基于建设用地变化的城市边缘区提取方法与扩张模式研究——以哈尔滨市为例

发布时间：2018-09-05 16:43

【摘要】：利用Landsat TM数据获取2000和2015年哈尔滨市建设用地矢量数据,构建了一种更为简单可行的城市边缘区空间提取模型,界定了城市核心区、内缘区和外缘区的边界,探讨了城市边缘区的空间变化过程和扩张模式。结果表明:基于建设用地变化构建的城市边缘区提取方法——"滑动切割"模型,通过设定提取阈值,获取城市核心区、内缘区和外缘区的边界是可行的;近15年来,哈尔滨城市边缘区已从二环和四环之间延伸到哈尔滨绕城高速公路外围,城市边缘区建设用地集中化与破碎化并存;根据边缘区建设用地破碎化程度,城市边缘区扩张模式包括"外延式、跳跃式和稳定式"三种,基本形成了"东张西建",多种扩张模式并存的城市扩张格局;在交通设施、政策导向和社会经济等因素的共同推动下,基本形成了"南工北农"的城市区域空间特征。
[Abstract]:By using Landsat TM data to obtain the vector data of Harbin construction land in 2000 and 2015, a more simple and feasible spatial extraction model of urban fringe is constructed, and the boundaries of urban core area, inner edge area and outer edge area are defined. The spatial change process and expansion mode of urban fringe are discussed. The results show that the "sliding cutting" model, a method of urban edge extraction based on the change of construction land, is feasible to obtain the boundary of urban core area, inner edge region and outer edge area by setting the extraction threshold. The urban fringe area of Harbin has extended from the second and fourth rings to the periphery of Harbin roundabout expressway, and the construction land in the urban fringe area co-exists with the fragmentation, according to the degree of fragmentation of the construction land in the edge area, The expansion mode of urban fringe area includes three types of "extension type, jump type and stable type", which basically forms the urban expansion pattern of "East Zhang west construction" and coexistence of various expansion modes; in traffic facilities, With the combination of policy guidance and social and economic factors, the urban spatial characteristics of "North and South Agriculture" are basically formed.
【作者单位】：东北农业大学资源与环境学院;东华大学理学院;
【基金】：国家自然科学基金项目(41101153) 黑龙江省自然科学基金项目(G201134) 东北农业大学土地资源管理学科团队资助项目
【分类号】：F301.2

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