Original title: Atmospheric factors influencing net ecosystem production of Norway spruce forest in Beskydy Mountains
Authors: Taufarová, Klára ; Havránková, Kateřina ; Czerný, Radek ; Janouš, Dalibor
Document type: Papers
Conference/Event: Bioklimatologické aspekty hodnocení procesů v krajině, Mikulov (CZ), 2008-09-09 / 2008-09-11
Year: 2008
Language: eng
Abstract: Daily net ecosystem production values of Norway spruce forest at Experimental Ecological Research Site Bílý Kříž in Beskydy Mountains were estimated using eddy covariance technique. Norway spruce forest uptakes CO2 from the atmosphere during production season. During production seasons 2005-2007 mean daily net ecosystem production was 22 kg C ha-1, and mean production season duration was 240 days. During production seasons there occurred days with respiration higher than assimilation, thus the forest was source of the atmospheric carbon. There were 45, 68 and 39 days in production seasons 2005, 2006 and 2007, respectively, when the forest was carbon source. It was caused by 1) significant decrease of air temperature and low intensity of PAR at the beginning and end of production seasons; 2) low radiation in overcast days and 3) long dry period with high intensity of direct radiation and high air temperature during production seasons.
Keywords: atmospheric factors; daily net ecosystem production; eddy covariance
Project no.: 2B06068 (CEP), SP/2D1/93/07 (CEP)
Funding provider: GA MŠk, GA MŽP
Host item entry: Sborník příspěvků z mezinárodní konference "Bioklimatologické aspekty hodnocení procesů v krajině", ISBN 978-80-86690-55-1

Institution: Global Change Research Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0192880

Permalink: http://www.nusl.cz/ntk/nusl-42358


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