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Assessment of green space requirement and site analysis in Colombo, Sri Lanka : a remote sensing and GIS approach

Show simple item record Senanayake, IP Welivitiya, WDDP Nadeeka, PM 2015-08-24T11:56:12Z 2015-08-24T11:56:12Z 2015-08-24
dc.identifier.issn 2229-5518 en_US
dc.description.abstract Green space distribution plays a vital role in urban planning since they contribute significantly in enhancing environmental quality of metropolitan areas by improving air quality, urban health, conserving biodiversity, reducing noise, etc. Migration of rural population into urban areas and widespread industrialization lead to the rapid growth of urban population, consequently expanding urban sprawls. Removal of vegetation cover can be identified as one of the most adverse effects of urbanization. Proper distribution of green spaces in urban environments is therefore a necessity for the sustainable development and healthy living. Hence, it is essential to identify the green space requirement quantitatively and spatially. In this endeavour, integration of remote sensing and GIS techniques can provide a time and cost effective methodology.Colombo city of Sri Lanka has been identified as one of the most polluted cities in South Asian region. Rapid urbanization and the population growth are the main causes for the degradation of environmental quality in Colombo. Unplanned constructions and settlements in Colombo have contributed to significant reduction of green spaces. Therefore, special consideration has to be made for the proper distribution of green spaces in future development and planning projects in Colombo. In this study, available green spaces in Colombo are extracted through NDVI method using THEOS satellite imagery. Subsequently, green spaces required to be created are calculated with respect to WHO standards of green spaces per capita for healthy living (9.5 m2/ person) and a methodology is developed to spatially define appropriate areas to establish them. en_US
dc.source.uri en_US
dc.subject Environmental quality en_US
dc.subject Green spaces en_US
dc.subject NDVI en_US
dc.subject Sustainable development en_US
dc.subject Urban planning en_US
dc.title Assessment of green space requirement and site analysis in Colombo, Sri Lanka : a remote sensing and GIS approach en_US
dc.identifier.year 2013 en_US
dc.identifier.journal International Journal of Scientific & Engineering Research en_US
dc.identifier.issue 12 en_US
dc.identifier.volume 4 en_US
dc.identifier.pgnos pp. 29-34 en_US

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