CALEDON RIVER: Topography, geology and soils

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Map of the Caledon River

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TOPOGRAPHY
    GEOLOGY                                    
    SOILS                                    
The soils have a moderate to high erosivity index, which coupled with poor land use practices, has resulted in high erosion rates. This is reflected in the sedimentation of Welbedacht Dam and the operating rules that have to be adopted for the water supply infrastructure in this area. (Ref 1)
The Caledon catchment has almost 100% grassland cover but poor management practices result in high sediment yields. The slope as well as the erodability of the soils in the upper Caledon catchment lead to increased sediment deposition.(www.environment.gov.za/soer/reports/rivers/free%20state/Free%20State.pdf)
  References                                      

Ref 1:  Department of Water Affairs and Forestry, South Africa. 2004. Internal Strategic Perspective: Upper Orange Water Management Area.
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