区域土地利用变化的物质代谢响应  

Responses of metabolism during the process of land use change

作　　者：马其芳[1] 黄贤金[2] 

机构地区：[1]南京信息工程大学遥感学院,南京210044 [2]南京大学国土资源与旅游学系,南京210093

出　　处：《农业工程学报》2008年第S1期6-11,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：教育部新世纪优秀人才支持计划(NCET-05-0451);霍英东基金优选项目(94001)联合资助

摘　　要：一直以来,人类社会通过土地利用变化,不断改变着物质资源的配置方式,进而影响着区域物质输入/输出的规模以及种类。文章选取江苏省苏州市为研究区,分别采用物质流分析方法和典型相关分析方法,考察1996～2005年间,区域土地利用的数量、程度、结构等特征变化对区域内物质代谢过程的影响。研究结果表明:区域土地利用变化对物质代谢所发挥的作用存在正负差异性和时空差异性。研究期间区域物质代谢变化与土地利用变化历程的转折点极为吻合,均在2000年特征出现明显变化。物质代谢吞吐规模的增加与农业用地的大量减少和建设用地的迅速增加密切相关,其中,建设用地与土地利用结构变化对物质代谢输入端规模增加发挥着正作用,农用地变化对苏州市物质输出端规模增加发挥着负相关的作用。All the while,people change distributive modes for matter or resources by land use.Then,the changes work on the size and categories about input matter and output matter.Thus,taking Suzhou City in Jiangsu Province as a study area,the paper analyzed the responses of metabolism during the process of land use change from 1996 to 2005,by using material flow analysis and canonical correlation analysis.Quantity,degree,structure or intensity changes about land use in Suzhou City were pointed out.And the responses to regional metabolism on these changes of land use were pointed out respectively.The results indicated that in the research region,there was a close relationship between land use change and metabolism.Scale of metabolism in Suzhou City was relative to the decrease of agricultural land and the increase of construction land.During the process of land use change,there were positive and negative effects on metabolism.There into,changes of agricultural land were negative for increasing the scale of output matter.However,changes of construction land or land use structure were positive to enhance the scale of input matter.From 1996 to 2005,a same milestone appeared in 2000 during the process of land use change and metabolism change.After 2000,the changes’scopes about land use or metabolism were larger than before.So changes of land use put an obvious influence on regional metabolism after 2000.

关 键 词：土地利用变化 物质代谢 响应 

分 类 号：X705[环境科学与工程—环境工程]