Improvement of the trunk heat balance method including measurement of zero and reverse sap flows
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F12%3A00189990" target="_blank" >RIV/62156489:43410/12:00189990 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.agrformet.2012.07.009" target="_blank" >http://dx.doi.org/10.1016/j.agrformet.2012.07.009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.agrformet.2012.07.009" target="_blank" >10.1016/j.agrformet.2012.07.009</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Improvement of the trunk heat balance method including measurement of zero and reverse sap flows
Popis výsledku v původním jazyce
This paper deals with the theoretical analysis, numerical simulations and experimental measurements of temperature field for sap flow calculation based on xylem volume heating and is focused on the improvement of the trunk heat balance (THB) method. Thismethod has been successfully applied for many years in different field conditions and tree species. When using the classical equations applied by this method, calculation of sap flow (Fw) was done considering heat losses by sap flow and other losses expressed as so-called "fictitious flow" (Fw.fic), which is visible in the recorded data (Fw.rec). The aim of this work was to improve the accuracy of the THB method and properties of the measuring system to enable measurements of zero and reverse sap flow.The improvement of the accuracy was achieved by: (1) a more accurate evaluation of the fictitious flow similarly to the process used when working with the heat field deformation (HFD) method, (2) by considering of Fw.fic dependence on th
Název v anglickém jazyce
Improvement of the trunk heat balance method including measurement of zero and reverse sap flows
Popis výsledku anglicky
This paper deals with the theoretical analysis, numerical simulations and experimental measurements of temperature field for sap flow calculation based on xylem volume heating and is focused on the improvement of the trunk heat balance (THB) method. Thismethod has been successfully applied for many years in different field conditions and tree species. When using the classical equations applied by this method, calculation of sap flow (Fw) was done considering heat losses by sap flow and other losses expressed as so-called "fictitious flow" (Fw.fic), which is visible in the recorded data (Fw.rec). The aim of this work was to improve the accuracy of the THB method and properties of the measuring system to enable measurements of zero and reverse sap flow.The improvement of the accuracy was achieved by: (1) a more accurate evaluation of the fictitious flow similarly to the process used when working with the heat field deformation (HFD) method, (2) by considering of Fw.fic dependence on th
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
GK - Lesnictví
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2012
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Agricultural and Forest Meteorology
ISSN
0168-1923
e-ISSN
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Svazek periodika
166
Číslo periodika v rámci svazku
December
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
7
Strana od-do
120-126
Kód UT WoS článku
313479100013
EID výsledku v databázi Scopus
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