of time, but entropy production first increased and then decreased. This implies that urban health level improved continuously but unsteadily from 2000 to 2010. Both integrated development degree and harmony development degree increased in recent years, indicating that WUE was in the state of sustainable development,but still in the primary harmony development level.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2013年第1期21-26,共6页
Resources and Environment in the Yangtze Basin
基金
国家社会科学基金项目(08BZS047)
武汉市社会科学基金项目(08046)
中国科学院地理科学与资源研究所基金项目"扶贫空间信息系统关键技术及其应用"
关键词
城市生态系统
信息熵
发展度
协调度
武汉
urban ecosystem
shannon entropy
degree of development
degree of harmony
Wuhan city
