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.Základní údaje
Originální název
Seasonal variability of photosynthetically active radiation incident on vegetation cover at Vernadsky Station, Galindez Island, Antarctica
Název česky
Sezónní proměnlivost fotosynteticky aktivního záření dopadajícího na povrch vegetace na stanici Vernadsky, ostrov Galindez, Antarktida
Autoři
LÁSKA, Kamil (203 Česká republika, garant), Miloš BARTÁK (203 Česká republika), Pavel PROŠEK (203 Česká republika), Evgenyi NAKALOV (804 Ukrajina) a Gennadi MILINEVSKY (804 Ukrajina)
Vydání
Brno, PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research, od s. 115-115, 1 s. 2005
Nakladatel
Masarykova univerzita, Brno
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10500 1.5. Earth and related environmental sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/05:00022712
Organizační jednotka
Přírodovědecká fakulta
ISBN
80-210-3762-8
Klíčová slova anglicky
Antarctic oases; microclimate; global solar radiation; PAR; snow cover; moss carpets; lichens;
Štítky
Příznaky
Mezinárodní význam, Recenzováno
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.
Česky
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.
Návaznosti
| MSM 143100007, záměr |
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