Mapping the water pathways in stem xylem by sap flow measurements during branch severing experiments
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F13%3A00199513" target="_blank" >RIV/62156489:43410/13:00199513 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Mapping the water pathways in stem xylem by sap flow measurements during branch severing experiments
Popis výsledku v původním jazyce
The Heat Field Deformation (HFD) sap flow method proved to be a useful tool for analyzing whole-tree hydraulic architecture in trees. It measures sap flow rates, at different sapwood depths, with high time and space resolution. The response of multi-point sensors inserted in tree stems to manipulation experiments (such as branch severing) unravels the link between conducting xylem of stem and different foliage cohorts. The changes in the sap flow profile upon branch cuttings are easy to follow and interpret, especially when conducted under clear sky conditions. Based on experiments carried out in trees with different hydraulic architectures, we demonstrate the potentiality of the HFD method in the fast direct evaluation of the extent of the stem sapwood connected to each part of the crown and hence in the mapping of the water pathways between stem and crown. Such xylem maps may substantially contribute to the modeling of water transport in trees.
Název v anglickém jazyce
Mapping the water pathways in stem xylem by sap flow measurements during branch severing experiments
Popis výsledku anglicky
The Heat Field Deformation (HFD) sap flow method proved to be a useful tool for analyzing whole-tree hydraulic architecture in trees. It measures sap flow rates, at different sapwood depths, with high time and space resolution. The response of multi-point sensors inserted in tree stems to manipulation experiments (such as branch severing) unravels the link between conducting xylem of stem and different foliage cohorts. The changes in the sap flow profile upon branch cuttings are easy to follow and interpret, especially when conducted under clear sky conditions. Based on experiments carried out in trees with different hydraulic architectures, we demonstrate the potentiality of the HFD method in the fast direct evaluation of the extent of the stem sapwood connected to each part of the crown and hence in the mapping of the water pathways between stem and crown. Such xylem maps may substantially contribute to the modeling of water transport in trees.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
GK - Lesnictví
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Acta Horticulturae
ISSN
0567-7572
e-ISSN
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Svazek periodika
991
Číslo periodika v rámci svazku
28 May 2013
Stát vydavatele periodika
BE - Belgické království
Počet stran výsledku
8
Strana od-do
223-230
Kód UT WoS článku
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EID výsledku v databázi Scopus
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