4.3 Sediment connectivity
Before 1981, the annual sediment load slowly fluctuated in the Jingjiang
River. After 1981, it decreased due to the
Gezhouba Reservoir impoundment. After the impoundment of the TGD in
2003, a large amount of sediment load was intercepted, which led to a
significant decrease of sediment load downstream of the dam (Fig. 6).