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@article{1538296,
author = {Barták, Miloš and Láska, Kamil and Hájek, Josef and Váczi, Peter},
article_number = {1},
doi = {http://dx.doi.org/10.5817/CPR2019-1-8},
keywords = {James Ross Island; microclimate; manipulated environment; chamber effect; austral summer; ground warming; ecophysiology; lichens; moss},
language = {eng},
issn = {1805-0689},
journal = {Czech Polar Reports},
title = {Microclimate variability of Antarctic terrestrial ecosystems manipulated by open top chambers: Comparison of selected austral summer seasons within a decade},
url = {https://www.sci.muni.cz//CPR/17cislo/Bartak-OTC_web.pdf},
volume = {9},
year = {2019}
}
TY - JOUR
ID - 1538296
AU - Barták, Miloš - Láska, Kamil - Hájek, Josef - Váczi, Peter
PY - 2019
TI - Microclimate variability of Antarctic terrestrial ecosystems manipulated by open top chambers: Comparison of selected austral summer seasons within a decade
JF - Czech Polar Reports
VL - 9
IS - 1
SP - 88-106
EP - 88-106
PB - Masarykova univerzita
SN - 18050689
KW - James Ross Island
KW - microclimate
KW - manipulated environment
KW - chamber effect
KW - austral summer
KW - ground warming
KW - ecophysiology
KW - lichens
KW - moss
UR - https://www.sci.muni.cz//CPR/17cislo/Bartak-OTC_web.pdf
L2 - https://www.sci.muni.cz//CPR/17cislo/Bartak-OTC_web.pdf
N2 - Open top chambers (OTCs) were established in the northern part of the James Ross Island, Antarctic Peninsula, as a part of long-term program in January 2007. They were installed in two typical locations differing in vegetation cover. First group was set in a seashore ecosystem dominated by moss carpet supplemented with few lichen species. The other group was located on the top of a volcanic mesa (350 m a.s.l.) with irregular cover of lichens Usnea antarctica and Umbilicaria decussata. Temperature regimes inside and outside OTCs were continuously measured and related to year-round reference meteorological data. For majority of OTC installations, temperature increase caused by OTC was apparent in the period of September-March. Detailed analysis of chamber effect on the increase in air, surface, vegetation, and ground temperatures was done for late austral summer seasons of 2007 and 2008, and 10 years later, the seasons of 2017 and 2018. The OTC-induced temperature increase was more pronounced for mesa than seashore plot. For both locations, OTC-induced increase in temperature was highest for warm days with full sunshine and limited wind speed. On stormy days with overcast sky and high wind speed, the shift in temperature was smaller. Consequences of a long-term manipulation of Antarctic terrestrial ecosystems by OTCs for moss and lichen ecophysiology are discussed.
ER -
BARTÁK, Miloš, Kamil LÁSKA, Josef HÁJEK and Peter VÁCZI. Microclimate variability of Antarctic terrestrial ecosystems manipulated by open top chambers: Comparison of selected austral summer seasons within a decade. \textit{Czech Polar Reports}. Masarykova univerzita, 2019, vol.~9, No~1, p.~88-106. ISSN~1805-0689. Available from: https://dx.doi.org/10.5817/CPR2019-1-8.
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