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

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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

Czech name

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

Czech description

S využitím metody deformace tepelného pole byl sledován transpirační tok u dvou lip srdčitých (Tilia cordata Mill.). Oblast kmene, na kterou byla metoda aplikována, byla zároveň sledována pomocí infračervených senzorů. Výsledné porovnání přispělo k objasnění dynamiky transpiračního toku a potvrdilo moznosti metody deformace tepelného pole rychle reagovat na změnené podmínky v měřišti.

Type

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

CEP classification

GK - Forestry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

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

Name of the periodical

Annals of Forest Science

ISSN

1286-4560

e-ISSN

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Volume of the periodical

61

Issue of the periodical within the volume

1

Country of publishing house

FR - FRANCE

Number of pages

11

Pages from-to

203-213

UT code for WoS article

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EID of the result in the Scopus database

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