How does damming on fine-grained rivers counterintuitively raise the flood risk of downstream channels?

Hongbo Ma1, Jeffrey A Nittrouer2, Xudong Fu3, Gary Parker4, Yuanfeng Zhang5, Yuanjian Wang5, Yanjun Wang6, Michael P. Lamb7, Julia Cisneros8, Jim Best9, Daniel R Parsons10 and Baosheng Wu11, (1)Tsinghua University, Department of Hydraulic Engineering, Beijing, China, (2)Rice University, Department of Earth, Environmental, and Planetary Sciences, Houston, TX, United States, (3)State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, China, (4)University of Illinois at Urbana Champaign, Urbana, IL, United States, (5)Yellow River Institute of Hydraulic Research, Zhengzhou, China, (6)Tsinghua University, Hydraulic Engineering, Beijing, China, (7)California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, (8)Texas A & M University, College Station, TX, United States, (9)University of Illinois at Urbana Champaign, Department of Geology, Champaign, United States, (10)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (11)Tsinghua University, State Key Laboratory of Hydroscience and Engineering, Beijing, China