Natural Hazards

, Volume 67, Issue 2, pp 855–867 | Cite as

Large-scale simulation of watershed mass transport: a case study of Tsengwen reservoir watershed, southwest Taiwan

  • Ko-Fei Liu
  • Ying-Hsin WuEmail author
  • Yi-Chin Chen
  • Yu-Jia Chiu
  • Shang-Shu Shih
Original Paper


We present the large-scale simulation of watershed mass transport, including landslide, debris flow, and sediment transport. A case study of Tsengwen reservoir watershed under the extreme rainfall triggered by typhoon Morakot is conducted for verification. This approach starts with volume-area relation with landslide inventory method to predict temporal and regional landslide volume production and distribution. Then, debris flow model, Debris-2D, is applied to simulate the mass transport from hillslope to fluvial channel. Finally, a sediment transport model, NETSTARS, is used for hydraulic and sediment routing in river and reservoir. Near the water intake at the reservoir dam, the simulated sediment concentration is in good agreement with the measured one. The proposed approach gives good prediction and should help the management of reservoir operation and disaster prevention.


Large-scale simulation Watershed Debris-2D Sediment transport Landslide 



We thank the Water Resources Agency, Ministry of Economic Affairs of Taiwan (Republic of China) for financially supporting this research and many valuable hydrological data.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Ko-Fei Liu
    • 1
    • 2
  • Ying-Hsin Wu
    • 1
    Email author
  • Yi-Chin Chen
    • 2
  • Yu-Jia Chiu
    • 2
  • Shang-Shu Shih
    • 2
  1. 1.Department of Civil EngineeringNational Taiwan UniversityTaipeiRepublic of China
  2. 2.Hydrotech Research InstituteNational Taiwan UniversityTaipeiRepublic of China

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