Rivers 0.0 / 5 ? GeographyRiversIGCSEEdexcel Created by: MuringoCreated on: 11-12-20 09:57 Abstraction Removal of water from rivers, lakes or groundwater for human use. 1 of 10 Base flow That part of a river's discharge fed by groundwater. 2 of 10 Channel The part of a valley floor occupied by the flowing water of a stream or river. 3 of 10 Channel network The system of tributary streams that join increasingly larger river channels in a drainage basin. 4 of 10 Dam (& reservoir) A barrier (made on earth, concrete or stone) built across a valley to interrupt river flow and create a man‐made lake (reservoir) to store water. 5 of 10 Discharge The quantity of water that passes a given point on a stream or river‐bank within a given period of time. 6 of 10 Drainage basin The area drained by a river and its tributaries, bounded by a watershed. 7 of 10 Erosion The wearing down of the land by water, ice, wind and gravity. 8 of 10 Flood When river discharge exceeds river channel capacity and water spills out of the channel onto the floodplain and other areas. 9 of 10 Flood plain That part of a valley floor over which a river spreads during seasonal floods. 10 of 10
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