三峡大坝下游水位变化与河道形态调整关系研究
杨云平, 张明进, 孙昭华, 韩剑桥, 李华国, 由星莹

The relationship between water level change and river channel geometry adjustment in the downstream of the Three Gorges Dam (TGD)
Yunping YANG, Mingjin ZHANG, Zhaohua SUN, Jianqiao HAN, Huaguo LI, Xingying YOU
表3 河床粗化引起的糙率变化[31]
Tab. 3 Roughness change due to riverbed coarsening [31]
河床组成类型 砂卵石河段 砂卵石~沙质过渡段 沙质河段
河段 宜昌—枝城(61 km) 枝城—大埠街(50 km) 荆江沙质段(208 km) 城陵矶—湖口(546 km)
增加倍数 1.91 1.65 1.03 1.02