Original Article

Spatial and Temporal Changes in the Urban Green Spaces and Land Surface Temperature in the Chittagong City Corporation of Bangladesh Between 2000 and 2020


Institute of Forestry & Environmental Sciences, University of Chittagong, Chittagong, Bangladesh


Department of Geography and Environmental Studies, University of Chittagong, Chittagong, Bangladesh

FORESTIST 2023; 73: 171-182
DOI: 10.5152/forestist.2022.22013
Read: 485 Downloads: 196 Published: 01 May 2023

Urban green spaces provide environmental ameliorates by reducing air pollution, mitigating urban heat island effects, and cooling urban areas. The present study aimed to assess the urban green spaces along with the Normalized Difference Vegetation Index and land surface temperature of 41 wards of Chittagong City Corporation in Bangladesh between 2000 and 2020. The study revealed a dramatic increase in the urban green coverage in the Chittagong City Corporation areas during 20 years of time-lapse. The total urban green space increased by 58.09%, from 4488.85 ha in 2000 to 7096.42 ha in 2020. Thus, per-capita green coverage increased from 0.003 ha to 0.004 ha. The time series analysis shows that the annual mean value of Normalized Difference Vegetation Index increased to 0.46 in 2020 from 0.44 in 2000, which indicates a rise in green areas in the Chittagong City Corporation. The time series analysis also shows a gradual increase in the annual mean temperature from 2000 through 2020. During this time frame, the annual mean temperature in 2000 was 29.46°C, while it was 30.41°C in 2020. The study findings will help urban planners build this city sustainably, considering the concept of a healthy and eco-friendly city.

Cite this article as: Miah, M. D., Hasnat, G. N. T., Nath, B., Saeem, M. G. U. & Rahman, M. M. (2023). Spatial and temporal changes in the urban green spaces and land surface temperature in the Chittagong city corporation of Bangladesh between 2000 and 2020. Forestist, 73(2), 171-182.

EISSN 2602-4039