Redistribution of water within the aboveground part of trees

Result code in 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>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Redistribution of water within the aboveground part of trees
Original language description
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
Czech name
—
Czech description
—

Project
<a href="/en/project/GA526%2F08%2F1050" target="_blank" >GA526/08/1050: Structure and function of the Quercus-Loranthus complex regarding to potential suppression of the important oak crown killer</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)