Beneficial effect of palm geotextiles on inter-rill erosion in South African soils and mine dam tailings : a rainfall simulator study

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dc.contributor.author Paterson, D.G. (David Garry)
dc.contributor.author Buhmann, C.
dc.contributor.author Pienaar, G.M.E.
dc.contributor.author Barnard, R.O. (Robin Oxley), 1940-
dc.date.accessioned 2012-01-03T09:19:33Z
dc.date.available 2012-01-03T09:19:33Z
dc.date.issued 2011-08-01
dc.description.abstract Geotextiles are reported to be highly effective and economically viable erosion control products. The objective of this study was to test this hypothesis by determining the extent of differences in erosion-related variables between bare soils and mine tailings and those covered with palm mats, via rainfall simulation. Erosion parameters studied included runoff (RO), sediment load in the runoff (SL), percentage of stable aggregates (SA), final infiltration rate (FI) and inter-rill erodibility (Ki). Thirty samples, representative of South African soils and mine tailings, were investigated. The soils varied considerably with respect to their textural, chemical and mineralogical properties in line with soil taxonomy, annual precipitation and geological substrate. Tailing sample selection was based on the dominant type of mine. Erosion parameters varied greatly within, but to a much lower extent between, the two different types of material. Several significant correlations were obtained. Sediment load had the best correlation with kaolinite content and with fine sand content, while for runoff, the best correlation was with organic carbon content. When the samples were covered with palm mats, final infiltration rate, stable aggregate and inter-rill erodibility values were similar to those of bare materials and the amount of runoff was slightly higher. Sediment load, however, was reduced by 65%. These results document the suitability of palm geotextiles for soil conservation. en
dc.description.sponsorship The European Commission (EC), Specific Targeted Research Projects (FP6 - STREPs) for Developing Countries (INCO-DEV) Programme en_US
dc.description.uri http://www.plantandsoil.co.za en_US
dc.identifier.citation Paterson, DG, Buhmann, C, Pienaar, GME & Barnard, RO 2011, 'Beneficial effect of palm geotextiles on inter-rill erosion in South African soils and mine dam tailings : a rainfall simulator study', South African Journal of Plant and Soil, vol. 28, no. 3, pp. 181-189. en
dc.identifier.issn 0257-1862
dc.identifier.uri http://hdl.handle.net/2263/17726
dc.language.iso en en_US
dc.publisher South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences en_US
dc.rights South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences en
dc.subject Inter-rill erodibility en
dc.subject Soil and water conservation en
dc.subject Palm leaf mats en
dc.subject.lcsh Rainfall simulators -- South Africa en
dc.subject.lcsh Runoff -- South Africa en
dc.subject.lcsh Conservation of natural resources -- Research -- South Africa en
dc.subject.lcsh Geotextiles -- South Africa en
dc.subject.lcsh Soil erosion -- South Africa en
dc.title Beneficial effect of palm geotextiles on inter-rill erosion in South African soils and mine dam tailings : a rainfall simulator study en
dc.type Article en


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