Additional Information Derived from Detail Analysis of Raw Temperature Data Measured with the HFD-method

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F09%3A00132500" target="_blank" >RIV/62156489:43410/09:00132500 - 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

Additional Information Derived from Detail Analysis of Raw Temperature Data Measured with the HFD-method

Original language description

The HFD-method is based on the analysis of temperature differences (symmetrical (dTsym) and asymmetrical (dTas)) around a linear heater inserted in a tree stem. These temperature differences characterise the deformation of the heat field around the heater caused by the ascent of sap. Beyond sap flow calculated from the measured temperature differences, they are very informative for tree physiology studies. dTsym is also known as the sap flow index (SFI) which may be used as a stress indicator. The ability to measure this SFI with a HFD-sensor at several stem sapwood depths allows analysing the impact of different xylem layers in avoiding drought stress. Another important feature of the SFI is its relationship with daily diameter changes at the measuredspot. For an apple tree it was shown that SFI is proportionally related to the diameter changes during the day and inversely related during the night. Changes from proportional to inverse relationships occurred during SFI maxima, usually

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

<a href="/en/project/QG60063" target="_blank" >QG60063: Douglas fir - the most important introduced species in multifunctional and sustainable forest management</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Acta horticulturae

ISSN

0567-7572

e-ISSN

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Volume of the periodical

846

Issue of the periodical within the volume

1

Country of publishing house

BE - BELGIUM

Number of pages

8

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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