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Sediment yield scale dependency in the River Eden basin, northwest England

Lookup NU author(s): Dr James Bathurst, Dr Paul Quinn


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A preliminary assessment of the spatial scale dependency of sediment yield from the Eden basin in northwest England is made on the basis of: suspended and bed load yield estimates at scales from 1 to 1370 km2, spot samples of suspended sediment concentration, and a dual resolution mapping exercise in which a generalized soil erosion risk map for the upper Eden (322 km 2) is complemented by a high resolution (2 m) map of erosion features and sediment transport pathways in a 5.4-ha farm field. Overall, annual specific total sediment yield decreases as basin area increases: specific bed load yield decreases rapidly but specific suspended load yield may even show a small downstream increase. The spot sampling campaign and the dual resolution mapping exercise suggest that this could reflect the impact of livestock farming in the more lowland areas. The results demonstrate the importance of sediment source and transport path-ways in explaining scale dependency in sediment yield.

Publication metadata

Author(s): Bathurst JC, Quinn PF, Gravier J, Orange J, Vivier P, Vogel S

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: IAHS VIIth Scientific Assembly

Year of Conference: 2005

Pages: 339-346

Publisher: IAHS Publication