Steudel, TBugan, Richard DHKipka, HPfennig, BFink, MDe Clercq, WFlügel, W-AHelmschrot, J2014-06-172014-06-172013Steudel, T., Bugan, R.D.H., Kipka, H., Pfennig, B., Fink, M., De Clercq, W., Flügel, W-A. and Helmschrot, J. 2013. Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa. Hydrology Research, pp 1-201998-9563http://hdl.handle.net/10204/7473Copyright: 2013 IWA Publishing. This is an ABSTRACT ONLY. The definitive version is published in Hydrology Research, pp 1-20Contour bank farming is a well-known agricultural management technique in areas which are characterised by intensive and erosive rainfalls. Contour banks are designed to reduce the flow velocity of overland flow and to intercept water before it concentrates in rills, thereby reducing the risk of soil erosion and land degradation. By their structure, contour banks noticeably impact surface runoff pattern both temporally and spatially. Also subsurface flow may be affected by contour banks. For example, if contour banks intersect the A- and B-horizon of the soil, it can cause significant infiltration of water into the C-horizon, which if saline, can generate saline interflow to downslope areas. Although these aspects have been highlighted in previous research efforts, the quantitative and qualitative impacts of contours on runoff generation and associated erosion dynamics or salinisation are rarely considered in process-based hydrological modelling approaches. In this study an approach was developed to improve distributed hydrological and erosion modelling by integrating contour banks in the delineation and routing of Hydrological Response Units. Applying the distributed and process-based hydrological model J2000 which was modified with a contour bank and erosion module it could be shown that the implementation of contour banks improved the model performance significantly.enContour bank farmingFlow patternsHydrological modellingErosion modellingJ2000 hydrological modelArticleSteudel, T., Bugan, R. D., Kipka, H., Pfennig, B., Fink, M., De Clercq, W., ... Helmschrot, J. (2013). Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa. http://hdl.handle.net/10204/7473Steudel, T, Richard DH Bugan, H Kipka, B Pfennig, M Fink, W De Clercq, W-A Flügel, and J Helmschrot "Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa." (2013) http://hdl.handle.net/10204/7473Steudel T, Bugan RD, Kipka H, Pfennig B, Fink M, De Clercq W, et al. Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa. 2013; http://hdl.handle.net/10204/7473.TY - Article AU - Steudel, T AU - Bugan, Richard DH AU - Kipka, H AU - Pfennig, B AU - Fink, M AU - De Clercq, W AU - Flügel, W-A AU - Helmschrot, J AB - Contour bank farming is a well-known agricultural management technique in areas which are characterised by intensive and erosive rainfalls. Contour banks are designed to reduce the flow velocity of overland flow and to intercept water before it concentrates in rills, thereby reducing the risk of soil erosion and land degradation. By their structure, contour banks noticeably impact surface runoff pattern both temporally and spatially. Also subsurface flow may be affected by contour banks. For example, if contour banks intersect the A- and B-horizon of the soil, it can cause significant infiltration of water into the C-horizon, which if saline, can generate saline interflow to downslope areas. Although these aspects have been highlighted in previous research efforts, the quantitative and qualitative impacts of contours on runoff generation and associated erosion dynamics or salinisation are rarely considered in process-based hydrological modelling approaches. In this study an approach was developed to improve distributed hydrological and erosion modelling by integrating contour banks in the delineation and routing of Hydrological Response Units. Applying the distributed and process-based hydrological model J2000 which was modified with a contour bank and erosion module it could be shown that the implementation of contour banks improved the model performance significantly. DA - 2013 DB - ResearchSpace DP - CSIR KW - Contour bank farming KW - Flow patterns KW - Hydrological modelling KW - Erosion modelling KW - J2000 hydrological model LK - https://researchspace.csir.co.za PY - 2013 SM - 1998-9563 T1 - Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa TI - Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa UR - http://hdl.handle.net/10204/7473 ER -