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 ASEP0545772
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevAssessing 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
    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)
    Nyantakyi, E. K. (GH)
    Marek, Michal V. (UEK-B) RID, ORCID, SAI
    Celkový počet autorů12
    Číslo článku988
    Zdroj.dok.Atmosphere. - : MDPI
    Roč. 12, č. 8 (2021)
    Poč.str.16 s.
    Jazyk dok.eng - angličtina
    Země vyd.CH - Švýcarsko
    Klíč. slovaeddy 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 RIVDG - Vědy o atmosféře, meteorologie
    Obor OECDMeteorology and atmospheric sciences
    CEPLM2018123 GA MŠk - Ministerstvo školství, mládeže a tělovýchovy
    Výzkumná infrastrukturaCzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i.
    Způsob publikováníOpen access
    Institucionální podporaUEK-B - RVO:86652079
    UT WOS000688915600001
    EID SCOPUS85112378885
    DOI10.3390/atmos12080988
    AnotaceThe 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.
    PracovištěÚstav výzkumu globální změny
    KontaktNikola Audesová, audesova.n@czechglobe.cz, Tel.: 511 192 268
    Rok sběru2022
    Elektronická adresahttps://www.mdpi.com/2073-4433/12/8/988
Počet záznamů: 1