Redistribution of water within the aboveground part of trees

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F12%3A00215390" target="_blank" >RIV/62156489:43410/12:00215390 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Redistribution of water within the aboveground part of trees

Popis výsledku v původním jazyce

Recent progress in sap flow technique demonstrates that, together with transpiration, hydraulic redistribution processes, HR, are determinant in tree water relations. Without HR trees would not transpire at the rates observed in many environments and locations. Results from direct sap flow measurements conducted across the world demonstrate the widespread nature of HR by roots in the soil profile. However, information about redistribution of water in tree compartments is scarce. Reverse flow is known tobe a marker of HR occurrence in roots under low evaporative demand and in dry soil conditions. However, HR may also take place under high evaporative demand in tree tissues, when the driving forces significantly differ within the tree crown. HR then canbe characterized by asynchronous patterns of flow variation in the conducting xylem of tree organs. Several examples under natural and artificial conditions demonstrate such situation by records of sap flow in different xylem layers meas

Název v anglickém jazyce

Redistribution of water within the aboveground part of trees

Popis výsledku anglicky

Recent progress in sap flow technique demonstrates that, together with transpiration, hydraulic redistribution processes, HR, are determinant in tree water relations. Without HR trees would not transpire at the rates observed in many environments and locations. Results from direct sap flow measurements conducted across the world demonstrate the widespread nature of HR by roots in the soil profile. However, information about redistribution of water in tree compartments is scarce. Reverse flow is known tobe a marker of HR occurrence in roots under low evaporative demand and in dry soil conditions. However, HR may also take place under high evaporative demand in tree tissues, when the driving forces significantly differ within the tree crown. HR then canbe characterized by asynchronous patterns of flow variation in the conducting xylem of tree organs. Several examples under natural and artificial conditions demonstrate such situation by records of sap flow in different xylem layers meas

Druh

D - Stať ve sborníku

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GA526%2F08%2F1050" target="_blank" >GA526/08/1050: Struktura a funkce komplexu Quercus-Loranthus z hlediska možností potlačení významného korunového škůdce doubrav</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Horticulturae 951

ISBN

978-90-6605-358-8

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

241-250

Název nakladatele

International Society for Horticultural Science

Místo vydání

Leuven

Místo konání akce

Volterra

Datum konání akce

8. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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