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Monitoring urban green space (UGS) changes by using high resolution aerial imagery: a case study of Kuala Lumpur, Malaysia


Abu Kasim, Junainah and Mohd Yusof, Mohd Johari and Mohd Shafri, Helmi Zulhaidi (2019) Monitoring urban green space (UGS) changes by using high resolution aerial imagery: a case study of Kuala Lumpur, Malaysia. Pertanika Journal of Science & Technology, 27 (4). pp. 1971-1990. ISSN 0128-7680; ESSN: 2231-8526


Urban green space (UGS) in a city is the foundation of natural productivity in an urban structure. It is also known as a natural cooling device that plays a vital role in the city as an urban lung, discharging oxygen to reduce the city heat and as a wall against harmful air pollution. When urbanization happens, UGS, including the gazetted areas, is essentially converted into an artificial surface due to the population’s demand for new development. Therefore, identifying its significance is a must and beneficial to explore. The purpose of this study is to identify the 10 years of UGS change patterns and analyze the UGS loss, particularly in the affected gazetted zone. The study used available aerial imagery data for 2002, 2012, and 2017, and database record of green space. The study had classified UGS by using the Support Vector Machine (SVM) algorithm. The training area was determined by visual interpretation and aided by a land use planning map as reference. The result validity was then determined by kappa coefficient value and producer accuracy. Overall, the study showed that the city had lost its UGS by about 88% and the total gain in built up area was 114%. The loss in UGS size in the city could be compared to a total of 2,843 units of football fields, transformed forever in just 10 years. The uncontrolled development and lack of advanced monitoring mechanism had negatively affected the planning structure of green space in KL. The implementation of advance technology as a new mitigation tool to monitor green space loss in the city could provide a variety of enhanced information that could assist city planners and urban designers to defend decisions in protecting these valuable UGS.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Design and Architecture
Faculty of Engineering
Publisher: Universiti Putra Malaysia Press
Keywords: Gazetted areas; GIS; High resolution aerial imagery; Image segmentation; Land cover change; Urban green space (UGS)
Depositing User: Nabilah Mustapa
Date Deposited: 04 Feb 2020 03:51
Last Modified: 04 Feb 2020 03:51
URI: http://psasir.upm.edu.my/id/eprint/76337
Statistic Details: View Download Statistic

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