World Journal of Forest Research(WJFR)

Department of Earth Sciences, University of Yaounde 1,Faculty of Science, Cameroon

Publications

• Research Article   
  Critical Hydrological Dynamics and Flooding in U-Shaped Valleys Within Urban Areas: A Case Study of Some Stream Channel Systems in Yaounde and Its Environs, Southern Cameroon Plateau
  Author(s): Roger Bissaya*, Richard Tanwi Ghogomu, Bernard Njom and Mero Yannah
  
  This paper examines the hydrological dynamics and flooding of U-shaped valleys in urban areas, with projection to some stream channel systems in Yaounde and its environs. So, it relies on analysis of unmodified (or natural) stream channel systems, assuming that the quantity of water of an unmodified stream channel system is directly related to the size it usually carries and that it tends to bring back during high discharges or floods. The drainage basins are usually elongated, with the time of concentration depending on the trunk stream length, e.g., 9.35 hours for the Mefou watershed and 5.21 hours for the Mfoundi sub-watershed. The streams continuously adjust the shape of their channels; for instance, in the Mefou River, the floodplain straight channel segments do occur with sinuous line, thus the sediments are deposited to form bars. Such path and deposition of sediments result in.. Read More»
  

  Abstract HTML PDF