Počet záznamů: 1
Analysis of floodplain forest sensitivity to drought
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SYSNO ASEP 0511528 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Analysis of floodplain forest sensitivity to drought Tvůrce(i) Kowalska, Natalia (UEK-B) SAI, ORCID, RID
Szatniewska, Justyna (UEK-B) SAI, RID, ORCID
Stojanović, Marko (UEK-B) ORCID, RID, SAI
Šigut, Ladislav (UEK-B) RID, ORCID, SAI
Pavelka, Marian (UEK-B) RID, ORCID, SAIZdroj.dok. Geophysical Research Abstracts, 21. - : European geoscience union, 2019 Poč.str. 1 s. Akce EGU General Assembly Conference 2019 Datum konání 07.04.2019 - 12.04.2019 Místo konání Vídeň Země AT - Rakousko Typ akce EUR Jazyk dok. eng - angličtina Země vyd. AT - Rakousko Klíč. slova drought ; eddy covariance ; floodplain forest Vědní obor RIV GK - Lesnictví Obor OECD Forestry Institucionální podpora UEK-B - RVO:86652079 Anotace Since a long time flooding occurs in Lnz very rarely, the last flooding event was in 2013. In addition, the site is hydrologically managed. Consequently, the water regime of the site changed over the years and represents nowadays relatively dry conditions for such type of ecosystem. Our main research goal is the evaluation of the floodplain forest sensitivity to drought at the Lanžhot site. Specifically, we plan to identify the sensitivity of the forest to drought regarding precipitation deficit, soil water potential, evapotranspiration demand, drought indices as well as the characteristics of forest Gross Primary Production (GPP), Ecosystem Respiration (Reco) and Net Ecosystem Exchange (NEE) in comparison with the average of a reference period. The recent fluxes of greenhouse gases will be derived via the eddy covariance technique. Our study will be supported by dendrochronological measurements, which will, in combination with sap flow analysis, provide information about drought stress according to e.g. tree water deficit (∆W). Furthermore,
dendrometer measurements can be used for deriving stem diameter variations and basal area increment (BAI, cm2). Thereafter, BAI and SF are the basis for computing the growth water use efficiency of each tree species (WUEBAI=BAI/Q). Finally, we would like to reconstruct historical diameter breast height from tree ring width data in order to have input data for calculating the biomass (carbon sequestration) of the two most common tree species in Lanžhot, namely oak and ash, based on allometric equations developed specifically for this location. Studying this ecosystem will give a chance to extend our knowledge about the behavior of floodplain forests under ongoing changing climate with drier conditions. We plan to connect historical information derived via dendrochronological methods with current data and compare the results with other published studies
Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2020
Počet záznamů: 1