globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.03.015
论文题名:
Biomass-modulated fire dynamics during the last glacial-interglacial transition at the central pyrenees (Spain)
作者: Gil-Romera G.; González-Sampériz P.; Lasheras-Álvarez L.; Sevilla-Callejo M.; Moreno A.; Valero-Garcés B.; López-Merino L.; Carrión J.S.; Pérez Sanz A.; Aranbarri J.; García-Prieto Fronce E.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 402
起始页码: 113
结束页码: 124
语种: 英语
英文关键词: Fire history ; Historical biogeography ; Iberian peninsula ; Lateglacial ; Palaeoecology ; Quaternary
英文摘要: Understanding long-term fire ecology is essential for current day interpretation of ecosystem fire responses. However palaeoecology of fire is still poorly understood, especially at high-altitude mountain environments, despite the fact that these are fire-sensitive ecosystems and their resilience might be affected by changing fire regimes. We reconstruct wildfire occurrence since the Lateglacial (14.7. cal. ka BP) to the Mid-Holocene (6. cal. ka BP) and investigate the climate-fuel-fire relationships in a sedimentary sequence located at the treeline in the Central Spanish Pyrenees. Pollen, macro- and micro-charcoal were analysed for the identification of fire events (FE) in order to detect vegetation post-fire response and to define biomass-fire interactions. mean fire intervals (mfi) reduced since the Lateglacial, peaking at 9-7.7. cal. ka BP while from 7.7 to 6. cal. ka BP no fire is recorded. We hypothesise that Early Holocene maximum summer insolation, as climate forcing, and mesophyte forest expansion, as a fuel-creating factor, were responsible for accelerating fire occurrence in the Central Pyrenees treeline. We also found that fire had long-lasting negative effects on most of the treeline plant communities and that forest contraction from 7.7. cal. ka BP is likely linked to the ecosystem's threshold response to high fire frequencies. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69366
Appears in Collections:过去全球变化的重建

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作者单位: Quaternary Palaeoenvironments and Global Change Dept, Instituto Pirenaico de Ecología-CSIC, Campus Aula Dei, Avda. Montañana 1005, 50059 Zaragoza, Spain; Institute for the Environment, Brunel University, Uxbridge, London, Middlesex UB8 3PH, United Kingdom; Department of Plant Biology, Facultad de Biología, Universidad de Murcia, Campus del Espinardo, Murcia, Spain; Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Piazzale Aldo Moro, 5, 00185 Rome, Italy; Departamento de Estratigrafía y Paleontología, Universidad del Pais Vasco-Euskal Herriko Unibertsitatea, B. Sarriena s/n, Ap. 644, 48080 Bilbao, Spain

Recommended Citation:
Gil-Romera G.,González-Sampériz P.,Lasheras-Álvarez L.,et al. Biomass-modulated fire dynamics during the last glacial-interglacial transition at the central pyrenees (Spain)[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,402
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