Comparison of CO2 and H2O fluxes over grassland vegetations measured by the eddy-covariance technique and by open system chamber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F07%3A00083584" target="_blank" >RIV/67179843:_____/07:00083584 - 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

Comparison of CO2 and H2O fluxes over grassland vegetations measured by the eddy-covariance technique and by open system chamber

Popis výsledku v původním jazyce

Measurements of CO2 fluxes were carried out using two different techniques -eddy covariance (EC) and open system gas exchange chamber (OC) during two years period at three different grassland sites. OC measurements were made during fourteen measurementscampaigns. We found good agreements between the OC and EC CO2 flux values (n=63, r2=0.5323, OC FCO2=-0.6408+0.9508EC). The OC FH2O values were consistently lower that those measured by the EC technique, probably caused by the air stream difference insideand outside the chamber. Adjusting flow rate within the chamber to the natural conditions would be necessary in future OC measurements. In comparison with EC, the OC proved to be a good tool for gas exchange measurements in grassland ecosystems.

Název v anglickém jazyce

Comparison of CO2 and H2O fluxes over grassland vegetations measured by the eddy-covariance technique and by open system chamber

Popis výsledku anglicky

Measurements of CO2 fluxes were carried out using two different techniques -eddy covariance (EC) and open system gas exchange chamber (OC) during two years period at three different grassland sites. OC measurements were made during fourteen measurementscampaigns. We found good agreements between the OC and EC CO2 flux values (n=63, r2=0.5323, OC FCO2=-0.6408+0.9508EC). The OC FH2O values were consistently lower that those measured by the EC technique, probably caused by the air stream difference insideand outside the chamber. Adjusting flow rate within the chamber to the natural conditions would be necessary in future OC measurements. In comparison with EC, the OC proved to be a good tool for gas exchange measurements in grassland ecosystems.

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Photosynthetica

ISSN

0300-3604

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

000247190100019

EID výsledku v databázi Scopus

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