城市土地利用变化的物质代谢效应研究  

Material metabolism effects of land use change

作　　者：王磊[1] 赖迪辉[1] 李慧明[2] 

机构地区：[1]天津城建大学经济与管理学院,天津300384 [2]南开大学循环经济研究中心,天津300071

出　　处：《干旱区资源与环境》2015年第10期14-19,共6页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金项目"区域物质减量的低碳响应测度机理研究"(编号:71303170);教育部人文社科青年基金项目"京津滨区域经济空间的分形结构及其优化机制研究"(编号:12YJCZH095);天津市科技发展战略研究科技计划项目(13LZLF06400);天津市高等学校人文社科项目"天津市低碳发展响应效果测度及路径优化选择研究"(编号:20132152)资助

摘　　要：人类在土地利用过程中改变着物质资源的配置方式,并不断影响着城市物质通量大小。从系统动态分析视角,将土地利用与城市物质流动相结合,将其嵌入到物质代谢分析的框架之内。选取天津市为研究区域,应用物质代谢综合分析和土地利用分析方法,建立物质流账户,研究土地利用的数量,程度,结构和强度特征对区域内物质代谢过程的影响。研究结果表明:天津市土地利用变化与区域物质代谢过程的转折点极为吻合;农业用地的大量减少和建设用地的迅速增加与物质代谢通量的增加密切相关。其中,建设用地数量与强度变化对天津市物质输入与输出端代谢规模的增加起着决定性作用,同时,土地利用程度变化、土地利用结构变化也是天津市物质输出端规模增加的主要因素。在此基础上提出对策建议,以期为土地可持续利用和城市绿色发展提供参考建议。Human changed the way of material resources allocation in the process of land use,and constantly affected the area size of substance throughput. From the perspective of dynamic system,combined the land use and regional substance flow,we analyzed the effects of number,degree,structure and intensity of land use to substance metabolism in Tianjin by the method of material metabolism analysis and land use analysis by establishing material flow account. The results showed that the turning points of land use change and regional metabolism process in Tianjin were extremely consistent. Reduction of a large amount of agricultural land and rapid increase of construction land were closely related with the increase of throughput scale of metabolism. The quantity and intensity change of construction land played an essential role in the process of increasing material input and output;at the same time,the changes of land use degree and land use structure were also the main factors to increase the material output. On this basis,the suggestions were proposed which can provide the reference for the sustainable land uses and urban green development.

关 键 词：物质代谢 土地利用变化 物质输入与输出 天津市 

分 类 号：F062.2[经济管理—政治经济学]