Global Journal of Science Frontier Research, H: Environment & Earth Science, Volume 22 Issue 5

1 Global Journal of Science Frontier Research Volume XXII Issue V Year 2022 33 ( H ) Version I © 2022 Global Journals Using Remote Sensing and GIS to Investigate the Effect of Urban Sprawl on Health Facilities in Egbeda Local Government Area, Ibadan, Oyo State, Nigeria 3. Determine the effect of urban sprawl on healthcare facility. II. T he S tudy A rea The study area is Egbeda Local Government Area of Oyo State. It is located on the Longitude 3 0 56’ 54.753” E and 4 0 8’ 58.585” E and Latitude 7 0 27’ 23.532” N and 7 0 18’ 34.578” N. The Local Government (Egbeda L.G.A.) shared boundary with Ona – Ara L.G., Lagelu L.G., Ibadan North East L.G. and Irewolede L.G. in the State of Osun (see Figure 1). Egbeda is one of the oldest communities in the accient city of Ibadan that originated from Awaye compound / village. The Awaye people was known to be worriors, farmer, and accommodating in nature. The population of Egbeda Local Government Area, according to 2006 population census reached the size of 283,643 (NPC,2006). In projected2016 census, it rose to 398,500. This growth has been more phenomenal since the creation of the Local Government Area. . The annual average temperatures range between 23.9 and 28.3 o C, and its mean annual relative humidity is about 77.1%. It is located within the tropical rain forest region of Nigeria where rainfall is high throughout the year. The area has an undulating terrain underlain by metamorphic rocks and characterized by two types of soils, deep brown clay soils and sandy soils. These soils have laudably supported the growing of cash crops such as cocoa, bread fruit, palms and cassava. Others common crops which are mostly, staple food include cocoyam, sugar cane, banana, plantain and vegetables. The topography of the area rises up to 500 meters and above the mean sea level in some places with the highest hill occurring in the northern part of the mapped area (Olatunji, 2022). Figure 1: Maps of Nigeria showing Oyo State and Egbeda Local Government Area III. D ata A cquisition and M ethod This study was interested in the urban land use and land cover change of Egbeda Local Government Area, Oyo state. The methods employed for data analysis include study area mapping, mapping from remotely sensed images of land use and land cover change, driving forces and future change/ development mapping using IDV analysis tool of geo-statistical interpolation. To achieve this, images of Egbeda Local Government Area, Oyo State were acquired for 1984, 2006 and 2018. The images are geometrically corrected and ground control point obtained through intensive ground surveys permitted the co-registration of all images to Universal Transverse Mercator (UTM). The Satellite imageries were made to pass through process of image enhancement, geo referencing, resampling, and image classification. A supervised classification with a Maximum Likelihood analysis was successful after creating five regions of interest with five training sites each. The map produced were: Land use/ cover 1984 from TM Landsat image, Land use/ cover 2006 from ETM+ Land sat image and Land cover 2018 from OLI Land sat image, based on built-up, cultivated land, bared land, natural vegetation and water body categories as regions of interest. Post classification was done using classified images for the purpose of confusion matrix, change detection and change statistics. Both classified and post classified images were converted to vector and exported to ArcMap 10.2