地理学报
地理學報
지이학보
ACTA GEOGRAPHICA SINICA
2015年
4期
539-550
,共12页
周国磊%李诚固%张婧%罗凤龙%申庆喜
週國磊%李誠固%張婧%囉鳳龍%申慶喜
주국뢰%리성고%장청%라봉룡%신경희
城市空间扩展%城市功能用地%演替%内部更替%外部扩展%长春
城市空間擴展%城市功能用地%縯替%內部更替%外部擴展%長春
성시공간확전%성시공능용지%연체%내부경체%외부확전%장춘
urban spatial expansion%urban functional land%transition%internal renewal%external expansion%Changchun
城市空间的增长不仅仅表现在城市用地的扩张，还表现在城市功能用地的演替。城市功能用地的演替可以更加深刻地揭示城市空间外延式水平扩展的内在特征，是城市功能集聚与扩散的空间反映。以长春市中心城区为例，利用2003、2007、2010、2012年4个年份的遥感影像图、地形图及城市用地现状图等数据资源，借助ArcGIS、AutoCAD等软件，运用GIS分析方法，在分析中心城区城市空间扩展的总体格局及城市用地结构变化的基础上，提出以外部扩展与内部更替来表达城市功能用地的演替，进而阐释城市空间扩展及城市功能集聚与扩散的内在特征，为城市空间扩展的研究提供一种新的、有效的手段，以丰富城市空间研究的理论成果体系。
城市空間的增長不僅僅錶現在城市用地的擴張，還錶現在城市功能用地的縯替。城市功能用地的縯替可以更加深刻地揭示城市空間外延式水平擴展的內在特徵，是城市功能集聚與擴散的空間反映。以長春市中心城區為例，利用2003、2007、2010、2012年4箇年份的遙感影像圖、地形圖及城市用地現狀圖等數據資源，藉助ArcGIS、AutoCAD等軟件，運用GIS分析方法，在分析中心城區城市空間擴展的總體格跼及城市用地結構變化的基礎上，提齣以外部擴展與內部更替來錶達城市功能用地的縯替，進而闡釋城市空間擴展及城市功能集聚與擴散的內在特徵，為城市空間擴展的研究提供一種新的、有效的手段，以豐富城市空間研究的理論成果體繫。
성시공간적증장불부부표현재성시용지적확장，환표현재성시공능용지적연체。성시공능용지적연체가이경가심각지게시성시공간외연식수평확전적내재특정，시성시공능집취여확산적공간반영。이장춘시중심성구위례，이용2003、2007、2010、2012년4개년빈적요감영상도、지형도급성시용지현상도등수거자원，차조ArcGIS、AutoCAD등연건，운용GIS분석방법，재분석중심성구성시공간확전적총체격국급성시용지결구변화적기출상，제출이외부확전여내부경체래표체성시공능용지적연체，진이천석성시공간확전급성시공능집취여확산적내재특정，위성시공간확전적연구제공일충신적、유효적수단，이봉부성시공간연구적이론성과체계。
The growth of urban space occurs not only through urban land expansion, but also from the transition of urban functional land. The transition of urban functional land can profoundly reveal the internal features of horizontal expansion of urban space, and is the spatial reflection of urban functional agglomeration and diffusion. The paper takes the central city of Changchun as a case study. ArcGIS, AutoCAD and GIS analysis methods are used in the article. Based on remote sensing images, topographic maps and land use maps covering the years of 2003, 2007, 2010 and 2012, the study analyzes the external expansion and internal renewal of urban functional land. First, the paper analyzes the overall pattern of urban spatial expansion and the change of urban land structure. Second, the external expansion and internal renewal of urban functional land are used to express the transition of urban functional land. Finally, the paper explalns the internal features of urban spatial expansion and urban functional agglomeration and diffusion. The goal of this work is to provide a new and effective way to study urban spatial expansion, enriching the theoretical foundation of urban space studies. The research reveals the following points: (1) Overall, a continuous urban sprawl is still the maln mode of urban spatial expansion. (2) The direction of urban spatial expansion of Changchun has phased characteristics. (3) Residential land and industrial land are the major urban functional land types in Changchun. (4) Examining three study periods reveals that external expansion and internal renewal occur in different time intervals. (5) Internal renewal and external expansion of urban functional land are important indicators of urban spatial expansion.
