Monitoring Urban Green Space (UGS) changes by using high resolution aerial imagery: A case study of Kuala Lumpur Malaysia

Mohd Johari Mohd Yusof, . and Junainah Abu Kasim, . and Helmi Zulhaidi Mohd Shafri, . Monitoring Urban Green Space (UGS) changes by using high resolution aerial imagery: A case study of Kuala Lumpur Malaysia. pp. 1971-1990. ISSN 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 populations 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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Abstract

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 populations 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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Item Type:	Article
AGROVOC Term:	Urban areas
AGROVOC Term:	Air pollution
AGROVOC Term:	Satellite imagery
AGROVOC Term:	GIS
AGROVOC Term:	Data analysis
AGROVOC Term:	Sampling
AGROVOC Term:	Experimentation
AGROVOC Term:	Planning (urban)
AGROVOC Term:	Environmental monitoring
AGROVOC Term:	Land use
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/9394

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