Detailed Information on Publication Record
2005
Seasonal variability of photosynthetically active radiation incident on vegetation cover at Vernadsky Station, Galindez Island, Antarctica
LÁSKA, Kamil, Miloš BARTÁK, Pavel PROŠEK, Evgenyi NAKALOV, Gennadi MILINEVSKY et. al.Basic information
Original name
Seasonal variability of photosynthetically active radiation incident on vegetation cover at Vernadsky Station, Galindez Island, Antarctica
Name in Czech
Sezónní proměnlivost fotosynteticky aktivního záření dopadajícího na povrch vegetace na stanici Vernadsky, ostrov Galindez, Antarktida
Authors
LÁSKA, Kamil (203 Czech Republic, guarantor), Miloš BARTÁK (203 Czech Republic), Pavel PROŠEK (203 Czech Republic), Evgenyi NAKALOV (804 Ukraine) and Gennadi MILINEVSKY (804 Ukraine)
Edition
Brno, PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research, p. 115-115, 1 pp. 2005
Publisher
Masarykova univerzita, Brno
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14310/05:00022712
Organization unit
Faculty of Science
ISBN
80-210-3762-8
Keywords in English
Antarctic oases; microclimate; global solar radiation; PAR; snow cover; moss carpets; lichens;
Tags
International impact, Reviewed
Změněno: 30/6/2008 15:45, doc. Mgr. Kamil Láska, Ph.D.
V originále
The possible effect of light regime on physiologically active time of moss and lichens cover was evaluated with using of PAR, global solar radiation, surface and soil temperature data at the both stands. The daily sums of the incoming solar radiations fluctuated greatly according to changes in the weather conditions, and essentially replicated the high variability of the cloudiness. During the summer season (October - March) was determined 57 days with the PAR values higher than 1500 umol.m-2.s-1 and only 13 days with the PAR values exceeded the level of 2000 umol.m-2.s-1. The PAR of 2000 umol.m-2.s-1 and higher often occurred for short-time interval of 10 or 20 min within a day. Only in one case (17 December), the level of 2000 umol.m-2.s-1 had a duration over 40 min. Due to PAR reflection from episodic snow deposition on the vegetation surface during summer season, the true number with high PAR incident on the lichens and mosses was reduced.
In Czech
The possible effect of light regime on physiologically active time of moss and lichens cover was evaluated with using of PAR, global solar radiation, surface and soil temperature data at the both stands. The daily sums of the incoming solar radiations fluctuated greatly according to changes in the weather conditions, and essentially replicated the high variability of the cloudiness. During the summer season (October - March) was determined 57 days with the PAR values higher than 1500 umol.m-2.s-1 and only 13 days with the PAR values exceeded the level of 2000 umol.m-2.s-1. The PAR of 2000 umol.m-2.s-1 and higher often occurred for short-time interval of 10 or 20 min within a day. Only in one case (17 December), the level of 2000 umol.m-2.s-1 had a duration over 40 min. Due to PAR reflection from episodic snow deposition on the vegetation surface during summer season, the true number with high PAR incident on the lichens and mosses was reduced.
Links
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