Sap flux - a real time assessment of health status in Norway spruce
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F16%3A43908332" target="_blank" >RIV/62156489:43410/16:43908332 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/02827581.2015.1130851" target="_blank" >http://dx.doi.org/10.1080/02827581.2015.1130851</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/02827581.2015.1130851" target="_blank" >10.1080/02827581.2015.1130851</a>
Alternative languages
Result language
angličtina
Original language name
Sap flux - a real time assessment of health status in Norway spruce
Original language description
Top dieback of Norway spruce (Picea abies), triggered by drought in 2004-2006, has been observed in Southeast Norway and trees died within four years after appearance of the first symptoms. The aim of our study was to use sap flux measurements as a diagnostic method for assessment of tree vitality. We used the heat field deformation method to monitor the sap flux density (SFD) in four pairs of healthy and declining trees in situ. To provide retrospective information on hydraulic performance of the trees we took samples for wood anatomical analysis. After felling the trees we used the modified differential translucence method (MDT) as a proxy for the SFD measurements. Healthy trees had three times higher SFD values as declining trees. In some healthy trees we detected decreasing SFD with time. The MDT method agreed with the SFD measurements. In conclusion, we detected sap flux dysfunction in declining trees and showed that the SFD reduction may occur during a short period, prior to occurrence of any visual symptoms. We suggest incorporating the SFD measurements into the repertoire of diagnostic tools in forest pathology.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GK - Forestry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/EE2.3.20.0265" target="_blank" >EE2.3.20.0265: Indicators of trees vitality</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scandinavian Journal of Forest Research
ISSN
0282-7581
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
5
Country of publishing house
SE - SWEDEN
Number of pages
8
Pages from-to
450-457
UT code for WoS article
000378019400002
EID of the result in the Scopus database
2-s2.0-84954472435