利用遥感技术估算科伦坡市城区10年来城市绿地覆盖变化

IF 1.6 Q3 URBAN STUDIES
Karunarathna Atapattu Mudiyanselage Ruwanmali Priyanwada Atapattu, E. A. N. M. Edirisinghe, S. Nissanka, T. Fernando, A. Gunawardena
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引用次数: 0

摘要

科伦坡是斯里兰卡的商业首都,人口众多,建筑和车辆众多。因此,观察科伦坡市植被类型的空间分布和绿色覆盖的变化,以确定改善绿色覆盖的优先区域至关重要。这项研究是为了利用遥感技术估计科伦坡市辖区及其邮政区10年来绿色覆盖的变化。绿色植被分为树木、灌木、游乐场(PG)/草地、湿地、屋顶和Ipomoea植被。因此,绿色总覆盖率从2012-2012年的22.36%上升到26.17%。在过去的十年里,除了PG/草地,所有其他植被类型都减少了。在过去10年中,CMA绿色覆盖的15个邮政区中有5个减少了,包括科伦坡04、05、06、09和13。最高的绿色覆盖率出现在科伦坡07,而最低的绿色覆盖度出现在科伦坡11。研究结果强调,即使建成区和城市人口不断扩大,CMA也在朝着绿化和可持续发展的方向发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Estimation of Urban Green Cover Changes in Colombo Municipal Area over Ten Years Using Remote Sensing Techniques
Colombo is the commercial capital of Sri Lanka, with a high population, buildings, and vehicles. Therefore, it is vital to observe the spatial distribution of vegetation types and changes in the green cover of Colombo city to identify priority areas to improve green cover. This study was carried out to estimate the changes in green cover in Colombo Municipal Area (CMA) and its postal zones over 10 years using remote sensing techniques. The green cover was categorized into trees, shrubs, Playgrounds (PG)/Grasslands, wetlands, rooftops, and Ipomoea cover. Accordingly, total green cover increased up to 26.17% from 22.36% during the period of 2012–2022. During the past decade, except for the PG/Grasslands, all other vegetation types have been reduced. Five of the 15 postal zones in the CMA’s green cover have decreased during the past 10 years, including Colombo 04, 05, 06, 09, and 13. The highest green cover was recorded in Colombo 07, while the lowest green cover was present in Colombo 11. The outcome of the study emphasizes that CMA is moving towards greening and sustainability even with the expansion of built-up areas and urban populations.
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CiteScore
1.90
自引率
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发文量
24
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