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北京昌平区城镇化过程与空间特征研究
引用本文:张峰,张新时.北京昌平区城镇化过程与空间特征研究[J].应用生态学报,2005,16(6):1128-1132.
作者姓名:张峰  张新时
作者单位:中国科学院植物研究所植被数量生态学重点实验室,北京,100093
基金项目:国家重点基础研究发展规划资助项目(G2000018607).
摘    要:城市化作为一种巨大而又毫无计划的蔓延过程,强烈地影响着全球的大面积土地,而且产生了深刻的社会和生态效应,因此全面了解城市化的生态学效应的研究已成为国际城市生态学研究的前沿领域.基于昌平区1989、1996和2001年3期土地利用景观数据提取城镇用地信息,采用城镇扩展强度指数和景观格局指数对昌平平原区城镇化过程与空间特征进行了深入研究.结果表明,昌平平原区有3种主要的城镇化模式,即都市边缘带状城镇扩展模式、交通主轴线状城镇扩展模式和卫星城面状城镇扩展模式.昌平区城镇化过程主要集中在研究时段的前期(1989~1996年).都市边缘带状城镇扩展区内,前期以城镇斑块面积独立扩展和新的城镇斑块不断产生2种方式为主,而后期以城镇斑块面积的合并扩展为主;交通主轴线状城镇扩展区则为城镇斑块面积独立扩展、合并扩展,以及新城镇斑块的产生3种方式同步进行;最后,在卫星城面状城镇扩展区,前期以城镇用地的合并扩张为主,后期则表现为卫星城周边新的城镇用地不断涌现.城镇扩展强度指数和城镇景观格局指数结合使用,能较好地揭示昌平城镇化过程与空间特征.

关 键 词:城镇化  城镇扩展强度指数  景观格局指数  北京昌平区
文章编号:1001-9332(2005)06-1128-05
收稿时间:2004-07-20
修稿时间:2004年7月20日

Urbanization expanding process and its spatial characteristics in Changping District of Beijing,China
ZHANG Feng,ZHANG Xinshi.Urbanization expanding process and its spatial characteristics in Changping District of Beijing,China[J].Chinese Journal of Applied Ecology,2005,16(6):1128-1132.
Authors:ZHANG Feng  ZHANG Xinshi
Institution:Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China. zhangfeng@ibcas.ac.cn
Abstract:Urbanization is a massive and unplanned experiment that already affects large acreages worldwide,and has profound social and ecological consequences for both urban and rural residents.Therefore,to comprehensively quantify the urbanization process and to investigate its ecological consequences become the central issues in urban ecological studies.Combining urbanization expanding index with landscape metrics,this paper quantified the urbanization expanding process and the urbanization spatial characteristics in Changping District of Beijing.The results showed that there were three main urbanization models,i.e.,urban fringe belt-expending model,main transportation routes line-expending model,and satellite city panel-expending model.The urbanization expansion index showed that urbanization mainly took place during the period from 1989 to 1996,and the urban landscape metrics indicated that there were urban patches isolated expanding and new urban patches emerged from 1989 to 1996,mainly amalgamated expanding from 1996 to 2001 in urban fringe belt-expanding region.In transportation routes line-expanding region,the urban patches isolated expanding,amalgamated expanding and new urban patches emerging took place simultaneously,and mainly urban patches amalgamated expanding during the former period,and new urban patches constantly turning up around satellite city during the latter in satellite city panel-expanding region.This study showed that urbanization expansion integrating landscape metrics might reveal the urbanization expanding process and its spatial characteristics,and would be a good example for the application of landscape metrics.
Keywords:Urbanization  Urbanization expanding index  Landscape metrics  Changping District  
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