Abstract
Drift wood (or in-stream large wood, LW) plays an important role in river ecosystems by influencing hydrodynamics and morphology. The final goal of this work is to improve our understanding of wood buoyancy in rivers through the assessment of wood density. We analyse wood pieces retained in the Genissiat dam, French Rhone, and a set of freshly cut riparian trees from the Ain River. Different protocols were set to measure density and buoyancy of these two series of wood samples and to test the effects of drying and wetting, species and wood decay stages. Living and dead trees show average wood density ranging from 590 to 1,080 kg m−3 and from 350 to 910 kg m−3 respectively. Differences in water content clearly affect buoyancy, which ranges from 0.36 (36 % emerged; Abies) to 0.18 (Acer and Fraxinus) as initial values, and increases up to 0.48 (Abies) for dry samples and decreases up to 0 (100 % submerged; Acer) for wet wood. We observed a significant negative linear correlation between wood density and buoyancy. The results from this work will help to understand the evolution of buoyancy through time and estimate local conditions of entrainment and transport.
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Benda LE, Sias JC (2003) A quantitative framework for evaluating the mass balance of in-stream organic debris. For Ecol Manage 172:1–16
Braudrick CA, Grant GE, Ishikawa Y, Ikeda H (1997) Dynamics of wood transport in streams: a flume experiment. Earth Surf Proc Land 22:7
Comiti F, Agostino VD, Moser M, Lenzi MA, Bettella F, Agnese AD, Rigon E, Gius S, Mazzorana B (2012) Preventing wood-related hazards in mountain basins: from wood load estimation to designing retention structures. In: Proceedings, 12th Congress INTERPRAEVENT 2012. Grenoble, France, pp 651–662
Gregory S, Boyer KL, Gurnell AM (2003) The ecology and management of wood in world rivers. Am Fish Soc Symp 37:431
Gurnell A (2012) Fluvial geomorphology: wood and river landscapes. Nat Geosci 5:93–94. doi:10.1038/ngeo1382
Le Lay YF, Piegay H, Moulin B (2013) Wood entrance, deposition, transfer and effects on fluvial forms and processes: problem statements and challenging issues. In: Shroder JF (Ed) Treatise on geomorphology. Elsevier, Amsterdam
MacVicar B, Piegay H (2012) Implementation and validation of video monitoring for wood budgeting in a wandering piedmont river. Earth Surf Proc Land 34(15):2031–2046. Wiley Online Library, doi:10.1002/esp.3240
Montgomery D (2003) Wood in rivers: interactions with channel morphology and processes. Geomorphology 51:1–5
Ruiz-Villanueva V, Bodoque JM, Diez-Herrero A, Eguibar MA, Pardo-Iguzquiza E (2012) Reconstruction of a flash flood with large wood transport and its influence on hazard patterns in an ungauged mountain basin. Hydrol Process. doi:10.1002/hyp.9433
Ruiz-Villanueva V, Blade E, Diez-Herrero A, Bodoque JM, Sanchez-Juni M (2013) Two dimensional modelling of large wood transport during flash floods. Earth Surf Proc Land 39:438–449 (In press)
Wohl E (2013) Floodplains and wood. Earth Sci Rev 123:194–212
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Ruiz-Villanueva, V., Piegay, H., Stoffel, M., Gaertner, V., Perret, F. (2015). Analysis of Wood Density to Improve Understanding of Wood Buoyancy in Rivers. In: Lollino, G., Arattano, M., Rinaldi, M., Giustolisi, O., Marechal, JC., Grant, G. (eds) Engineering Geology for Society and Territory - Volume 3. Springer, Cham. https://doi.org/10.1007/978-3-319-09054-2_33
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DOI: https://doi.org/10.1007/978-3-319-09054-2_33
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