Infra červené snímky transpiračního toku v kmenech lípy v přirozených a experimentálních podmínkách

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F04%3A00003969" target="_blank" >RIV/62156489:43410/04:00003969 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Infra-red images of sap flow in stems of lime trees under natural and experimental conditions.

Popis výsledku v původním jazyce

The heat field deformation method, HFD, for sap flow measurements was applied under field conditions simultaneously with the infra-red imaging of the smoothed stem surface in two lime (Tilia cordata Mill.) trees. Deformation of the heat field generated in the stems by the linear heater was measured by thermocouples, installed in axial and tangential directions around the heater in different xylem depths. The frontal and radial views of the heat field were visualized at the same time by the infra-red, IR, camera under conditions of zero-flow and moving sap. The IR-technique basically underlines the established interpretation of sap flow dynamics, but contributes by a more complex and visualized picture. The IR also shows directly the xylem anisotropy. The ability of HFD-method for measurements of bi-directional sap flow rates and flows approaching zero was confirmed by simultaneous comparing with IR-images. Fast responding and capabilities of HFD-method for studying tree architecture an

Název v anglickém jazyce

Infra-red images of sap flow in stems of lime trees under natural and experimental conditions.

Popis výsledku anglicky

The heat field deformation method, HFD, for sap flow measurements was applied under field conditions simultaneously with the infra-red imaging of the smoothed stem surface in two lime (Tilia cordata Mill.) trees. Deformation of the heat field generated in the stems by the linear heater was measured by thermocouples, installed in axial and tangential directions around the heater in different xylem depths. The frontal and radial views of the heat field were visualized at the same time by the infra-red, IR, camera under conditions of zero-flow and moving sap. The IR-technique basically underlines the established interpretation of sap flow dynamics, but contributes by a more complex and visualized picture. The IR also shows directly the xylem anisotropy. The ability of HFD-method for measurements of bi-directional sap flow rates and flows approaching zero was confirmed by simultaneous comparing with IR-images. Fast responding and capabilities of HFD-method for studying tree architecture an

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Annals of Forest Science

ISSN

1286-4560

e-ISSN

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Svazek periodika

61

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

11

Strana od-do

203-213

Kód UT WoS článku

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EID výsledku v databázi Scopus

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