Počet záznamů: 1
Assessing the Contrasting Effects of the Exceptional 2015 Drought on the Carbon Dynamics in Two Norway Spruce Forest Ecosystems
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SYSNO ASEP 0545772 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Assessing the Contrasting Effects of the Exceptional 2015 Drought on the Carbon Dynamics in Two Norway Spruce Forest Ecosystems Tvůrce(i) Mensah, Caleb (UEK-B) ORCID, SAI, ORCID
Šigut, Ladislav (UEK-B) RID, ORCID, SAI
Fischer, Milan (UEK-B) RID, ORCID, SAI
Foltýnová, Lenka (UEK-B) ORCID, SAI, RID
Jocher, Georg (UEK-B) SAI, ORCID, RID
Acosta, Manuel (UEK-B) RID, ORCID, SAI
Kowalska, Natalia (UEK-B) SAI, ORCID, RID
Kokrda, Lukas (UEK-B) SAI, ORCID, RID
Pavelka, Marian (UEK-B) RID, ORCID, SAI
Marshall, John David (UEK-B) RID, SAI
Nyantakyi, E. K. (GH)
Marek, Michal V. (UEK-B) RID, ORCID, SAICelkový počet autorů 12 Číslo článku 988 Zdroj.dok. Atmosphere. - : MDPI
Roč. 12, č. 8 (2021)Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova eddy covariance technique ; climate-change ; atmospheric demand ; water dynamics ; respiration ; exchange ; heat ; temperature ; sensitivity ; fluxes ; climate change ; water stress ; soil moisture ; atmospheric evaporative demand ; eddy covariance ; gross primary productivity Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences CEP LM2018123 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_019/0000797 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF18_053/0016924 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 UT WOS 000688915600001 EID SCOPUS 85112378885 DOI 10.3390/atmos12080988 Anotace The occurrence of extreme drought poses a severe threat to forest ecosystems and reduces their capability to sequester carbon dioxide. This study analysed the impacts of a central European summer drought in 2015 on gross primary productivity (GPP) at two Norway spruce forest sites representing two contrasting climatic conditions-cold and humid climate at Bily Kriz (CZ-BK1) vs. moderately warm and dry climate at Rajec (CZ-RAJ). The comparative analyses of GPP was based on a three-year eddy covariance dataset, where 2014 and 2016 represented years with normal conditions, while 2015 was characterized by dry conditions. A significant decline in the forest GPP was found during the dry year of 2015, reaching 14% and 6% at CZ-BK1 and CZ-RAJ, respectively. The reduction in GPP coincided with high ecosystem respiration (R-eco) during the dry year period, especially during July and August, when several heat waves hit the region. Additional analyses of GPP decline during the dry year period suggested that a vapour pressure deficit played a more important role than the soil volumetric water content at both investigated sites, highlighting the often neglected importance of considering the species hydraulic strategy (isohydric vs. anisohydric) in drought impact assessments. The study indicates the high vulnerability of the Norway spruce forest to drought stress, especially at sites with precipitation equal or smaller than the atmospheric evaporative demand. Since central Europe is currently experiencing large-scale dieback of Norway spruce forests in lowlands and uplands (such as for CZ-RAJ conditions), the findings of this study may help to quantitatively assess the fate of these widespread cultures under future climate projections, and may help to delimitate the areas of their sustainable production. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2073-4433/12/8/988
Počet záznamů: 1