About: Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation

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About: Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Increasing evidence about hydraulic redistribution (HR) and its ecological consequences is emerging. HR results from an interplay between competing plant and soil water potential gradients. In this work, stem-mediated HR was studied in a 53-year-old Douglas-fir tree during a period of drought. Sap flux density measurements using the heat field deformation method were performed at four locations: in two large opposing roots and on two sides of the tree stem. HR was induced by localised irrigation on one of the measured roots creating heterogeneous soil water conditions. Stem-mediated HR was detected during night-time conditions when water was redistributed from the wet side of the tree to the non-irrigated dry side. Beside stem-mediated HR, bi-directional flow in the dry root was also observed indicating radial sectoring in the xylem. It was observed that through stem-mediated HR Douglas-fir was unable to increase its transpiration despite the fact that sufficient water was available to one part of Increasing evidence about hydraulic redistribution (HR) and its ecological consequences is emerging. HR results from an interplay between competing plant and soil water potential gradients. In this work, stem-mediated HR was studied in a 53-year-old Douglas-fir tree during a period of drought. Sap flux density measurements using the heat field deformation method were performed at four locations: in two large opposing roots and on two sides of the tree stem. HR was induced by localised irrigation on one of the measured roots creating heterogeneous soil water conditions. Stem-mediated HR was detected during night-time conditions when water was redistributed from the wet side of the tree to the non-irrigated dry side. Beside stem-mediated HR, bi-directional flow in the dry root was also observed indicating radial sectoring in the xylem. It was observed that through stem-mediated HR Douglas-fir was unable to increase its transpiration despite the fact that sufficient water was available to one part of (en)
Title	Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation (en)
skos:prefLabel	Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localised irrigation (en)
skos:notation	RIV/62156489:43410/09:00142293!RIV10-MZE-43410___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(QG60063), Z(MSM6215648902)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Nadyezhdina, Naděžda Čermák, Jan Bequet, Rafael
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Lesnická a dřevařská fakulta
http://linked.open...dnocenehoVysledku	343799
http://linked.open...ai/riv/idVysledku	RIV/62156489:43410/09:00142293
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Douglas-fir; radial sap flux profile; water transport (en)
http://linked.open.../riv/klicoveSlovo	water transport Douglas-fir radial sap flux profile
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[8F219A26195E]
http://linked.open...i/riv/nazevZdroje	New Phytologist
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Douglas fir - the most important introduced species in multifunctional and sustainable forest management
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	184
http://linked.open...iv/tvurceVysledku	Čermák, Jan Nadyezhdina, Naděžda Ceulemans, Reinhart Steppe, Kathy Bequet, Rafael De Pauw, Dirk JW
http://linked.open...n/vavai/riv/zamer	Forest and Wood: the support of functionally integrated forest management and use of wood as a renewable raw material
issn	0028-646X
number of pages	12 (xsd:int)
http://localhost/t...ganizacniJednotka	43410

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