Počet záznamů: 1
Effect of measurement time of the day on the relationship between temperature and soil CO2 Efflux
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SYSNO ASEP 0366890 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Effect of measurement time of the day on the relationship between temperature and soil CO2 Efflux Tvůrce(i) Dařenová, Eva (UEK-B) RID, ORCID, SAI
Pavelka, Marian (UEK-B) RID, ORCID, SAI
Janouš, Dalibor (UEK-B) RID, SAICelkový počet autorů 3 Zdroj.dok. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. - : Mendelova univerzita - ISSN 1211-8516
Roč. 59, č. 6 (2011), s. 127-133Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova soil CO2 efflux ; R10 ; Q10 ; Picea abies ; seasonal carbon flux Vědní obor RIV EH - Ekologie - společenstva CEP SP/2D1/70/08 GA MŽP - Ministerstvo životního prostředí CEZ AV0Z60870520 - UEK-B (2005-2011) Anotace In this study we investigated effect of the time of the day when manual measurements of soil CO2 efflux are performed on estimates of seasonal sums of released carbon from the soil. We subsampled continuous measurement of soil CO2 efflux into six sets of data– 0 h, 4 h, 8 h, 12 h, 16 h and 20 h. To estimate seasonal carbon flux from the soil we used continuously measured soil temperature and parameters R10 and Q10 calculated from continuous measurements and from measurements taken at individual hours. Q10 calculated from 12 h and 16 h data were lower than Q10 calculated from continuous measurements. On the contrary, Q10 at 0 h, 4 h, 8 h and 20 h were higher.Seasonal carbon flux from the soil based on 0 h, 4 h and 8 h measurements was overestimated compare to the flux calculated from continuous measurements. On the contrary, measurements at 12 h, 16 h and 20 h measurements underestimated the carbon flux. The under- or overestimation was significant for 0 h, 4 h, 8 h and 20 h data sets. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2012
Počet záznamů: 1