The publisher regrets that due to an error in production, part of the Acknowledgements section was omitted from the above paper. We wish to apologise to the authors and to the readers for any inconvenience caused by this error. The full version of the Acknowledgements can be found below.

This study has received financial support from the China National Science and Technology Support Program (2012BAB04B02), the Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (2014ZY05), the National Natural Science Foundation of China (51209221) and the special fund for sediment research of IWHR (Niji1234), respectively. The authors would like to express sincere thanks to the Three Gorges Dam Bureau of Hydrology and Water Resource Survey for their support in our field measurements, as well as indoor particle gradation measurements, in...

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