Assessment of land management practices on soil erosion using SWAT model in a Tunisian semi-arid catchment

Prioritization of Sub-Watersheds to Sediment Yield and Evaluation of Best Management Practices in Highland Ethiopia, Finchaa Catchment

“…Like the magnitude of the sediment yields, the performance of BMPs varies along different regions. The highest sediment yield reduction by parallel terraces compared to contour farming and reforestation was reported in the Tunisian semi-arid region [54]. Although the magnitude of the reduction varied, terracing was also reported with higher sediment yield reduction compared to contour farming in the Finchaa catchment.…”

“…Research experience showed that there is an increase in study reports on soil erosion and sediment yield with evaluation of different soil and water conservation practices using the SWAT model in different parts of the world. The study by Mosbahi and Benabdallah [54] reported that SWAT model was capable of identifying the optimal management practice under a specific land use in a Tunisian semi-arid catchment. The SWAT model was used to evaluate the effectiveness of contour farming and filter strips on ecosystem services in the Thika-Chania catchment, Kenya [55].…”

“…However, the severity of the sediment yield varies along a region. Mosbahi and Benabdallah [54] classified soil loss severity as high when the sediment yield is in the range of 10-20 t ha -1 yr -1 and very high when the yield exceeds 20 t ha −1 yr −1 in semi-arid areas. A high erosion rate is reported for when a sediment yield ranges from 7 to 13 t ha −1 yr −1 in the Carapelle watershed, Northern Apulia [56].…”

Hydrological process simulation in Manas River Basin using CMADS

“…Pradhan et al [23] applied the SWAT model and an artificial neural network to basins in tropical, subtropical, arid, and semiarid regions in Asia and showed that the SWAT model and the artificial neural network model performed better when used in low-and high-flow simulations instead of average traffic, respectively. Mosbahi and Benabdallah [24] evaluated soil erosion land management in a semiarid watershed in Tunis using the SWAT model, and the SWAT model successfully reproduced the correlation between water flow, simulated runoff, and sediment yield. In addition, Mengistu et al [12] used a physical similarity regionalization method to allocate, calibrate, and verify, using the SWAT model in a catchment area where observed data were limited, and accordingly proposed a new method for estimating the water balance composition in a datadeficient area in South Africa.…”

Regionalization of the SWAT+ model for projecting climate change impacts on sediment yield: An application in the Nile basin

“…The model assumes that all the eroded sediments within the HRU reach the river ( Lenhart et al, 2005 , de Vente et al, 2013 ). SWAT has been widely used for sediment yield modeling in several river basins across the globe at different spatial scales ( Betrie et al, 2011 , Tibebe and Bewket, 2011 ; Mosbahi et al, 2013 ; Phuong et al, 2014 ; Bonumá et al, 2015 ; Vigiak et al, 2017 ; Aga et al, 2018 ; Markhi et al, 2019 ; Mosbahi and Benabdallah, 2020 ; Shrestha et al, 2020 ) with limited applications on regional to continental sediment yield modeling. Previous studies have highlighted the sediment yield sensitivity issues of the model with regards to the resolution of input data ( Cotter et al, 2003 , Luzio et al, 2005 , Lin et al, 2013 ) and the spatial scale dependency of the MUSLE ( Chen and Mackay, 2004 , Vigiak et al, 2015 , Gwapedza et al, 2018a ).…”