Figure 5

(a) Relationship among mean annual discharge, sediment concentration and bank erosion measured at Reach 3 (b) Rotational failure of Reach 1 streambanks with obvious slides and slump surfaces at the upper parts of the riparian area (c) Slab failure of the composite streambank at Reach 3 (d) Ternary diagram of clay, silt and sand fractions from the soil samples recovered from streambanks in the three study reaches.