Education:
BSc Agric (Geology and Geography) 1987 Stellenbosch University, South Africa
BSc Hons (Geography) 1989 Stellenbosch University, South Africa
MSc Agric (Soil Science) 1997 Stellenbosch University, South Africa
PhD (Land and Forest Management) 2009 University of Ghent, Belgium
Research Interests:
Soil salinity management, soil and soil solution dynamics, development of specialized soil water measurement techniques for agricultural purposes, GIS and the spatial distribution of soil and soil related variables.
Teaching:
Soil Science 771 – Specialized Pedology and Soil Genesis
Research Projects:
Land use impacts on salinity in Western Cape Waters (WRC project K5/1849).
Optimized monitoring of groundwater – surface water – atmospheric parameters for enhanced decision making at a local scale (WRC K5/1846).
Hyperspectral remote sensing of salt-affected soils
Gypsum mine rehabilitation: looking at ways to enhance water holding capacity of the soil.
Recent Publications:
de Clercq, W.P. (2009). Space-time variability of soil salinity in irrigated soils of South Africa. Gent, Belgium. (ISBN: 978-90-5989-276-7).
de Clercq, W.P., Van Meirvenne, M., Fey, M.V. (2009). Prediction of the depth trend in soil salinity of a vineyard after sustained irrigation with saline water. Agricultural Water Management 96: 395-404.
de Clercq, W.P., Jovanovic, N., Fey, M., (Eds) (2009). Research on Berg River water management. WRC Report, (in press).
de Clercq, W.P. Fey, M.V., Jovanovic, N. (2009). An overview of the salinization problem in the Berg River catchment (South Africa), (Published proceedings) Accepted for publication in: Water Pollution X, Wit Press, Southampton, UK.
Bugan,R.D.H., N.Z. Jovanovic, W.P. De Clercq, J. Helmschrot, Flügel W-A and G.H. Leavesley (2009). A comparative analysis of the PRMS and J2000 hydrological models applied to the Sandspruit Catchment (Western Cape, South Africa). (Published proceedings) Accepted for publication in: Water Pollution X, Wit Press, Southampton, UK.
Jovanovic, N.Z., Bugan, R.D.H., Frantz, G., de Clercq, W. and Fey, M.V. (2008). Hydrosalinity fluxes in a small scale catchment of the Berg River (South Africa). In: D. Prats Rico, C.A. Brebbia, Y. Villacampa Esteve (eds.) Water Pollution IX, 603-612. ISBN 978-1-84564-115-3, Wit Press, Southampton, UK.
de Clercq, W.P., Kunneke, A. (2007). A protocol for precise mapping of scientific data. PositionIT, South Africa.
de Clercq, W.P., Ellis, F., Fey, M.V., Van Meirvenne, M., Engelbrecht, H., and de Smet, G. (2006). Water and soil quality information for integrated water resource management: berg river catchment. WRC Report, TT252/06, (ISBN No. 1770053662).
Gorgens, A.H.M. and de Clercq, W.P. (eds) (2006). Summary of Water Quality Information System and soil quality studies: Research on Berg River water management. WRC Report: TT252/06, (ISBN No. 1770053670).
de Clercq, W.P., Van Meirvenne, M., (2005). Effect of long term irrigation application on the variation of soil electrical conductivity in vineyards. Geoderma 128: 221-233.
de Clercq, W.P., Van Meirvenne, M., (2005). Regional sustainability in table grape production on saline soils. South African Journal of Plant and Soil 23: 113-119.
Patents
de Clercq, W.P. (2002). Sample Retrieval System. Patent No. ZA 2000/3017, South Africa,
Professional Affiliations:
Precision Viticulture Group, Stellenbosch (member)
Soil Science Society of South Africa (member)
South African Society for Eonology and Viticulture (member)
International Pedometrics Working Group of the IUSS (member)
The Soil Science Discussion Group of Stellenbosch (member)
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