Poyang and Dongting Lakes, Yangtze River: tributary lakes blocked by main-stem aggradation.
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ABSTRACT:
SUBMITTER: An C
PROVIDER: S-EPMC9335185 | biostudies-literature | 2022 Jul
REPOSITORIES: biostudies-literature
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Poyang and Dongting Lakes, Yangtze River: tributary lakes blocked by main-stem aggradation.
An Chenge C Fang Hongwei H Zhang Li L Su Xinyue X Fu Xudong X Huang He Qing HQ Parker Gary G Hassan Marwan A MA Meghani Nooreen A NA Anders Alison M AM Wang Guangqian G
Proceedings of the National Academy of Sciences of the United States of America 20220711 30
During its 6,300-km course from the Tibetan Plateau to the ocean, the Yangtze River is joined by two large lakes: Dongting Lake and Poyang Lake. We explain why these lakes exist. Deglaciation forced the ocean adjacent to the Yangtze mouth to rise ∼120 m. This forced a wave of rising water surface elevation and concomitant bed aggradation upstream. While aggradation attenuated upstream, the low bed slope of the Middle-Lower Yangtze River (∼2 × 10<sup>-5</sup> near Wuhan) made it susceptible to se ...[more]
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