caa a22 4500 606218319 CHVBK 20210128101112.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s11104-014-2335-y doi (NATIONALLICENCE)springer-10.1007/s11104-014-2335-y Soil water uptake and root distribution of different perennial and annual bioenergy crops [Elektronische Daten] [Fabien Ferchaud, Guillaume Vitte, Frédéric Bornet, Loïc Strullu, Bruno Mary] Background and aims: Bioenergy crops are expected to provide biomass as a replacement for fossil resources, but their impact on the water cycle is still under question. This study aimed at both quantifying the ability of bioenergy crops to use soil water and analysing the relationship between their root systems and soil water uptake. Methods: Water content was monitored continuously for 7years (2007-2013) under perennial (Miscanthus × giganteus and Panicum virgatum), semi-perennial (Festuca arundinacea and Medicago sativa) and annual (Sorghum bicolor and × Triticosecale) bioenergy crops. Root distribution was characterized in 2010 down to 3m depth. Soil water deficit (SWD) was calculated as the difference between field capacity and actual water content. Results: Maximal SWD (0-210cm) during the growing season was higher for semi-perennials, despite a lower biomass production than perennials. Water capture in deep soil layers was greater under perennials and semi-perennials than under annual crops. A curvilinear asymptotic relationship was found between water capture and root density and described by a model the parameters of which varied between crops, indicating a variable soil water capture for a given root density. Conclusions: This study provides quantitative information required to simulate the impact of bioenergy crops on drainage and aquifer loading. Springer International Publishing Switzerland, 2014 Bioenergy nationallicence Energy crops nationallicence Soil water nationallicence Root system nationallicence Miscanthus nationallicence Switchgrass nationallicence I : Irrigation nationallicence P : Precipitation nationallicence PET : Potential evapotranspiration nationallicence PWC : Proportional water capture nationallicence RID : Root intersection density nationallicence RLD : Root length density nationallicence RMSE : Root mean square error nationallicence SWC : Soil water content nationallicence SWD : Soil water deficit nationallicence Ferchaud Fabien INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut Vitte Guillaume INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut Bornet Frédéric INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut Strullu Loïc INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut Mary Bruno INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 307-322 0032-079X 388:1-2<307 2015 388 11104 https://doi.org/10.1007/s11104-014-2335-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2335-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ferchaud Fabien INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut NATIONALLICENCE 700 1- Vitte Guillaume INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut NATIONALLICENCE 700 1- Bornet Frédéric INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut NATIONALLICENCE 700 1- Strullu Loïc INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut NATIONALLICENCE 700 1- Mary Bruno INRA, UPR1158 AgroImpact, Site de Laon, Pôle du Griffon, 180 rue Pierre-Gilles de Gennes, 02000, Barenton-Bugny, France aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 307-322 0032-079X 388:1-2<307 2015 388 11104