Flow and Sediment Connectivity in Semi‐arid Landscapes in SE Spain: Patterns and Controls

摘要: Much of the water and sediment fluxes in semi-arid catchments are found to be highly concentrated localized pathways. Identifying location these pathways landscape is important for management restoration. Measures can then targeted so as minimize potential erosion flux along A method repeat field mapping flow suitable Mediterranean presented. Several small Carcavo basin, SE Spain, differing topographic land use characteristics, were monitored under several events. Morphometric properties analysed compared with rainfall characteristics. Number length varied characteristics also antecedent conditions. In low events, runoff sources main disconnected, but a larger event, network became fully connected. The pathway patterns showed that man-made lines such terrace embankments tracks have major influence on connectivity. Micro-topographic factors, soil moisture presence vegetation influential frequency fluxes. Runoff hotpots development identified, which should mitigation restoration measures using vegetation. relevance local scale factors emphasizes importance observations understand connectivity landscape. Copyright © 2014 John Wiley & Sons, Ltd.