Differential translucence method as a supplement to sap flow measurement in Norway spruce with symptoms of top dieback

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F13%3A00199511" target="_blank" >RIV/62156489:43410/13:00199511 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Differential translucence method as a supplement to sap flow measurement in Norway spruce with symptoms of top dieback
Original language description
In cases where sap flow is measured in trees and cross-sectional sapwood is not uniformly distributed, as in stems of diseased trees, an additional method may refine the sap flow measurements. If the studied trees are felled the modified differential translucence method (MDT) for quantifying sapwood distribution in cross-sectional area may be compared with sap flow measurements. We studied sap flow by the heat field deformation method (HFD) in 12 Norway spruce trees with visible dieback symptoms and 12without symptoms. Later, all sample trees were felled and analysed by MDT method. Results from MDT described well the differences and abnormalities which were also detected by HFD at any depth of the sapwood. Sap flow for whole tree (SF1) was calculatedin accordance with radial and circumferential variation of sap flow density detected by HFD (based on average sap flow radial profiles). Other sapwood disturbances in parts not covered by HFD measurements were later corrected by MDT and r
Czech name
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Czech description
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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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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)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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