About: Diurnal deviations in the relationship between CO2 efflux and temperature: A case study

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Manual measurements of soil CO2 efflux and continuously measured soil temperature can be used to model seasonal sums of carbon released from soil. The aims of this study were i) to determine differences in soil CO2 efflux and temperature measured at different times of day and night, ii) to assess how can the time of soil CO2 measurements bias the parameter of temperature sensitivity (Q10) of CO2 efflux, and iii) to compare seasonal sum of carbon released from soil as calculated from continuous measurement and from models based on measurements at different times. We subsampled continuous measurements of soil CO2 efflux and soil temperature according to the time of day when the measurements were made and these data sets were analysed. We found that different Q10 values were significantly different for each individual data set. Estimation of the total seasonal amount of released soil carbon based on models of individual data sets differed by as much as 7.2% from continuously measured data. The smallest difference between modelled and continuously measured CO2 efflux was observed at 20:00 and the highest at 04:00. The study shows that the times at which manual measurements are taken should be considered in the subsequent data processing. Manual measurements of soil CO2 efflux and continuously measured soil temperature can be used to model seasonal sums of carbon released from soil. The aims of this study were i) to determine differences in soil CO2 efflux and temperature measured at different times of day and night, ii) to assess how can the time of soil CO2 measurements bias the parameter of temperature sensitivity (Q10) of CO2 efflux, and iii) to compare seasonal sum of carbon released from soil as calculated from continuous measurement and from models based on measurements at different times. We subsampled continuous measurements of soil CO2 efflux and soil temperature according to the time of day when the measurements were made and these data sets were analysed. We found that different Q10 values were significantly different for each individual data set. Estimation of the total seasonal amount of released soil carbon based on models of individual data sets differed by as much as 7.2% from continuously measured data. The smallest difference between modelled and continuously measured CO2 efflux was observed at 20:00 and the highest at 04:00. The study shows that the times at which manual measurements are taken should be considered in the subsequent data processing. (en)
Title	Diurnal deviations in the relationship between CO2 efflux and temperature: A case study Diurnal deviations in the relationship between CO2 efflux and temperature: A case study (en)
skos:prefLabel	Diurnal deviations in the relationship between CO2 efflux and temperature: A case study Diurnal deviations in the relationship between CO2 efflux and temperature: A case study (en)
skos:notation	RIV/67179843:_____/14:00432664!RIV15-AV0-67179843
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0073), P(LM2010007)
http://linked.open...iv/cisloPeriodika	DEC
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Pavelka, Marian Dařenová, Eva Acosta, Manuel
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	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	11884
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/14:00432664
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	norway spruce forest; Q10; R10; soil respiration; chamber technique (en)
http://linked.open.../riv/klicoveSlovo	norway spruce forest chamber technique Q10 R10 soil respiration
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[DD89B7C35432]
http://linked.open...i/riv/nazevZdroje	CATENA
http://linked.open...in/vavai/riv/obor	DI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	CzeCOS/ICOS - National Infrastructure of Carbon Observation System CzechGlobe - Center for Global Climate Change Impacts Studies
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	123
http://linked.open...iv/tvurceVysledku	Acosta, Manuel Dařenová, Eva Pavelka, Marian
http://linked.open...ain/vavai/riv/wos	000343358600028
issn	0341-8162
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.catena.2014.08.008

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