Table 1. Initial specification and sediment trapping characteristics of proposed lower Jinsha dam cascade Wudongde (WDD) Baihetan (BHT) Xiluodu (XLD) Xiangjiaba (XJB) Inflow I 108 m3/yr 1164 1312 1440 1440 Sediment load Sy 108 m3/yr 1.06 1.15 1.21 1.22 Total capacity T 108 m3 58.6 205.1 115.7 51.6 Adjustable capacity C 108 m3 26.2 104.4 64.6 9.0 Residence time C/I years 0.023 0.080 0.045 0.006 Trapping efficiency TE0 0.67 0.82 0.76 0.35