Abstract
Geo-spatial assessment of land use/cover dynamics in Akoko South West Local Government was instigated to bridge the knowledge gap created by data deficiency on the nature, scope and magnitude of land use/cover change in the area. This was done through the analysis of Landsat images of three epochs from 2000 through 2010 to 2020. The processing of the satellite images was done in ArcGIS 10.8 while the analysis and 2030 projection was done in Microsoft office excel using the result from the analysis. QGIS was used to remove the scan lines error on the 2010 image. The result showed increasing built-up area, reducing vegetation and farmlands and diminishing rock outcrops. The changes vary among the different classification characteristics. The increasing change in the second epoch was higher in built up areas while rock outcrops increased in the first epoch. Farmland and vegetation were on reducing trend throughout the study period. However, the moderate change observed in the second epoch for the two land cover classes were not as significant as the first epoch. Government policies on forest reserve should strictly be adhered to in order to preserve the vegetation in the area. People of the area should be advised to diversify their economy in order to avoid total dependence on the forest reserve.
Highlights
Land uses are the different types of activities that are carried out on land by anthropogenic activities while land cover is defined by the biophysical attributes of land that have an effect on ecosystem process [1]
FAO [2] sum up the whole gamut about land use and land cover as any delineable area of the earth's terrestrial surface, involving all attributes of the biosphere above or below this surface, including those of the near-surface climate, the soil and terrain forms, the surface hydrology, near-surface layers and associated ground water and geo-hydrological reserve, the plant and animal populations, the human settlement pattern and physical results of past and present human activity
The study aims to produce the land use land cover map of Akoko South West Local Government area at different epochs to evaluate the changes and predict the future land use/landcover change in the area. This was pursued through the following objectives: To produce the land use/land cover map of the study area
Summary
Land uses are the different types of activities that are carried out on land by anthropogenic activities while land cover is defined by the biophysical attributes of land (natural vegetation, water bodies, rock/soil, sand and wastelands) that have an effect on ecosystem process [1]. FAO [2] defined Land Cover (LC) as the “observed (bio) physical cover of the earth’s surface”, and is a synthesis of the many processes taking place on the land. It reflects land occupation (and its transformation) by various natural, modified or artificial systems and to some extent how these systems affect the land. LC is one of the most detectable indicators of human intervention on land Because it can change quickly over time, it is a good proxy for dynamics of the earth surface resulting from a variety of drivers and factors
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