Olayemi Soladoye, Olusegun Adepoju, Chioma Angela Emefienem


It has been observed in the literature that the conversion of wetlands to other uses has grave consequences on the natural ecosystem in general and on water resources in particular. Despite detrimental impacts observed globally, the encroachment trend has not been abated neither are there deliberate measures in place to control it. This study was carried out to assess the changes that have occurred in the wetlands of Ojo LGA from 1986 to 2016. The area was selected for study because of the rapid rate of urbanization witnessed in the area in the past two decades.  Data was obtained using topographical maps and satellite imageries in mapping the extent of encroachment on the wetland area. The Area Analysis method was used to show the trend and rate of land use changes over the period. The results show that there is a marked decline in the areal extent of wetlands. Urban development is however increasing rapidly. The need for further research is also evident.


wetland, urban development, water resources, encroachment, land use

Full Text:



Adelekan, I.O. (2009). Vulnerability of Poor urban coastal communities to climate change in Lagos, Nigeria. Paper presented at the Fifth Urban Research Symposium, Marseille, France, and June 28-30, 2009.

Agboola, T. and Agunbiade, E. M., (2007). Urbanization, Slum Development and Security Of Tenure: The Challenges of Meeting Millennium Development Goals (MDG) 7 In Metropolitan Lagos, Nigeria, Paper presented to the PRIPODE workshop on Urban Population, Development and Environment Dynamics in Developing Countries, Nairobi, 11-13 June 2007.

Bakare. H.O.; Oke M.O.; Bankole, M.O. and Komolafe, B.O. (2011):“Spatio-Temporal Analysis of Wetland Ecology of Ijebu-Ode, South West Nigeria”. Proceedings of Environmental Management Conference, Federal University of Agriculture Abeokuta, Nigeria.

Braimoh, A. and Onishi, T. (2007). Spatial Determinants of Urban Land Use Change in Lagos, Nigeria, Land Use Policy, 24: 502-515

Chang, H. (2004). Water Quality Impacts of Climate and Land Use Changes in Southeastern Pennsylvania. The Professional Geographer, 56(2): 240-257.

Cowardin, L.M., Carter, Virginia, Golet, F.C., and LaRoe, E.T., (1979). Classification of wetlands and deepwater habitats of the United States: U.S. Fish and Wildlife Service Report FWS/OBS-79/31, 131 p.

Darnell, R.M. (1976). Impacts of Construction Activities in Wetlands of the United States. EPA‐600/3‐76‐045. U.S. Environmental Protection Agency, Environmental Research Laboratory, Corvallis, OR

Efe, S.T. (2001): An Appraisal of the Quality of Rain and Groundwater Resources in Nigerian Cities: The case of Warri Metropolis, A. Ph.D seminar paper presented to the Department of Geography and Regional Planning, Delta State University, Abraka.

Lagos State Ministry of Economic Planning and Budget (2004), State of Lagos Megacity and other Nigerian Cities, a Report by the Lagos State Ministry of Economic Planning and Budget in collaboration with the Lagos State Ministry of Physical Planning and Urban Development, the UN-Habitat Office in Nigeria, the State NEPAD Committee and the Lagos Economic Summit Group, Lagos Metropolitan Development and Governance Project 2006

Maltby, E. (1986). WaterloggedWealth:WhyWastetheWorld'sWetPlaces.Earthscan, London ,UK.

McKinney, M.L. (2006). Urbanization as a major cause of biotic homogenization. Biological Conservation, 127, 247– 260.

National Population Commission NPC (2006). The population of Local Government Areas (LGAs) of Lagos State (2006.

Neuwirth, R. (2007). Traffic Stalls Become Market Stalls on The World’s Fastest Growing City, Azure pp. 154-159

O'Connell, M. (2003). Detecting, measuring and reversing changes to wetlands. Wetlands Ecology and Management 11, 397–401.

Odumosu, T. and Balogun, Y. (1999). Lagos State in Maps. Ibadan, REX Charles Publications and CONNEL Publications.

Odunuga, S., and Oyebande, L. (2007). Change Detection and Hydrological Implications in the Lower Ogun Flood Planning South West Nigeria. In Owe, M, and Neale, C. (Eds). Proceedings of Symposium on Remote Sensing for Environmental Change Detection. International Association of Hydrological Sciences (IAHS) publication, 316

Orimoogunje, O.O., Oyinloye, R. O. and Seumah. M. (2009): Geospatial Mapping of Wetlands Potential in Ilesha, South Western Nigeria. Surveyors key Role in Accelerated Development. FIG Working Week, 2009, Eilat Israel, 3-8 May 2009

Oyebande, L.; Obot, E.O. and Bdiliya, H.H. (2003). An inventory of Wetland in Nigeria. Report prepared for World Conservation Union-/UCN, West African Regional Office, Ouagadougou, Burkina Faso

Ramsar Convention Secretariat. (2007). Wise use of wetlands: A conceptual framework for the wise use of wetlands. Ramsar handbooks for the wise use of wetlands, 3rd edition, volume 1. Ramsar Convention Secretariat, Gland, Switzerland.

Schuyt, K., and Brander, L. (2004). The Economic Values of the World’s Wetlands, Gland/Amsterdam, WWF.

Tijani, M.N., Olaleye, A. O. and Olubanjo, O. O. (2011). Impact of Urbanization onWetland Degradation: A Case Study of Eleyele Wetland, Ibadan, South West, Nigeria. Proceedings of the Environmental Management Conference, Federal University of Agriculture, Abeokuta, Nigeria.

Turner, R. E. (1990). Landscape development and coastal wetland losses in the northern Gulf of Mexico. American Zoologist 30:171–197.

Uluocha, N.O. and Okeke, I.C. (2004) Implications of Wetland Degradation for Resource Management Lesson from Nigeria. Geo Journal, 61, 151-154.

United Nations Environmental Programme (UNEP) (2007). The status of the Nigerian

Coastal Zones. Retrieved online from www.unep.org/abdjanconvention/docs.

Zhao,H.Z.; Yang, H.W.; Guan, Y.T. and Jiang, Z.P. (2006).The Transformation of Aluminium Species in the Processes of Coagulation, Sedimentation and Filtration Water Science & Technology Vol 53 No 7 pp 225–233


  • There are currently no refbacks.







Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.