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Chamber techniques versus eddy covariance method during nighttime measurements

SYSNO ASEP	0341976
Document Type	G - Proceedings (int. conf.)
R&D Document Type	O - Ostatní
Title	Chamber techniques versus eddy covariance method during nighttime measurements
Title	Komorové techniky versus eddy kovariační metody během nočních měření
Author(s)	Pavelka, Marian (UEK-B)_{RID, ORCID, SAI} Sedlák, Pavel (UEK-B)_{RID, ORCID, SAI} Acosta, Manuel (UEK-B)_{RID, ORCID, SAI} Czerný, Radek (UEK-B)_{ORCID, SAI} Taufarová, Klára (UEK-B)_{RID, SAI} Janouš, Dalibor (UEK-B)_{RID, SAI}
Issue data	Zvolen: Slovak bioclimatological society, 2007
ISBN	978-80-228-1760-8
Number of pages	8 s.
Publication form	CD-Rom - CD-Rom
Action	Bioclimatology and natural hazards
Event date	17.09.2007-20.09.2007
VEvent location	Polana nad Detvou
Country	SK - Slovakia
Event type	EUR
Language	eng - English
Country	SK - Slovakia
Keywords	Eddy covariance ; Friction velocity ; chamber ; grassland ; net radiation
Subject RIV	EF - Botanics
R&D Projects	SM/640/18/03 GA MŽP - Ministry of Environment (MŽP)
	SM/630/2/03 GA MŽP - Ministry of Environment (MŽP)
CEZ	AV0Z60870520 - UEK-B (2005-2011)
Annotation	The parameter Q10 is commonly used to express the relationship between soil CO2 efflux and soil temperature. Soil surface CO2 efflux and soil temperature at different depths were measured in a 21-year-old Norway spruce stand and a mountain grassland site (Bily Kriz, Beskydy Mts., Czech Republic), using automated gasometric systems. A time-delay and goodness-of-fit between soil CO2 efflux and soil temperature at different measuring depths were determined. Wide ranges of values for the time-delay of CO2 efflux in response to temperature, Q10 and the determination coefficient (R2) between CO2 efflux and temperature were obtained. The values of Q10 and the CO2 time-delay increased with depth of soil temperature measurement point, while the R2 of the CO2-temperature relationship significantly decreased. Measurement of soil temperature at very shallow soil layer, preferably at the soil surface, is highly recommended to determine useable values of Q10.
Workplace	Global Change Research Institute
Contact	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Year of Publishing	2011

Number of the records: 1