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Solar controls of fire events during the past 600,000 years

Title data

Kappenberg, Arne ; Lehndorff, Eva ; Pickarski, Nadine ; Litt, Thomas ; Amelung, Wulf:
Solar controls of fire events during the past 600,000 years.
In: Quaternary Science Reviews. Vol. 208 (March 2019) . - pp. 97-104.
ISSN 0277-3791
DOI: https://doi.org/10.1016/j.quascirev.2019.02.008

Abstract in another language

Fires have accompanied terrestrial life from the beginning, yet with incomplete knowledge about feedback to paleoclimate and vegetation. Here, we have assessed how climate triggered the activity of vegetation fires in a 600,000 years continental record. We recorded benzene polycarboxylic acids as markers for burned organic carbon residues (BC) in sediments of Lake Van (Turkey), one of the oldest lacustrine archives currently available on Earth. Though fire and BC peaks were assumed to occur during dry climates, BC concentration and related fire temperatures were largest during periods of warm/humid climatic conditions. During humid periods, we recorded up to 45 mg BC per cm3 sediment (precipitation ∼ 800 mm/a), while BC amounts during dry climates were smaller by a factor of 10 (<5 mg BC per cm3 sediment, precipitation < 200 mm/a). Overall, BC concentration in Lake Van sediments paralleled that in other lake sediments. They all following orbital forcing, showing that fires events peak globally with a cyclicity of ∼100,000 years.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER151460
Institutions of the University: Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology > Chair Soil Ecology - Univ.-Prof. Dr. Eva Lehndorff
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 550 Earth sciences, geology
Date Deposited: 22 Jan 2020 14:02
Last Modified: 22 Jan 2020 14:04
URI: https://eref.uni-bayreuth.de/id/eprint/53849