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城市建筑景观的时空演变特征对城市改造与规划的合理调整有重要的指导作用。本文基于Barista软件、GIS、RS等技术,提取了建筑物的3D信息,并采用建筑占地面积比重、建筑平均高度、建筑密度、建筑形状指数与空间质心模型等指标,分析了沈阳市铁西区建筑景观的时空变化特征与影响因素。结果显示:从1997—2008年,居住与商业建筑占地面积比重增加,工业建筑占地面积比重下降,建筑形状越来越规则,建筑密度降低,建筑在垂直方向上扩展;3个时段内,建筑景观变化的质心先由居住区向工业区转移,再由城市中心向外围移动;经济发展、人口增长与建筑平均高度呈正相关,与建筑密度呈负相关。城市改造政策对城市建筑景观的变化有重要的影响。随着离道路距离的增加,建筑平均高度降低,建筑密度先增高后降低。
The spatial and temporal evolution of urban architectural landscape plays an important guiding role in the rational adjustment of urban renewal and planning. Based on Barista software, GIS, RS and other technologies, this paper extracts the 3D information of the building, and adopts the indicators of building floor area proportion, building average height, building density, building shape index and space centroid model, The Temporal and Spatial Variations and Influential Factors of District Architectural Landscape. The results showed that: from 1997 to 2008, the proportion of floor area of residential and commercial buildings increased, the proportion of floor area of industrial buildings decreased, the shape of buildings was more and more regular, the building density was reduced, and the building was expanded in the vertical direction. In three periods, The center of gravity of the architectural landscape changes from the residential area to the industrial area and then from the urban center to the periphery. The economic development, population growth and construction average height are positively correlated, and negatively correlated with the construction density. Urban renewal policy has important influence on the change of urban architecture landscape. As the distance from the road increases, the average height of buildings decreases, and the building density first increases and then decreases.