River Basin Erosion Dynamics

• Controls of erosion in basin 11 No 137Cs High 210Pbex, except at outlet where channel has been altered Contemporary sediment yield 50% lower than long- term average 0.56 -0.65 0.66 0.81 Normalized 10Bem 0.82 - 1.2 1.3-1.6 1.7 1.9 2-2.7 2.8-6.1 6.2-13 14-28 concentration (107 atoms/g) BDL 2.3 3.7 210Pb, activity ex 3.8-4.6 (Bq/kg) 4.7-5.4 5.5-6.0 6.1 -6.7 6.8-7.3 7.4-8.5 8.6 11.8 29-65 11.9 - 15.6

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