About: Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands

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About: Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands Goto Sponge NotDistinct Permalink

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Description	Sap flow measurement techniques and evaluation of data are reviewed. Particular attention is paid to the trunk segment heat balance (THB) and heat field deformation (HFD) methods based on 30 years experience. Further elaboration of sap flow data is discussed in terms of integrating flow for whole stems from individual measuring points, considering variation of radial patterns in sapwood and variation around stems. Scaling up of data from sets of sample trees to entire forest stands based on widely available biometric data (partially on remote sensing images) is described and evaluated with a discussion of the magnitude of errors, the routine procedure applicable in any forest stand and practical examples. Sap flow measurement techniques and evaluation of data are reviewed. Particular attention is paid to the trunk segment heat balance (THB) and heat field deformation (HFD) methods based on 30 years experience. Further elaboration of sap flow data is discussed in terms of integrating flow for whole stems from individual measuring points, considering variation of radial patterns in sapwood and variation around stems. Scaling up of data from sets of sample trees to entire forest stands based on widely available biometric data (partially on remote sensing images) is described and evaluated with a discussion of the magnitude of errors, the routine procedure applicable in any forest stand and practical examples. (en) Byly diskutovány různé techniky měření transpiračního proudu. Na základě 30ti letých zkušeností byly kritickému zkoumání podrobeny především metoda tepelné bilance (THB) a metoda deformace tepelného pole (HFD) i následné vyhodnocování výsledků. Byly popsány moznosti zobecňování výsledků na lesní porost založené na široce dostupných biometrických datech a praktické příklady užití. (cs)
Title	Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands (en) Měření transpiračníh toku pomocí dvou thermodynamických metod, dynamika transpiračního toku a zobecnění výsledků na porost (cs)
skos:prefLabel	Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands Sap flow measurements with two thermodynamic methods, flow integration within trees and scaling up from sample trees to entire forest stands (en) Měření transpiračníh toku pomocí dvou thermodynamických metod, dynamika transpiračního toku a zobecnění výsledků na porost (cs)
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http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Čermák, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Lesnická a dřevařská fakulta
http://linked.open...dnocenehoVysledku	585455
http://linked.open...ai/riv/idVysledku	RIV/62156489:43410/04:00004576
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Evaluation of methods .; Heat balance; Heat field deformation (en)
http://linked.open.../riv/klicoveSlovo	Heat balance Heat field deformation Evaluation of methods .
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[84582A517FB2]
http://linked.open...i/riv/nazevZdroje	Trees
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http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	18
http://linked.open...iv/tvurceVysledku	Kučera, Jiří Čermák, Jan Nadyezhdina, Nadiya
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20434100005
issn	0931-1890
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