Spatiotemporal urban expansion in Pune metropolis, India using remote sensing
Spatiotemporal urban expansion in Pune metropolis, India using remote sensing
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DOI：
10.1016/j.habitatint.2015.10.007
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发表时间：
2016-02-01
影响因子：
6.8
通讯作者：
Schneider, Karl
中科院分区：
文献类型：
--
作者：
Kantakumar, Lakshmi N.;Kumar, Shamita;Schneider, Karl
印度城市正以前所未有的速度扩张。发展速度对城市规划者提出了挑战，因为城市的扩张速度往往超过规划进程。这给城市规划者带来了进一步的挑战，即㈠规划数据库往往过时，㈡未适当考虑无计划城市增长的过程和模式。本文提出了一种方法来解决这些挑战，利用普遍可用的和廉价的遥感数据研究i）土地利用和土地覆盖变化和ii）通过分析城市地区的范围来研究城市增长的模式和过程。我们使用多时相Landsat数据集评估了三年（1992年，2001年，2013年）的土地利用/土地覆盖。详细的时空分析的城市扩展和城市增长的类型学在单个行政单位的规模。使用不同的城市扩张指标对城市增长的动态进行了量化。浦那大都会确定了三种类型的城市扩展模式，一）主要城市地区的城市化融合阶段，二）郊区的扩散阶段和三）营地的边际增长。因此，浦那大都会城市扩展的整个过程可以被称为扩散-聚合模式。此外，我们的研究结果表明，浦那大都会地区的城市扩张速度从2001年到2013年翻了一番，与1992-2001年相比。城市土地的增加是以草地、荒地和农田为代价的。在半城市和乡村理事会管辖下的郊区，变化的百分比很高，而在总增长方面，市政府管辖下的地区是城市扩张的最大贡献者之一。与研究地区的民政管理单位相比，营地委员会管理的行政单位略有增加。(C)2015爱思唯尔有限公司版权所有。
Indian cities are expanding at an unprecedented rate. The speed of development poses a challenge for urban planners, as the expansion of cities frequently outpaces the planning process. This leads to further challenges for urban planners, namely i) the database for the planning is often outdated and ii) processes and patterns of unplanned urban growth are not accounted for appropriately. This paper presents an approach to address these challenges by utilizing generally available and inexpensive remote sensing data to study i) the land use and land cover change and ii) by analyzing the extent of urban areas to study the patterns and processes of urban growth. We assesses land-use/land-cover for three years (1992, 2001, 2013) using multi-temporal Landsat datasets. A detailed spatiotemporal analysis of urban expansion and typologies of urban growth at the scale of individual administrative units. The dynamics of urban growth was quantified using different metrics of urban expansion. Three types of urban expansion patterns were identified in the Pune metropolis, i) coalescence phase of urbanization in the main city areas, ii) diffusion phase in the suburbs and iii) marginal growth in the cantonments. The overall process of urban expansion in the Pune metropolis can thus be referred to as a diffusion coalescence pattern. Furthermore, our results show that the speed of the urban expansion in the Pune metropolis area has doubled from 2001 to 2013 as compared to 1992-2001. Urban land has increased at the cost of grasslands, barren and agricultural lands. The percentage of change is high in the suburbs under semi-urban and village council jurisdictions, whereas in terms of total growth, areas under the municipal corporation jurisdictions are among the highest contributors to urban expansion. Administrative units governed by cantonment boards have shown marginal growth as compared to the civil administrative units in the study area. (C) 2015 Elsevier Ltd. All rights reserved.