Additional Information Derived from Detail Analysis of Raw Temperature Data Measured with the HFD-method
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Additional Information Derived from Detail Analysis of Raw Temperature Data Measured with the HFD-method
Popis výsledku v původním jazyce
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
Název v anglickém jazyce
Additional Information Derived from Detail Analysis of Raw Temperature Data Measured with the HFD-method
Popis výsledku anglicky
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
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
EF - Botanika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/QG60063" target="_blank" >QG60063: Douglaska tisolistá - nejvýznamnější introdukovaná dřevina v polyfunkčním a trvale udržitelném lesním hospodářství</a><br>
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2009
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Acta horticulturae
ISSN
0567-7572
e-ISSN
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Svazek periodika
846
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
BE - Belgické království
Počet stran výsledku
8
Strana od-do
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Kód UT WoS článku
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EID výsledku v databázi Scopus
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