Landscape Architecture, Vol. 1, Issue 1, Jun  2018, Pages 1-13; DOI: 10.31058/ 10.31058/

The Impact of Urban Expansion on Agricultural Land and Crop Output in Ankpa, Kogi State, Nigeria

Landscape Architecture, Vol. 1, Issue 1, Jun  2018, Pages 1-13.

DOI: 10.31058/

Tokula A.E 1* , Ejaro S.P. 2

1 Department of Geography and Environmental Studies, Faculty of Social Sciences, Kogi State University, Anyigba, Kogi State, Nigeria

2 Department of Geography and Environmental Management, Faculty of Social Sciences, University of Abuja, Abuja, Nigeria

Received: 22 December 2017; Accepted: 4 January 2018; Published: 12 January 2018

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Urban expansion is a human induced phenomenon with inherent effects on the environment. The aim of this study was to examine agricultural land loss and its effect on crop yield in the study area. Two methods of data collection were applied in this research. The first was geospatial technology used to obtain Land use/Land cover and to check the rate of urban expansion. The land-sat image of Ankpa was acquired for three different years of 1987, 2001 and 2016 with the aid of Idrisi Andes land use change modeler and Arc GIS 9.3 used to generate the statistics to show change over the period of 29 years of study. The second data was on crop yield obtained from Kogi Agricultural Development Project. The study revealed that land use and land cover of the study area had undergone considerable changes over the period examined. Built-up areas had expanded significantly during the twenty-nine years period under review. Agricultural lands, vegetation and bare surface declined due to the growths in population and physical developments. The trend analysis of farmland from 1995 to 2016 showed a decreasing pattern. The study therefore recommended the need for government to control urban development from spreading to agriculture land as this would have serious repercussion on food production.


Urban Expansion, Agricultural Lands, Crops Yield, Ankpa


© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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