Development and Assessment of an Updated Tool for the Design of Soil and Water Conservation Structures in the Sugar Industry of South Africa

Agricultural Engineering International: CIGR Journal

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Title Development and Assessment of an Updated Tool for the Design of Soil and Water Conservation Structures in the Sugar Industry of South Africa
 
Creator Otim, Daniel
Smithers, Jeff
Senzanje, Aidan
van Antwerpen, Rianto
Thornton-Dibb, Sean LC
 
Subject ACRU
design norm
soil and water conservation
soil loss
sugarcane
South Africa
 
Description Sugarcane in South Africa is grown on wide-ranging soils, sometimes in non-ideal climates and on steep topographies where soils are vulnerable to erosion. Sugarcane fields are protected against erosion through, inter alia, the use of engineered waterways, contour banks and spill-over roads. A comparison of design norms in the National Soil Conservation Manual and norms used in the sugar industry clearly shows discrepancies that need to be investigated. Furthermore, the sugar industry design nomograph was developed based on an unsustainable soil loss limit, does not include any regional variations of climate and the impact on soil erosion and runoff and does not include vulnerability during break cropping. The aim of this research was to develop and assess updated design norms for soil and water conservation structures in the sugar industry of South Africa. The Agricultural Catchments Research Unit (ACRU) model estimates event-based erosion and the ACRU was used to conduct simulations for the different practices in the sugar industry and the outcome used to build the updated tool for the design of soil and water conservation structures in the sugar industry of South Africa, using MS Access with a graphical user interface. The updated tool is robust, based on sustainable soil loss limits, includes regional variations of climate and their impact on soil erosion and runoff and also includes vulnerability during break cropping. It is more representative of conditions in the sugar industry of South Africa and therefore recommended for use in place of the current sugar industry design norms.
 
Publisher International Commission of Agricultural and Biosystems Engineering
 
Date 2021-12-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://www.cigrjournal.org/index.php/Ejounral/article/view/6047
 
Source Agricultural Engineering International: CIGR Journal; Vol. 23 No. 4 (2021): CIGR Journal
1682-1130
 
Language eng
 
Relation http://www.cigrjournal.org/index.php/Ejounral/article/view/6047/3721
 
Rights Copyright (c) 2021 Agricultural Engineering International: CIGR Journal
 

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