The role of climate-fuel feedbacks on Holocene biomass burning in upper- montane Carpathian forests

0533898 - BÚ 2021 RIV NL eng J - Článek v odborném periodiku
Carter, V. A. - Bobek, Přemysl - Moravcová, A. - Šolcová, Anna - Chiverrell, R. C. - Clear, J. L. - Finsinger, W. - Feurdean, A. - Tanţău, I. - Magyari, E. - Brussel, T. - Kuneš, P.
The role of climate-fuel feedbacks on Holocene biomass burning in upper- montane Carpathian forests.
Global and Planetary Change. Roč. 193, OCT 2020 (2020), s. 1-17, č. článku 103264. ISSN 0921-8181. E-ISSN 1872-6364
Institucionální podpora: RVO:67985939
Klíčová slova: fire * Holocene * Carpathians
Obor OECD: Plant sciences, botany
Impakt faktor: 5.114, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.gloplacha.2020.103264

Over the past few decades, mean summer temperatures within the Carpathian Mountains have increased by as much as 2 °C leading to a projected increased forest fire risk. Currently, there are no paleofire records from the Western Carpathians that provide the long-term range of natural variability to contextualise the response of upper-montane forests to future environmental change and disturbance regimes. We present the first high-re- solution Holocene fire history record from the upper-montane ecotone from the High Tatra Mountains, Slovakia, as well as provide a regional synthesis of pan-Carpathian drivers of biomass burning in upper-montane forests. Our results illustrate that forest composition and density both greatly influence biomass burning, creating two different climate-fuel feedbacks. First, warmer conditions in the early Holocene, coupled with generally higher abundances of Pinus sp., either P. cembra and/or P. mugo/sylvestris, created a positive climate-fuel relationship that resulted in higher amounts of biomass burning. Second, cooler and wetter late Holocene conditions led to denser Picea abies upper-montane forests, creating a negative climate-fuel feedback that reduced biomass burning in upper-montane forests across the Carpathians. Given that warmer and drier conditions are expected across the entire Carpathian region in the future, our results illustrate how future climate change could po- tentially create a positive climate-fuel relationship within upper-montane forests dominated by Picea abies and Pinus cembra and/or P. mugo/sylvestris.
Trvalý link: http://hdl.handle.net/11104/0312462