Seasonal variation of water uptake of a Quercus suber tree in Central Portugal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F08%3A00111058" target="_blank" >RIV/62156489:43410/08:00111058 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Seasonal variation of water uptake of a Quercus suber tree in Central Portugal
Original language description
Hydraulic redistribution (HR) is the phenomenon where plant roots transfer water between soil horizons of different water potential. When dry soil is a stronger sink for water loss from the plant than transpiration, water absorbed by roots in wetter soilhorizons is transferred toward, and exuded into dry soil via flow reversals through the roots. Reverse flow is a good marker of HR and can serve as a useful tool to study it over the long-term. Seasonal variation of water uptake of a Quercus suber treewas studied from late winter through autumn 2003 at Rio Frio near Lisbon, Portugal. Sap flow was measured in five small shallow roots (diameter of 3-4 cm), 1 to 2 m from the tree trunk and in four azimuths and at different xylem depths at the trunk base,using the heat field deformation method (HFD). The pattern of sap flow differed among lateral roots as soil dried with constant positive flow in three roots and reverse flow in two other roots during the night when transpiration ceased.
Czech name
Sezonní variabilita příjmu vody u korkového dubu ve středním Portugalsku
Czech description
Stuie popisuje hydraulickou redistribuci mezi kořeny a půdou u korkoveho dubu ve střednim Porugalsku za podmínek různého zásobení vodou.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EF - Botany
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant and soil : international journal on plant - soil relationships
ISSN
0032-079X
e-ISSN
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Volume of the periodical
305
Issue of the periodical within the volume
2
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
15
Pages from-to
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UT code for WoS article
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EID of the result in the Scopus database
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