Intensity and spatial pattern of urban land changes in the megacities of Southeast Asia
Intensity and spatial pattern of urban land changes in the megacities of Southeast Asia
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DOI：
10.1016/j.landusepol.2015.05.017
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发表时间：
2015-11-01
期刊：
影响因子：
7.1
通讯作者：
Murayama, Yuji
中科院分区：
文献类型：
--
作者：
Estoque, Ronald C.;Murayama, Yuji
关于城市土地变化（ULC）的强度和空间格局的知识，即从非建设用地到建设用地的变化，对于许多问题都很重要，从理解人类与环境的相互作用和提供城市生态系统服务，到景观和城市规划的土地利用政策制定，以实现可持续城市化。在此背景下，本文旨在更好地了解东南亚两个大城市的城市化和景观变化的地理空间维度。具体来说，我们使用遥感和地理信息系统（GIS）工具和技术，检查并比较了1990-2000年和2000-2010年期间菲律宾马尼拉大都会区和泰国曼谷都市区（曼谷MR）的ULC的强度和空间格局。在ULC强度的测量中，提出了强度标度来确定在特定时间间隔（即1990-2000年或2000-2010年）期间ULC的速率相对于基于整个时间范围（即1990-2010年）的均匀强度是否是非常慢、慢、中慢/快、快和非常快。为了描述 ULC 的空间格局，应用了扩散合并城市增长理论的概念。结果显示，对于马尼拉大都会来说，其 ULC 在 1990 年代（快）比 2000 年代（慢）更加强烈。对于曼谷 MR 而言，2000 年代（中快）比 1990 年代（中慢）更加强烈。结果还显示，马尼拉大都会一直处于合并过程中，而曼谷 MR 很大程度上仍处于扩散和扩张过程中。在本文中，我们还讨论了影响 ULC 强度趋势和空间格局的一些可能因素、ULC 分析方法的优势以及两个特大城市的一些与土地利用政策相关的发展计划。 (C) 2015 Elsevier Ltd. 保留所有权利。
Knowledge about intensity and spatial pattern of urban land changes (ULCs), i.e., changes from non-built-up to built-up lands, is important to a wide range of issues, from understanding of human-environment interactions and provision of urban ecosystem services, to land use policy development for landscape and urban planning toward sustainable urbanization. In this context, this paper aims to provide better understanding of the geospatial dimensions of the urbanization and landscape changes in two megacities of Southeast Asia. Specifically, we examine and compare the intensities and spatial patterns of ULCs-in Metro Manila, Philippines and Bangkok Metropolitan Region (Bangkok MR), Thailand, during the 1990-2000 and 2000-2010 periods, using remote-sensing and Geographic Information System (GIS) tools and techniques. In the measurement of ULC intensity, an intensity scale is proposed to determine whether the rate of ULC during a particular time interval, i.e., 1990-2000 or 2000-2010, relative to the uniform intensity that is based on the whole time extent, i.e., 1990-2010, is very slow, slow, medium slow/fast, fast and very fast. To characterize the spatial patterns of ULCs, the concepts of the diffusion-coalescence urban growth theory were applied. The results revealed that for Metro Manila, its ULC was more intense during the 1990s (fast) than in the 2000s (slow). For Bangkok MR, it was more intense during the 2000s (medium fast) than during the 1990s (medium slow). The results also revealed that Metro Manila has been in the process of coalescence, while Bangkok MR is still largely in the process of diffusion and expansion. In this paper, we also discuss some of the possible factors influencing ULC intensity trends and spatial patterns, the advantages of the methods used for ULC analysis and some land use policy-related development plans for the two megacities. (C) 2015 Elsevier Ltd. All rights reserved.