Factors And Rate Of Gully Erosion In Gombe Town, Gombe State, Nigeria
Keywords:
Gully, erosion, soil properties, Rainfall, Topograhy and Gombe townAbstract
The development of gullies is one of the severe environmental problems in Gombe town. It has threatens urban infrastructure, properties, lives and the physical growth of the town. Knowing the rates of gully development in the last decade helped explain the reasons for current land degradation. This work therefore aimed at assessing gully erosion in Gombe town. Data were derived from field measurements, satellite imageries, and laboratory analysis. Results from the interpretation of Spot 5(1999) and Quick Birds (2009) imageries and field measurements showed that gully variables (length, depth and widths) have significantly increased in the last 10 years. Laboratory analysis of soil particles revealed that the soils are dominated by sand. The values of Atterberg limits (liquid limits; plasticity limit and the plasticity index (PI), shear strength (cohesion and angle of internal friction) and bulk density values were low, soil chemical properties also showed that the soils are moderately acidic, contained low organic matter, and low exchangeable cations, with serious implication on biological methods of erosion control.
References
Ayuba, H. K. (1992). Effects of Continues Cultivation on the Soil and Vegetation in Konduga L. G. A of Borno State. Unpublished M.Sc Dissertation.
Balzerek H., Werner F., Jürgen H., Klaus-martin M. and Markus R. (2003). Man Made Flood Disaster in the Savanna Town of Gombe/NE Nigeria. In Erdkunde 94-109
Capra A., Porto A. and Sciocolone B. (2009). Relationship Between Rainfall Characteristics and Ephemeral Gully Erosion in a Cultivated Catchment in Sicily. www.elsevier.com/locate/ still. Retrieved on 23/2/10
Ebisemiju, F. S. (1989) A morphometric approach to gully analysis. Geomorphologies, 33 (3), 307-322
Ibitoye, M. and Eludoyin, A. (2010). Urban Growth and Development of Soil erosion in part of Humid of Southwest Nigeria. FIG Congress 2010, Facing the Challenges - Building the Capacity Sydney, Australia, 11 - 16th April 2010
Iorkua, S. A. (2006). A study of inter- relationships among gully elements in North Bank Makurdi. Journal of Geography and Development, 1 (1), 32-49
Jeje, L. K. and Agu, A. N. (1990). Run-off from Bounded Plots in Alakowe in South Western Nigeria. Applied Geography, 10, 63-74.
Mills, A. J. and Fey, M. V. (2003). Declining soil quality in South Africa: effects of land use on soil organic matter and surface crusting. South African Journal of Science, 99, 429- 436.
Nyanganji, J. K. (1997). Some Basic Observations on Rainfall and Runoff related Factors on an Artificial Catchment in Maiduguri, NE Nigeria. In: Daura (ed) Issues in Environmental Monitoring in Nigeria, 152-165, Maiduguri
Obaje N. G., Abaa S. I., Najime T. and Suh C. E. (1999). Economic geology of Nigerian Coals Resources: A Brief Review. African Geoscience Review, 6, 71-82
Obiefuna G.. I., A. Nur A. U. Baba and Bassey N. E. (1999). Geological and Geotechnical Assessment of selected Gully Sites, Yola area, Northeast Nigeria. Journal of Environmental Hydrology, 7
Obiefuna G. I., Oreagbune I. M. O. and David C. (2010). Geotechnical Evaluation of Soils in Numan and its Environs, Northeast Nigeria.
Continental Journal Earth Sciences, 5 (1), 20 - 31 Wilolud Journals, 2010 http://www.wiloludjournal.com: Retrieved March, 2011.
Olofin, E. A. (1992). The Dynamics of Gully Head Recession in a Savanna Environment. Erosion, Transport and Deposition Processes (Proceedings of Jerusalem Workshop), IAHS, NO. 189
Ologe, K. O. (1987). Soil erosion characteristics, processes and extent in the Nigerian savanna. In V. O. Sagua, E. E. Enabor, G. E. K. Ofomata, K. O. Ologe and L. Oyebande (eds) Ecological Disasters in Nigeria. Soil Erosion, 26-49
Orazulike, D. M. (1987). Hazardous Earth Processes in parts of Bauchi State, Nigeria: Their Causes and Environmental Implications. Natural Hazard, 1, 155-160
Orazulike, D. M. (1992). A Study of Gully Phenomenon in Gombe Town, Bauchi State: Bedrock Geology and Environmental Implications (200-201). Netherlands: Kluwer Academic Publisher.
Rahab, N. O. (2008). Effects of Soil Physical Properties on Gully Morphology in Zaria, Northern Nigeria. A paper presented at the 48th Annual Conference of Association of Nigerian Geographers, held at the Department of Geography, University of Calabar, October 2008
