Analysis of Urban Land cover Growth and Projection in Ondo State: A Case Study of Akure South Metropolis
1Tata H. & 2Sarkin Zango I.
1Department of Surveying and Geoinformatics, Federal University of Technology Akure, 2Department of Surveying and Geoinformatics, ModibboAdama University of Technology Yola, Email: herbertvella@yahoo.com; sarkinzango@gmail.com
ABSTRACT
Analysis of urban land cover growth and projection were carried out using medium resolution multi-temporal images (Landsat MSS1986, TM2000 and ETM2015). Spatial data were collected over a period of time to visualize the extent of urban growth and projection. Handheld GPS Map 76CSX was used for the collection of coordinate for ground truthing. The images were processed using Arc GIS 10.2.1 and land cover maps for each study year are presented. The result of the analysis in table 5 shows that urban area steadily increased from 4.8% in 1986 to 9.5% in 2000 and 17.3% in 2015 while vegetation (including forests and scrubs) decreased in an uncontrolled manner from 79.4% in 1986 to 60.5% in 2000 and 51.7% in 2015. The analysis of result used for projected Land Cover map shows that from 1986 to 2030the urban area would have increased to approximately 8,422.11 hectares from 5688.290 hectares with a percentage increase of 8.52%. Furthermore, 18.38% decrease in forest area was predicted to occur while the scrubs and grassland were predicted to increase by 2.15% and 9.73% respectively. The study therefore recommended that analysis of urban land cover growth and projection should be carried out to progressively study the rate and pattern of grow thin an urban area.
Keyword: Land use, Land cover growth, Projection, Landsat, GIS, GPS
