Počet záznamů: 1
Disentangling human-fire-climate linkages at mid-elevations in the Šumava Mountains of central Europe
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SYSNO ASEP 0557373 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Disentangling human-fire-climate linkages at mid-elevations in the Šumava Mountains of central Europe Tvůrce(i) Kraklow, V. (US)
Moravcová, A. (CZ)
Kuneš, P. (CZ)
Dreslerová, Dagmar (ARU-G) RID, SAI, ORCID
Finsinger, W. (FR)
Diaconu, A.-C. (RO)
Nývlt, D. (CZ)
Kadlec, M. (CZ)
Tinner, W. (CH)
Heurich, M. (DE)
Florescu, G. (RO)Celkový počet autorů 11 Zdroj.dok. EGU General Assembly 2021 (vEGU21: Gather Online). - Göttingen : European Geosciences Union, 2021 Poč.str. 1 s. Forma vydání Online - E Akce EGU General Assembly Conference 2021 Datum konání 19.04.2021 - 30.04.2021 Místo konání online Země DE - Německo Typ akce WRD Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova fire ; mid-mountains ; land use Vědní obor RIV AC - Archeologie, antropologie, etnologie Obor OECD Archaeology Institucionální podpora ARU-G - RVO:67985912 DOI 10.5194/egusphere-egu21-12821 Anotace To distinguish human-caused from naturally-caused fire regimes, palaeoecological records must demonstrate that observed changes in vegetation and fire are in response to changes in human activity rather than driven by natural climate-fire relationships. Here, we use a high-resolution multi-proxy approach (testate amoebae derived depth to water table (DWT), macro- and micro-charcoal, charcoal morphologies, pollen, non-pollen palynomorphs, plant macrofossils, and XRF) from Pékna, a mid-elevation peat bog situated near Lipno Reservoir - an area rich in human land use - to investigate human-driven vs. naturally-driven fire regimes in the Šumava Mountains. Our results span the entire Holocene and illustrate that humans have been consistently modifying the landscape since 5,500 cal yr BP. Specifically, during the mid-Holocene (7,000 – 4,000 cal yr BP) when water table was at its highest at Pékna, relatively frequent, low-severity fires occurred and was accompanied by the prolonged presence of coprophilous fungi, secondary human indicators and an opening of the forest, suggesting human activities. Human land use intensified ~1,500 cal yr BP as indicated by increases in primary human indicator species, an increase in early successional tree species (Pinus and Betula) indicating an opening of the forest canopy, and the development of regional mining is suggested by a marked increase in the concentration of lead (Pb). While water table depths decreased indicating drier conditions ~1,500 cal yr BP, local fires persisted, burning at low severities as indicated by the continued presence of charred herb macrofossils. The most intensive land use occurred in the last 500 years with the highest abundance of primary and secondary human indicator species, and coprophilious fungi. Locally, marked increases in the concentration of both redox-sensitive elements such as iron (Fe), calcium (Ca), sulphur (S), and chlorine (Cl), and detrital elements such as potassium (K), aluminum (Al) and Titanium (Ti) indicate major changes in the depositional environment over the last 500 years, possibly due to peat draining. However, this time period witnessed decreased biomass burning as a result of a more open landscape and less fuels to burn. These results contribute to a growing body of literature illustrating the importance of prehistoric impact in the mid-mountains of Central Europe. Pracoviště Archeologický ústav Praha Kontakt Lada Šlesingerová, slesingerova@arup.cas.cz, Tel.: 257 014 412 Rok sběru 2023 Elektronická adresa https://meetingorganizer.copernicus.org/EGU21/EGU21-12821.html
Počet záznamů: 1