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Physical and Environmental Geography

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Full-Text Articles in Social and Behavioral Sciences

Analysis Of Land Use Changes And Its Hydrological Implication On River Niger, Lokoja, Nigeria, O O. Ifatmehin Phd, P A. Essoka Phd, A Ahmed Dec 2012

Analysis Of Land Use Changes And Its Hydrological Implication On River Niger, Lokoja, Nigeria, O O. Ifatmehin Phd, P A. Essoka Phd, A Ahmed

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This study evaluates the impact of urbanization on Meme river catchment of 667,560.5Km2 area in the Lokoja urbanizing area of Kogi State. The emphasis was to examine the rate of urbanization, changes in land-use, and changes in meme river channel. Land-sat satellite imageries of 1987, 2001, 2006 and 2011 were processed to examine how land use change processes affects rate of urbanization and impacted on the stream. Hydrological map of Meme River was digitized using ARCGIS 9 software to extract the precise study area. It was discovered from multiple regression analysis that light vegetation (.92), built up area (.81), rock …


An Assessment Of Malaria Risk In Koton Karfe Watershed Catchment, Nigeria, Olarewaju Oluseyi Ifatimehin Mar 2009

An Assessment Of Malaria Risk In Koton Karfe Watershed Catchment, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This study adopts ground survey and questionnaire administration to determine environmental and socio-economic factors contributing to malaria risk in Koton Karfe watershed catchment. A health facilty-based survey is carried out to assess tbe ratio of population to health facility. The study reveals that poverty is the overriding risk factor determining the high malaria incidence rate which ranges from 40/1000 per annum to 288/1000 per annum across watershed catchment and prevelant among infants and school age children. The nearest neighbour index of 1.48 suggests the randomness in the spatial distribution of health facilities. The increase in the burden of malaria on …