ASSESSMENT OF LAND COVER CHANGE AND ITS IMPACT ON AGRICULTURAL LAND USE IN IKPOBA-OKHA LGA, EDO STATE, NIGERIA
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Abstract
Land Cover Change poses a significant challenge to agricultural land use, food security, and environmental sustainability. In Ikpoba-Okha LGA, Edo State, rapid urbanisation, population growth, and industrial expansion have resulted in large-scale conversion of agricultural land into residential, commercial, and industrial uses. This study assesses the rate, drivers of land cover changes, the land use changes across the study area over 30 years (1993–2023), its impacts on agricultural land use, and the mitigation strategies adopted by household heads. The study employed a mixed-method approach, integrating Remote Sensing and Geographic Information Systems (GIS) for spatial analysis, alongside questionnaires and focus group discussions. A purposive sampling technique was used to select household heads from ten communities across Ikpoba-Okha. Data analysis involved descriptive statistics, including percentages, presented through tables, charts, and maps. Results revealed that between 1993 and 2023, agricultural land decreased by 27.58%, while built-up areas increased by 33.45%, indicating significant urban encroachment. The most notable increase in built-up land occurred between 2013 and 2023, rising by 25.62%, whereas bare surfaces declined by 10.39% in the same period, suggesting land conversion. Water bodies showed minor but consistent growth (+0.16% overall). The sharpest decline in agricultural land (-21.93%) was observed between 1993 and 2003. The findings indicate that Land cover change has significantly reduced agricultural land, exacerbating land-use conflicts, food insecurity, and environmental degradation in Ikpoba-Okha. The study recommends stronger zoning regulations, financial support for farmers, and improved infrastructure to balance urban growth with agricultural sustainability.
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