African Journal of Estate and Property Management ISSN 9671-8498 Vol. 7 (4), pp. 001-005, April, 2020. © International Scholars Journals
Full Length Research Paper
An evaluation of the effect of land use/cover change on the surface temperature of Lokoja town, Nigeria
Ifatimehin Olarewaju Oluseyi1*, Ujoh Fanan2 and Magaji J. Y.2
1Department of Geography and Planning, Kogi State University, Anyigba, Nigeria.
2Department of Geography, University of Abuja, Abuja, Nigeria.
Accepted 11 January, 2020
This research integrated remote sensing and Geographic Information Systems (GIS) to identified land use/cover types in Lokoja, including their temporal transformation and association with surface temperatures from the LandSat TM and LandSat ETM imageries of 1987 and 2001 respectively. As the built-up area increased in size (2667.6%) so was the surface temperature (6.48oC), vacant land (872%: 9.65oC), cultivated land (104.4%: 1.2oC) and water bodies (64.3%:0.94oC) while vegetation cover increased by 2.44oC while its area extent decreased (316.7%). These changes were responsible for the rise in the mean surface temperature from 38.39oC in 1987 to 42.61oC in 2001, indicating a 4.22oC increase in 14 years. The study revealed a direct relationship between the changing pattern among the various landuse/cover types and the variations in the surface temperatures of these landuse/cover types within the study period. If the rate of decline in vegetation covers is not checked, Lokoja may witness continuous increase in its radiant surface temperature as the cooling effect of vegetation cover is lost to impervious surfaces that litter the urban landscape. Therefore, policies that will help to provide more vegetation cover should be adopted to curb the effect of urban heat island on the environment and health of the residents.
Key words: GIS, land Sat, landuse/cover, remote sensing, temperature, thermal.