Position Tape Tape Year Length of New River (m) Bending radius of river (m) Length of old River (m)
Nianziwan Natural Natural 1949 2.5 2000 19.7
Zhongzhouzi Artificial 1967 1967 4.3 2500 36.7
Shangchewan Artificial Artificial 1969 3.5 2000 32.7
Shatanzi Natural Natural 1972 1.35 3000 20.3