Type | Journal Article - American Journal of Social Issues and Humanities |
Title | Geospatial analysis of urban growth-The case of Akure, Nigeria |
Author(s) | |
Volume | 3 |
Issue | 4 |
Publication (Day/Month/Year) | 2013 |
Page numbers | 200-212 |
URL | http://ajsih.org/index.php/ajsih/article/download/100/100 |
Abstract | Accurate and up-to-date information describing the nature and extent of landuse changes over time is increasing, especially in rapidly growing in African cities. This paper illustrates the result of landuse/cover change in Akure using topographic map and multi temporal remotely sensed data from 1986 to 2009. The maximum likelihood supervised classification was carried out on reflective bands (4, 5 and7) for the three images individually with the aid of ground truth data. Ground truth collected during the field trips of conducted using topographic map of 1966 and landcover map of 1986were to assess the accuracy of the classification results. Post-classification detection techniques were used to produce change image through cross–tabulation. The analysis indicated the urban expansion of Akure showed that between 1986 and 2009 built up areas increased approximately 8,839ha (16.63%), light forest decreased 6753.15ha (12.70%). Gallery increased 11,119.07ha (20.92%), Dense forest increased 80.03ha (0.05%), Bare rock decreased 4029.47ha (2.33%) and Bareland increased 40,396.22 (ha) (23.036%) respectively. The study quantified the patterns of landuse/cover change for the last 23 years for Akure that forms valuable resources for city planners and policy makers to attain and sustain future urban development and environmental planning. |
» | Nigeria - Population and Housing Census 1991 |