Název:
Stomatal conductance of short rotation coppice based on sap flow measurements and its response to chosen meteorological variables
Autoři:
Orság, Matěj ; Trnka, Miroslav ; Fischer, Milan ; Kučera, J. ; Žalud, Zdeněk Typ dokumentu: Příspěvky z konference Konference/Akce: MendelNet 2012, Brno (CZ), 2012-11-21 / 2012-11-22
Rok:
2012
Jazyk:
eng
Abstrakt: The main aim of this study was to derive stomatal conductance (gs) from sap flow measurements and explore some of possible applications of this method. Sap-flow and other meteorological variables were continuously monitored in poplar-based short rotation coppice (SRC) plantation in Bystřice nad Pernštejnem during growing season 2012. Sap flow of 8 trees was measured using heat dissipation method, then expressed as transpiration per square meter of projection area and by adding into rewritten Penman-Monteith equation the canopy conductance (gs) was obtained. Compared with direct measurements on leaf level this approach is advantageous for obtaining gs, because of integrating all leaf categories of tree or whole canopy. Further analysis also proved, that gs is strongly driven by VPD. Finally, it was found that the relationship between gs and VPD is also influenced by available soil moisture content.
Klíčová slova:
canopy conductance; sap flow; short rotation coppice; transpiration Číslo projektu: ED1.1.00/02.0073, EE2.3.20.0248, LH12037 (CEP) Poskytovatel projektu: GA MŠk, GA MŠk, GA MŠk Zdrojový dokument: MendelNet 2012 - Proceedings of International Ph.D. Students Conference, ISBN 978-80-7375-656-7
Instituce: Ústav výzkumu globální změny AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0219351