Version 1
: Received: 29 December 2016 / Approved: 29 December 2016 / Online: 29 December 2016 (16:04:18 CET)
How to cite:
Li, L.; Pussella, P. Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka. Preprints2016, 2016120144. https://doi.org/10.20944/preprints201612.0144.v1
Li, L.; Pussella, P. Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka. Preprints 2016, 2016120144. https://doi.org/10.20944/preprints201612.0144.v1
Li, L.; Pussella, P. Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka. Preprints2016, 2016120144. https://doi.org/10.20944/preprints201612.0144.v1
APA Style
Li, L., & Pussella, P. (2016). Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka. Preprints. https://doi.org/10.20944/preprints201612.0144.v1
Chicago/Turabian Style
Li, L. and Pgrni Pussella. 2016 "Temporal Changes of Per Capita Green Space of Colombo District, Sri Lanka" Preprints. https://doi.org/10.20944/preprints201612.0144.v1
Abstract
Green spaces take part a vital role in reducing the harmful effects occurred through the process of rapid urbanization. This study focuses on evaluating the change of green space and per capita green space in Colombo District, Sri Lanka in between 2008 and 2015 using Landsat images. The NDVI differencing method and classification method were used to detect the change of land cover. According to the results, a gradual decline of green space from 629.1km2 to 591.16km2 with a rate of 6.03% can be depicted. The change is considerable in Kaduwela, Moratuwa and Maharagama DSDs and quite better in the areas such as Avissawella, Homagama and Padukka. The per capita green space has been decreased from 272.361 m2 to 248.811 m2. Though these rates are very well higher than the UN, EU and WHO standards for the district, Colombo DSD do not comply with UN and EU standards. The case would turn into worst in 2025, as the predictions with current rates. Therefore, the study recommends taking immediate actions to make a greener city. Further, a tax system is proposed to get the attraction of the general public.
Keywords
Green Space; NDVI; Per Capita; Urbanization
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
