基于Barista的城市建筑景观动态变化——以沈阳市铁西区为例

Dynamic changes of urban architecture landscape based on Barista:A case study in Tiexi District of Shenyang City

基于Barista软件从高分辨率影像提取建筑物3D信息,结合ArcGIS软件,应用转移贡献率、建筑密度、建筑平均高度及建筑面积比例分析了沈阳市铁西区改造过程中建筑景观的动态变化.结果表明:随着城市改造的进行,空地、居住、工业建筑与道路4种优势景观类型是景观变化的主体,空地、居住、商业建筑和道路面积增加,工业建筑面积减少.建筑密度降低,平均高度升高.建筑景观的区域差异明显,工业区建筑密度高于居住区,建筑平均高度低于居住区.离城市中心距离越远,建筑密度越小,建筑平均高度越低.

In this paper,three-dimensional building information was extracted from high resolution satellite image based on Barista software. Combined with ArcGIS software,the dynamic changes of the building landscape in Tiexi District of Shenyang City during urban renewal process were analyzed from the conversion contribution rate,building density,average building height,and built-up area rate. It was found that during this urban renewal process,four dominant landscape types （ vacant lot,residential building,industrial building,and road） were the main parts of the landscape changes. The areas of vacant lot,residential building,commercial building,and road increased, while that of industrial building decreased. The building density decreased,while the average building height increased. There was an obvious regional variation in building landscape. The building density in industrial district was higher than that in residential district,while the average building height was in adverse. The further from the city center,the lower the building density and building average height.