TY - GEN
T1 - A stochastic model for vegetation dynamics in interaction with flood events
AU - Miyamoto, H.
AU - Kanda, K.
AU - Michioku, K.
AU - Morioka, J.
AU - Uotani, T.
AU - Ohchi, Y.
AU - Aga, K.
N1 - Publisher Copyright:
© 34th IAHR Congress 2011. All rights reserved.
PY - 2011
Y1 - 2011
N2 - Vegetation overgrowth in river courses has become a serious engineering problem for riparian management in Japan. From both viewpoints of flood control and ecological restoration, it would be necessary to accurately predict the vegetation dynamics for long-term duration. In this study, we tried to develop a stochastic model for predicting the dynamics of trees with emphasis on the interaction with flood events. In the model, the flood discharge was stochastically simulated using a filtered Poisson process, one of the conventional approaches in hydrological time-series generation. The model included the effects of tree growth, loss by the flood impact, and infant tree invasion. The results of Monte Carlo simulation quantitatively indicated that a suitable equilibrium state of tree density for both flood protection and ecological conservation was achieved by a certain floodplain level in each flood discharge scale.
AB - Vegetation overgrowth in river courses has become a serious engineering problem for riparian management in Japan. From both viewpoints of flood control and ecological restoration, it would be necessary to accurately predict the vegetation dynamics for long-term duration. In this study, we tried to develop a stochastic model for predicting the dynamics of trees with emphasis on the interaction with flood events. In the model, the flood discharge was stochastically simulated using a filtered Poisson process, one of the conventional approaches in hydrological time-series generation. The model included the effects of tree growth, loss by the flood impact, and infant tree invasion. The results of Monte Carlo simulation quantitatively indicated that a suitable equilibrium state of tree density for both flood protection and ecological conservation was achieved by a certain floodplain level in each flood discharge scale.
KW - Flood discharge
KW - Riparian ecology
KW - River management
KW - Stochastic analysis
KW - Tree dynamics
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M3 - Conference contribution
AN - SCOPUS:84978602214
T3 - 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
SP - 3089
EP - 3096
BT - 34th IAHR Congress 2011 - Balance and Uncertainty
PB - International Association for Hydro-Environment Engineering and Research (IAHR)
T2 - 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
Y2 - 26 June 2011 through 1 July 2011
ER -