Shifted Flood and Ecology Regimes Due To Channel Bar Greening and Increased Flow Resistance in a Large Dammed River
Yong Hu, Jinyun Deng, Dongfeng Li#, Xixi Lu, Junxiong Zhou, Chenglong Wang, Yitian Li
(# corresponding author)
Geophysical Research Letters 2024
Denser vegetation has slowed flow velocity by 17% ± 2% and increased flow resistance by 21% ± 5%, offsetting the water-level decrease from channel expansion due to scouring and even causing a slight rise in floodwater levels. Furthermore, damming has markedly altered river connectivity, thermal regimes, and solute dynamics, detrimentally affecting fish habitats and aquatic life.
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