Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments

Soil erosion-associated sedimentation has become a significant global threat to sustainable land and water resources management. Semi-arid regions that characterise much of southern Africa are particularly at risk due extreme hydrological regimes sparse vegetative cover. This study aims address the need for an erosion sediment delivery model successfully incorporates our conceptual understanding processes in semi-arid regions, storage connectivity within catchment. Priorities Sediment Yield Model (SASYM) were simplicity practical applicability resource management while adhering basic geomorphic principles. SASYM was able represent multiple storages catchment effectively change landscape over timeframes. used Pitman rainfall–runoff disaggregated daily timescale, Modified Universal Loss Equation (MUSLE), incorporating probability function theory representation connectors across semi-distributed applied Karoo, South Africa. Although there limited observed data, historical dataset available through dam history. present this history provide evidence change.