LANDUSE/LANDCOVER OF ISEYIN LOCAL GOVERNMENT AREA, OYO STATE USING GIS AND REMOTELY SENSED SATELLITE IMAGERY
Adebayo, A.1, Isiaka U. A1, Akande, A. A., and Mohammed B. N1
ABSTRACT
Human activity interacts with the natural environment, particularly the land, which includes plants, rocks, water features, and bare ground. Each of these influences human growth and decision-making in one way or another. The Iseyin Local Government Area has seen remarkable development, growth, and construction of roads, buildings, deforestation, and many other human endeavors. As a result, there has been a gradual increase in land occupation as well as modifications and changes to the status of land use and land cover without a comprehensive assessment of these movements. Thus, the emphasis is on land use change detection. The land cover of Oyo State, Nigeria’s Iseyin Local Government Area, Landsat 8 OLI, Landsat 7 ETM+ 2000, Landsat 7 ETM+ 2010 2020, and Landsat 8 OLI 2023 imagery covering the area of interest between 2000 and 2023 were obtained. QGIS, Arc GIS 10.8.1, and TerrSet 2020 software were employed to process and analyze the results. The results obtained show some changes in land use and land cover classes within the period 2000–2023. The built-up area experienced a low increment of 724 ha, representing 0.42%, due to the migration of people from town to settlement, the conversion of the hamlet to agricultural purposes, and the activities of bandits. An increase in bare ground of 27377 ha, representing 15.88%, was observed; water was recorded to be dynamic; this is attributed to natural dry-up resulting in suitable sites for appropriate road construction and urban development purposes; rock was recorded as the prime victim, with 52099 ha, representing 30.23%. However, vegetation and agricultural land increased and decreased due to anthropogenic activities on rock; these changes implied that there was rapid urban development within a twenty-three-year period.
Keywords: Built-up, Change Detection, Land Absorption Coefficient, Land Use, Land Cover, Urban Growth
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