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Branch CO(2) efflux in vertical profile of Norway spruce tree

SYSNO ASEP	0360023
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Branch CO(2) efflux in vertical profile of Norway spruce tree
Author(s)	Acosta, Manuel (UEK-B)_{RID, ORCID, SAI} Pavelka, Marian (UEK-B)_{RID, ORCID, SAI} Tomášková, Ivana (UEK-B) Janouš, Dalibor (UEK-B)_{RID, SAI}
Number of authors	4
Source Title	European Journal of Forest Research. - : Springer - ISSN 1612-4669 Roč. 130, č. 4 (2011), s. 649-656
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	branch CO2 efflux ; branch diameter increment ; sap flow ; temperature ; Q10 value ; woody tissue
Subject RIV	GK - Forestry
R&D Projects	2B06068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z60870520 - UEK-B (2005-2011)
UT WOS	000291170800016
DOI	10.1007/s10342-010-0456-2
Annotation	Branch CO2 efflux of Norway spruce tree was measured in ten branches at five whorls during the growing season 2004 in campaigns of 3–4 times per month at the Beskydy Mts., the Czech Republic. Branch woody-tissue temperature was measured continuously in 10-min intervals for each sample position during the whole experiment period. Q10 and normalized CO2 efflux rate (E10–CO2 efflux rate at 10°C) was calculated for each sampled position. Estimated Q10 ranged from 2.12 to 2.89, and E10 ranged from 0.41 to 1.19 μmolCO2m−2s−1. East-side branches had higher efflux rate than west-side branches. The highest CO2 efflux rate values were measured in August and the lowest in October, which corresponds with woody-tissue temperature and growth processes during these periods. CO2 efflux was significantly and positively correlated with branch position within canopy and temperature. Branches from the upper whorls showed higher CO2 efflux activity and seasonal dynamics than branches from the lower whorls.
Workplace	Global Change Research Institute
Contact	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Year of Publishing	2012

Number of the records: 1