Peter F. Okoth : Soil Erosion Assessment and Spatial Risk Modelling

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27 Jan 2003 16:00
Unit: Wageningen University
Location: Aula (gebouw 362), Gen. Foulkesweg 1, Wageningen
Website: http://www.gcw.nl/dissertations/
Promotor: prof.dr.ir. A.K. Bregt (Geo-information Science - Geografical Information Systems)prof.dr.ir. E.M.A. Smaling (Sustainable Agriculture)
Co Promotor: dr. G.F. Epema

 The method used in the thesis identified farmers as the beneficiaries of the lowest field-plot level assessment, a group of farmers as the beneficiaries of the second level, and government agencies as the beneficiaries of the highest level, the landscape unit. Spatial attributes considered important for the farmer to manage include the choice of crop, the ground cover, and the placement of the crop in particular positions in the landscape. Footpaths and field-plot boundaries need to be managed in watersheds to curb or control the problem of soil erosion. Roads, built-up areas, school compounds, river valleys and stream banks need to be managed at the highest landscape unit level. The method has proposed an interdisciplinary systems approach in soil erosion risk management involving interventions, policies, resources, landscape properties, processes, time, energy and space for each level to achieve sustainability.
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