River Basin Erosion Dynamics

Controls of erosion in basin 11 • Modest statistically significant relationships between long-term measures of erosion and MAP and relief Unclear what, if any, processes might be driving these relationships – likely - result of extensive agriculture Erosion Rate (mm/kyr) 10Be Concentration (107 atoms/g) y = -0.6541x + 895.14 R2 0.42989 p = 0.008 90 80 70 60 50 40 30 20 10 0 1260 1280 1300 MAP (mm/yr) 1320 1340 8 7 CO 5 + 32 1 y 55250x 107 R² = 0.33109 p = 0.025 Erosion Index 0.9 y = 0.0007x-0.1893 0.8 R2 0.33036 0.7 p = 0.025 0.6 0.5 0.4 0.3 0.2 0.1 1 9 0.0 0 500 1000 1500 0 Basin Relief (m) 500 Basin Relief (m) 1000 1500

View entire presentation