globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.04.016
论文题名:
Environmental history and vegetation dynamics in response to climate variations and human pressure during the Holocene in Bassa Nera, Central Pyrenees
作者: Garcés-Pastor S.; Cañellas-Boltà N.; Pèlachs A.; Soriano J.-M.; Pérez-Obiol R.; Pérez-Haase A.; Calero M.-A.; Andreu O.; Escolà N.; Vegas-Vilarrúbia T.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 479
起始页码: 48
结束页码: 60
语种: 英语
英文关键词: Charcoal ; Holocene ; Montane–subalpine shifts ; Pollen ; Pyrenees ; Sphagnum peat
英文摘要: With the aims of investigating the causes of environmental changes in high mountain ecosystems during the Holocene in relation to climate forcings and identifying thresholds for vegetation community shifts, we performed a multi-proxy palaeoecological reconstruction based on two sediment cores from Bassa Nera, a lentic system located close to the montane–subalpine ecotone in the Central Pyrenees. Using pollen, plant macroremains, charcoal, chemical elements and loss-on-ignition at centennial to decadal resolution, we reconstructed the vegetation and lacustrine dynamics during the last 10,000 years. A montane pollen ratio was used as a palaeoecological indicator to track altitudinal shifts in high mountain vegetation, which was compared to the ice-rafted debris index (IRD) as a proxy for summarizing the climatic influence of the North Atlantic Circulation. Our results show upward shifts of deciduous forest and its presence in Bassa Nera from the onset of the Holocene until 4200 cal yr BP, when it was replaced by coniferous taxa. The montane ratio showed a link between vegetation and North Atlantic influence, while changes in Sphagnum macroremains and aquatic taxa allowed description of local ontogenic changes from the initial pond to the present peatland. The loss-on-ignition record showed some flood events at Bassa Nera between 4500 and 3900 cal yr BP. The studied proxies allowed inferences concerning anthropic pressure in the catchment through grazing activities by 7300 cal yr BP and the appearance of cereal agriculture around 5190 cal yr BP. The highest human pressure occurred in the late Bronze Age, Roman Period and Middle Ages. © 2017 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67820
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: Department of Evolutionary Biology, Ecology and Environmental Sciences, Universitat de Barcelona, Barcelona, Spain; Department of Prehistory, Ancient History and Archaeology, Universitat de Barcelona, Barcelona, Spain; Department of Geography, Universitat Autònoma de Barcelona, Spain; Botany Unit, Department of Animal Biology, Plant Biology and Ecology, Universitat Autònoma de Barcelona, Spain; Institute of Earth Sciences Jaume Almera (ICTJA-CSIC), Barcelona, Spain; Catalan Institute of Paleontology Miquel Crusafont, Spain

Recommended Citation:
Garcés-Pastor S.,Cañellas-Boltà N.,Pèlachs A.,et al. Environmental history and vegetation dynamics in response to climate variations and human pressure during the Holocene in Bassa Nera, Central Pyrenees[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,479
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Garcés-Pastor S.]'s Articles
[Cañellas-Boltà N.]'s Articles
[Pèlachs A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Garcés-Pastor S.]'s Articles
[Cañellas-Boltà N.]'s Articles
[Pèlachs A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Garcés-Pastor S.]‘s Articles
[Cañellas-Boltà N.]‘s Articles
[Pèlachs A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.