Publication
Title
Leaf temperatures in glasshouses and open-top chambers
Author
Abstract
Climate manipulation experiments are of key importance in identifying possible responses of plant communities and ecosystems to climate change. Experiments for warming the air under sunlit conditions are carried out in (partial) enclosures. These inevitably alter the energy balance inside, potentially altering tissue temperatures which affect metabolism and growth. Using an empirically validated energy balance model, we investigate effects of two widely used warming methods, climate-controlled glasshouses and passively warmed open-top chambers (OTCs), on leaf temperatures. The model applies standard energy balance formulas, supplemented with data on optical properties of glasshouse materials and wind conditions inside OTCs. Results show that the different radiation environment inside glasshouses did not produce large leaf temperature deviations compared with outside. Poor glasshouse design with significant radiation blockage by the structure or with insufficient ventilation did affect tissue temperatures more significantly. The drastic wind speed reduction inside OTCs approximately doubled the actual (canopy) warming compared with earlier reported increases in air temperature provided by this technique an effect that was inflated if the plants stomates closed. These results demonstrate that leaf temperatures were higher than previously considered in OTCs but not in climate-controlled glasshouses.
Language
English
Source (journal)
New phytologist. - Oxford
Publication
Oxford : 2012
ISSN
0028-646X
Volume/pages
194:4(2012), p. 1155-1164
ISI
000303435400027
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
EXPEER - Distributed infrastructure for experimentation in ecosystem research.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 05.06.2012
Last edited 31.10.2017
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