张永彬;汲姣;郭力娜;张梦华;刘佳丽;曹应举;

• 1:华北理工大学矿业工程学院

摘要(Abstract)：

针对城市的外延式扩展过程中存在的问题,该文基于多时相遥感数据,采用监督分类法初分、决策树分类法再分的解译方法高精度地提取了唐山市中心建设用地,定量分析其在1978—2014年的时空扩展特征。研究发现,唐山市城市建设用地在研究期间呈外延扩张态势,市中心以高速填充—中速填充—快速填充—快速外延式扩展为主要特点;受地质条件影响,唐山市城市扩张方向为地质条件较好的西北方向;城市扩展过程中仍存在土地利用率不高的问题,城市空间紧凑度日趋离散,但内部联系理论上相对紧密。该研究对于了解城市空间扩展形态、方向和规律提供了方法和数据参考,可为优化城市发展布局提供一定数据支撑。

关键词(KeyWords)： 唐山市中心;建设用地;遥感解译;空间扩展

Abstract:

Keywords:

基金项目(Foundation): 河北省教育厅优秀青年基金项目(YQ2014016);; 国家自然科学基金项目(41671519,41271535);; 北京市科技计划课题(z161100001116016)

作者(Authors): 张永彬;汲姣;郭力娜;张梦华;刘佳丽;曹应举;

DOI: 10.16251/j.cnki.1009-2307.2019.07.010

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