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Lawrence T. Dube ;Tropical and Subtropical Agroecosystems 2008, 8 (2)

Autor: Clifford Tafangenyasha

Fuente: http://www.redalyc.org/


Introducción



Tropical and Subtropical Agroecosystems E-ISSN: 1870-0462 ccastro@uady.mx Universidad Autónoma de Yucatán México Tafangenyasha, Clifford; Dube, Lawrence T. Evaluation of the usefulness of the south african scoring systems in a savanna river Tropical and Subtropical Agroecosystems, vol.
8, núm.
2, agosto, 2008, pp.
135-144 Universidad Autónoma de Yucatán Mérida, Yucatán, México Available in: http:--www.redalyc.org-articulo.oa?id=93980203 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Tropical and Subtropical Agroecosystems, 8 (2008): 135 - 144 EVALUATION OF THE USEFULNESS OF THE SOUTH AFRICAN SCORING SYSTEMS IN A SAVANNA RIVER Tropical and [EVALUACIÓN DE LA UTILIDAD DEL SISTEMA DE CALIFICACIÓN SUDAFRICANO EN UN RÍO DE SABANA] Subtropical Agroecosystems Clifford Tafangenyasha1* and Lawrence T.
Dube2 1 Department of Environmental Science and Health, National University of Science and Technology,P.
Bag AC 939 Bulawayo, Zimbabwe E-mail: ctafangenyasha@yahoo.com 2 Department of Geography and Environmental Science, University of Zululand, P.
Bag X1001 KwaDlangezwa, 3886, South Africa E-mail: ltdube@pan.uzulu.ac.za *Corresponding author SUMMARY RESUMEN The usefulness of the South African Scoring Systems (SASS) in a savanna river was studied for an array of lowveld streams.
The streams were also characterised using standard chemical methods from August 2004 to May 2005 to complement biological monitoring methods.
Nutrients such as total nitrogen, nitrate nitrogen and total phosphates did not show differences (p 0.05) between the wet and dry seasons.
The SASS and ASPT scores were different (p 0.05) between dry and wet season at test sites but not between the dry and wet season at control sites.
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