Do badlands (always) control sediment yield? Evidence from a small intermittent catchment

The objective of this paper is to analyse the production and yield fine sediment in a small mountain catchment (10 km2), characterised by patches badlands (25% area) drained intermittent streams. study area located Southern Central Pyrenees. performed at multiple temporal scales further highlight: (i) effect pulses transfer water sediment; (ii) contribution from catchment; (iii) role drainage network as source sink. Significant correlations between meteorological flow variables were found; specifically, strongest positive relations observed stream flashiness, duration period which dry suspended concentration. Results indicated that do not always control export sediments. At annual scale supply around 40% total yield. Seasonally produced can be higher than amount exported outlet, suggesting channel acts In terms production, represent 53% taking also into account agricultural fields forest areas. emphasise key on controlling transfer, direct relation character frequency magnitude such determines Sediment Delivery Ratio (SDR), depending whether sink or source.