Field verification site visits were conducted in the <strong>catchment</strong> area to assess the location and attributes of the <strong>wetland</strong>s indicated in the <strong>wetland</strong> database. The attributes in the database has an overall accuracy of 60% and the <strong>wetland</strong> layer an accuracy of 70%. Wetland Database for UORC - 96 -
10. REFERENCES Abbott Grobicki (Pty) Ltd. No date. New Green. A database of developing green crops. Water Research Commission. Adebayo, A.A. No date. Sustainable construction in Africa. Agenda 21 for sustainable construction in developing countries. African position paper: Prof A. Adebayo. Allan, D.G., Seaman, M.T. & Kaltja, B. 1995. The endorheic pans of South Africa. In: Cowan, G.I. 1995. Wetlands of South Africa. Department of Environmental Affairs and Tourism. Pretoria. Barnes, K.N. 1998. The important bird areas of southern Africa. BirdLife South Africa, Johannesburg. Barnes, K.N. 2000. The ESKOM Red Data Book of Birds of South Africa, Lesotho and Swaziland. BirdLife South Africa, Johannesburg. Brady, N.C. & Weil, R.R. 1999. The nature and properties of soils. Prentice Hall Inc. New Jersey. Branch, B. 1998. Field guide to snakes and other reptiles of southern Africa. Struik Publishers, Cape Town. Bromilow, C. 2001. Problem plants of South Africa. Briza Publications, Pretoria. Chutter, F.M. and Engelbrecht, J.S. 1997. A Report on the invertebrate/fish survey of that part of the Rietspruit to be diverted in the development of the Kriel Block 6 Open Cast Coal Pits undertaken in the 22nd August 1997. Afridev Consultants. Cirmo, C.P. Adirondack and Catskill <strong>wetland</strong> comparisons based on geology, surficial stratigraphy and hydrology. Presentation, 2003 Seattle annual meeting (Nov 2-5) Geological Society of America. Abstracts with Programs 35(6): 206. Coetzee, J.P. 1993. Phytosociology of the Ba and Ib land types in the Pretoria-Witbank- Heidelberg area. M.Sc. dissertation. Faculty of Science. University of Pretoria. Pretoria. Cowan, G.I., South Africa and the Ramsar convention. In: Cowan, G.I. (ed) 1995. Wetlands of South Africa. Department of Environmental Affairs and Tourism, Pretoria. Cowardin, L.M., Carter, V. Golet, F.C. & LaRoe, E.T. No date. Classifiaction of <strong>wetland</strong>s and deepwater habitats of the United States. US Department of the Interior. Washington. CSIR. 2001. State of the Rivers Report. Crocodile, Sabie-Sand & Olifants River Systems. WRC Report No. TT 147/01. De Frey, W.H. & Robbeson, R.A.J. 1999. A baseline study on the Landau-Tewwfontein Spruit <strong>wetland</strong>s at Kleinkopje Colliery, SACE. Eco-Info. Wetland Database for UORC - 97 -
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