Studies on the characteristics of urban villages have attracted much interest in urban geography.However,how to advance the development of further theoretical analysis and quantitative methodologies,especially in the ...Studies on the characteristics of urban villages have attracted much interest in urban geography.However,how to advance the development of further theoretical analysis and quantitative methodologies,especially in the era that GIS and digital-urban technologies develop rapidly and provide precious resources on spatial issues,has always been a heated debate and difficulty.In this paper,a mathematical model based on spatial analysis is introduced to deal with the categorization and characterization of urban villages.A total of 89 urban villages in the Shenzhen Special Economic Zone(SEZ)are used in this case study.Using ArcGIS tools on buffer analysis,distance and density calculation,and socio-economic and spatial attributes conjunction,urban villages’31 spatial variables in 4 aspects—social,economic,locational,and physical—are extracted,and 6 principal factors are concluded by principal components analysis to indicate the spatial characteristic of urban villages.Based on the 6 principal factors,6 types of urban villages,including rapidly sprawling,large,rapidly industrializing periphery,overcrowded,intensively mobile and economically backward,are divided through the Hierarchical Clustering method.Moreover,the spatial features and formation mechanisms of each type of urban villages are provided.Finally,the advantages and the shortcomings of the methodology for this specific application are also given.Furthermore,several guidelines on urban village management and renewal are provided based on the result of type classification.The outcome of the paper depends on the informational and technological support from the development of digital-city management,and is able to in turn provide basis on monitoring and improving urban villages which can further digital urban framework.展开更多
Studies on the renovation and governance of urban villages have become the interest of human geography since the 1990s.However up to now,there is little literature focusing on the development patterns and dynamic mech...Studies on the renovation and governance of urban villages have become the interest of human geography since the 1990s.However up to now,there is little literature focusing on the development patterns and dynamic mechanism of the spatial evolution of urban villages based on the theoretical system of urban spatial structure,and there are few scholars doing analyses on the relationship between urban villages and general urban areas in terms of spatial development.In this paper,Shenzhen,the most representative city of China in terms of urban village development,is taken as a case for exploring the characteristics and modes of the spatial evolution of urban villages.With census data of urban village construction in 1999 and 2004 in terms of built-up area,floor area,and construction intensity,the spatial and temporal evolution of the 91 administrative urban villages in the original Shenzhen Special Economic Zone have been analyzed in comparison with that of Shenzhen's general urban areas.It is indicated that the spatial evolution of urban villages matches with the general rules of the spatial development of general urban areas in three aspects.First,land expansion is the most remarkable mode of spatial evolution in the early stage of development;second,in the period of rapid development,there is the obvious tendency of "distance-decay" in terms of construction intensity accompanied by some anomalous fluctuations at certain points;third,renewal and redevelopment are carried out gradually in the mature stage of development.However,because of historical and institutional restrictions,the spatial evolution of urban villages shows its unique characteristics in the aspects of original spatial distribution and spatial expansion mode in the period of rapid development,etc.The outcomes of this study would help not only enrich the theoretical study on the evolution mode of urban spatial structure,but also strengthen the administration over urban villages,in particular with the suggestions that the spatial evolution of urban villages as a type of urban space should not be the same as that of general urban areas and its unique characteristics should not be ignored;specific rules should be set up to guide the rational spatial evolution of urban villages according to the economic development of the city,as well as the housing demands of various kinds of residents.展开更多
SPECIAL economic zones are a result of China’s economic reform and opening to the outside world, where preferential and flexible economic policies exist that aren’t the same as the policies in China’s interior. Mir...SPECIAL economic zones are a result of China’s economic reform and opening to the outside world, where preferential and flexible economic policies exist that aren’t the same as the policies in China’s interior. Miracles are accomplished展开更多
在深圳市特区一体化背景下,运用主成分分析法测算城市综合影响力指数。考虑了道路类型及地形阻抗,在GIS软件支持下,利用Huff模型,进行基于时间可达性的深圳经济特区城市腹地划分及演变分析,并提出了相应的城市空间发展策略。结果表明,...在深圳市特区一体化背景下,运用主成分分析法测算城市综合影响力指数。考虑了道路类型及地形阻抗,在GIS软件支持下,利用Huff模型,进行基于时间可达性的深圳经济特区城市腹地划分及演变分析,并提出了相应的城市空间发展策略。结果表明,场强最大等值线与10 min OD时间成本等值线基本重合;城市腹地与行政区域不存在显著的空间相关性;城市综合影响力的绝对优势及交通环境的改善,使得大鹏新区大部分区域成为罗湖区在深圳东海岸的腹地孤岛;特区一体化背景对深圳市中心区城市腹地变化影响显著,原特区的罗湖、福田和南山的城市腹地已形成相对稳定态势,但随着特区一体化推进,原特区外的宝安和龙岗两区逐步削弱了南山区、盐田区、罗湖区的腹地范围。展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.40901080,40830747)the Post-doctor ResearchFoundation of China(Grant No.20080440237)
文摘Studies on the characteristics of urban villages have attracted much interest in urban geography.However,how to advance the development of further theoretical analysis and quantitative methodologies,especially in the era that GIS and digital-urban technologies develop rapidly and provide precious resources on spatial issues,has always been a heated debate and difficulty.In this paper,a mathematical model based on spatial analysis is introduced to deal with the categorization and characterization of urban villages.A total of 89 urban villages in the Shenzhen Special Economic Zone(SEZ)are used in this case study.Using ArcGIS tools on buffer analysis,distance and density calculation,and socio-economic and spatial attributes conjunction,urban villages’31 spatial variables in 4 aspects—social,economic,locational,and physical—are extracted,and 6 principal factors are concluded by principal components analysis to indicate the spatial characteristic of urban villages.Based on the 6 principal factors,6 types of urban villages,including rapidly sprawling,large,rapidly industrializing periphery,overcrowded,intensively mobile and economically backward,are divided through the Hierarchical Clustering method.Moreover,the spatial features and formation mechanisms of each type of urban villages are provided.Finally,the advantages and the shortcomings of the methodology for this specific application are also given.Furthermore,several guidelines on urban village management and renewal are provided based on the result of type classification.The outcome of the paper depends on the informational and technological support from the development of digital-city management,and is able to in turn provide basis on monitoring and improving urban villages which can further digital urban framework.
基金sponsored by the National Natural Science Foundation for Distinguished Young Scholars(40901080)the Postdoc Science Foundation of China(200804400237)the Social Science Project of Shenzhen in the11th Five-year Plan(105C020)
文摘Studies on the renovation and governance of urban villages have become the interest of human geography since the 1990s.However up to now,there is little literature focusing on the development patterns and dynamic mechanism of the spatial evolution of urban villages based on the theoretical system of urban spatial structure,and there are few scholars doing analyses on the relationship between urban villages and general urban areas in terms of spatial development.In this paper,Shenzhen,the most representative city of China in terms of urban village development,is taken as a case for exploring the characteristics and modes of the spatial evolution of urban villages.With census data of urban village construction in 1999 and 2004 in terms of built-up area,floor area,and construction intensity,the spatial and temporal evolution of the 91 administrative urban villages in the original Shenzhen Special Economic Zone have been analyzed in comparison with that of Shenzhen's general urban areas.It is indicated that the spatial evolution of urban villages matches with the general rules of the spatial development of general urban areas in three aspects.First,land expansion is the most remarkable mode of spatial evolution in the early stage of development;second,in the period of rapid development,there is the obvious tendency of "distance-decay" in terms of construction intensity accompanied by some anomalous fluctuations at certain points;third,renewal and redevelopment are carried out gradually in the mature stage of development.However,because of historical and institutional restrictions,the spatial evolution of urban villages shows its unique characteristics in the aspects of original spatial distribution and spatial expansion mode in the period of rapid development,etc.The outcomes of this study would help not only enrich the theoretical study on the evolution mode of urban spatial structure,but also strengthen the administration over urban villages,in particular with the suggestions that the spatial evolution of urban villages as a type of urban space should not be the same as that of general urban areas and its unique characteristics should not be ignored;specific rules should be set up to guide the rational spatial evolution of urban villages according to the economic development of the city,as well as the housing demands of various kinds of residents.
文摘SPECIAL economic zones are a result of China’s economic reform and opening to the outside world, where preferential and flexible economic policies exist that aren’t the same as the policies in China’s interior. Miracles are accomplished
文摘在深圳市特区一体化背景下,运用主成分分析法测算城市综合影响力指数。考虑了道路类型及地形阻抗,在GIS软件支持下,利用Huff模型,进行基于时间可达性的深圳经济特区城市腹地划分及演变分析,并提出了相应的城市空间发展策略。结果表明,场强最大等值线与10 min OD时间成本等值线基本重合;城市腹地与行政区域不存在显著的空间相关性;城市综合影响力的绝对优势及交通环境的改善,使得大鹏新区大部分区域成为罗湖区在深圳东海岸的腹地孤岛;特区一体化背景对深圳市中心区城市腹地变化影响显著,原特区的罗湖、福田和南山的城市腹地已形成相对稳定态势,但随着特区一体化推进,原特区外的宝安和龙岗两区逐步削弱了南山区、盐田区、罗湖区的腹地范围。
