MORPHOLOGICAL RESPONSE OF GINZO RIVER TO URBANIZATION IN KATSINA METROPOLIS, NIGERIA

Kayode Ademola, Iroye ; Aminu, K. (2016-12)

Article

Ginzo channel like any other small urban streams is predominated by urban induced problems, hence the examination in this study, the extent of urbanization effect on morphological changes of the river channel in Katsina city. For the investigation, bank-full , parameters of the study river were measured through direct fieldwork exercise while the river :, plan/arm parameters and degree of urbanization in.each of the three segments of the river , channel were, computed from satellite imagery of Katsina metropolis (2014) down loaded from glcf.umd.edu/data/Landsat 2014-04with Katsina NE. Topographical map on scale 1:50,000 serving as a base map. Descriptive and inferential statistics were subsequently used in analyzing the data collected. The study revealed that bankful and planform parameters of the study river were generally lower at the upstream segment when compared with downstream segments. A significant relationship was observed between degree of urbanization. and channel cross-sectional area while the result also indicate a general reduction in stream sinuosity index with degree of urbanization. Towards sustainable management of the study river, a number of recommendations were put forward. Amongst such include the use of bio-engineering approach in the river management, a review and enforcement of environment laws to control channel encroachment and relocation of houses erected close to the river channel.

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