TY - JOUR
T1 - Biomass selection by floods and related timescales
T2 - Part 1. Experimental observations
AU - Perona, P.
AU - Molnar, P.
AU - Crouzy, B.
AU - Perucca, E.
AU - Jiang, Z.
AU - McLelland, S.
AU - Wüthrich, D.
AU - Edmaier, K.
AU - Francis, R.
AU - More Authors, null
PY - 2012
Y1 - 2012
N2 - Several research investigations have explored the interaction between morphodynamic and vegetation growth processes from both the modelling and the experimental viewpoints. Results have mainly been concerned with morphologic analyses of the effects of vegetation on long term riverbed evolution without addressing the relative role of the timescales between such processes. This paper presents for the first time the statistics of uprooted biomass obtained while perturbing the vegetation growing in the river bed with periodic disturbances of constant magnitude. That is, we force the biological and hydrological processes to interact and study the related timescales in order to shed light on the role of flood disturbances in selecting the component of the biomass that has a higher chance of survival in relation to its growth stage. A simple interpretative stochastic model is then presented and thoroughly discussed in a companion paper (Biomass selection by floods and related timescales: Part 2. Stochastic modelling).
AB - Several research investigations have explored the interaction between morphodynamic and vegetation growth processes from both the modelling and the experimental viewpoints. Results have mainly been concerned with morphologic analyses of the effects of vegetation on long term riverbed evolution without addressing the relative role of the timescales between such processes. This paper presents for the first time the statistics of uprooted biomass obtained while perturbing the vegetation growing in the river bed with periodic disturbances of constant magnitude. That is, we force the biological and hydrological processes to interact and study the related timescales in order to shed light on the role of flood disturbances in selecting the component of the biomass that has a higher chance of survival in relation to its growth stage. A simple interpretative stochastic model is then presented and thoroughly discussed in a companion paper (Biomass selection by floods and related timescales: Part 2. Stochastic modelling).
KW - Biomass selection
KW - Flow-vegetation interaction
KW - Fluvial ecomorphology
KW - Laboratory experiment
KW - Riparian vegetation
KW - Vegetation roots
UR - http://www.scopus.com/inward/record.url?scp=84858161627&partnerID=8YFLogxK
U2 - 10.1016/j.advwatres.2011.09.016
DO - 10.1016/j.advwatres.2011.09.016
M3 - Article
AN - SCOPUS:84858161627
SN - 0309-1708
VL - 39
SP - 85
EP - 96
JO - Advances in Water Resources
JF - Advances in Water Resources
ER -