Spatio-Temporal Evaluation of Urban Growth of Zuru Metropolis, Nigeria

Maleeks Y. A.1,*, Aliyu A. O.2, Bala A.2, Isiaka A. U. 3 and Atta K. Z.2

1 Agricultural and Bio-Environmental Engineering Technology, College of Agriculture Zuru, Kebbi State, Nigeria
2 Department of Geomatics, Ahmadu Bello University – Zaria, Kaduna State, Nigeria
3 Department of Surveying and Geinformatics, Waziri Umaru Federal Polytechnics, Birnin Kebbi, Nigeria

*Corresponding Author: zmaleeks@gmail.com

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 Vol. 5 No. 2  | October 2021 | Pages 456 – 467 |   Cite this article

https://doi.org/10.36263/nijest.2021.02.0293

Abstract

ABSTRACT

The pattern of development in a city is mostly governed by urban dynamics, with population increase being the primary driving force. Built-up cover is the most important predictor of urban expansion. Zuru metropolis in Kebbi State has witnessed remarkable developmental activities caused by human influences such as buildings, road constructions, and population growth for over decades. Urban growth was ascertained for a period of 30 years through the analysis of Landsat imagery of 1988, 1998, 2008 and 2018. The datasets were classified into five (5) land covers, namely, built-up, water body, rocky surface, vegetation, and others. Quantitative assessment of the urban growth was ascertained by computing post-classification LC dynamics and Land Consumption Rate/Land Absorption Coefficient (LCR/LAC). The results showed that the built-up cover (urban area) conspicuously increased with area of 693.35 ha, 728.74 ha, 5210.5 ha and 6845.75 ha respectively for the period of study (1988 – 2018). The increment in built-up area was indicative of population growth from 1988 to 2018. The study revealed that between 1988 to 2018 showed that built-up increased by 11.78%, while rocky surface and water body have shrunk by 16.44% and 0.02% respectively, which can be attributed to anthropogenic activities in which rocky surface and waterbody have been transformed into built-up cover. It further revealed that the urban area experienced crowdedness in the years 2008 and 2018 respectively due to high LCR values of 2.71% compared to LCR values of 0.0714% and 0.0558% in 1988 and 1998. Land transformation into urban area and spread of the population to the outskirts of the study area was prominent between 1998 and 2008 due to high LAC value of 0.0998. The study concluded that there was transformation of rocky surface and waterbody into urban area, which was caused by population growth, human and agricultural activities in Zuru metropolis.

Keywords: Built-up, Change detection, Land Absorption Coefficient, Land Coefficient Ratio, Urban growth

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Maleeks Y. A., Aliyu A. O., Bala A., Isiaka A. U. and Atta K. Z. 2021. Spatio-Temporal Evaluation of Urban Growth of Zuru Metropolis, Nigeria. Nigerian Journal of Environmental Sciences and Technology, 5(2), pp. 456-467. https://doi.org/10.36263/nijest.2021.02.0293


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