干旱区生态环境知识资源中心(Arid): Holocene atmospheric dust deposition in NW Spain

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DOI	10.1177/0959683619875193
	Holocene atmospheric dust deposition in NW Spain
	Martinez Cortizas, Antonio 1; Lopez-Costas, Olalla 1; Orme, Lisa 2; Mighall, Tim 3; Kylander, Malin E.4,5; Bindler, Richard 6; Gallego Sala, Angela 7
通讯作者	Martinez Cortizas, Antonio
来源期刊	HOLOCENE
ISSN	0959-6836
EISSN	1477-0911
出版年	2020
卷号	30 期号:4 页码:507-518
英文摘要	Atmospheric dust plays an important role in terrestrial and marine ecosystems, particularly those that are nutrient limited. Despite that most dust originates from arid and semi-arid regions, recent research has shown that past dust events may have been involved in boosting productivity in nutrient-poor peatlands. We investigated dust deposition in a mid-latitude, raised bog, which is surrounded by a complex geology (paragneiss/schist, granite, quartzite and granodiorite). As proxies for dust fluxes, we used accumulation rates of trace (Ti, Zr, Rb, Sr and Y) as well as major (K and Ca) lithogenic elements. The oldest, largest dust deposition event occurred between similar to 8.6 and similar to 7.4 ka BP, peaking at similar to 8.1 ka BP (most probably the 8.2 ka BP event). The event had a large impact on the evolution of the mire, which subsequently transitioned from a fen into a raised bog in similar to 1500 years. From similar to 6.7 to similar to 4.0 ka BP, fluxes were very low, coeval with mid-Holocene forest stability and maximum extent. In the late Holocene, after similar to 4.0 ka BP, dust events became more prevalent with relatively major deposition at similar to 3.2-2.5, similar to 1.4 ka BP and similar to 0.35-0.05 ka BP, and minor peaks at similar to 4.0-3.7, similar to 1.7, similar to 1.10-0.95 ka BP and similar to 0.74-0.58 ka BP. Strontium fluxes display a similar pattern between similar to 11 and similar to 6.7 ka BP but then became decoupled from the other elements from the mid Holocene onwards. This seems to be a specific signal of the granodiorite batholith, which has an Sr anomaly. The reconstructed variations in dust fluxes bear a strong climatic imprint, probably related to storminess controlled by North Atlantic Oscillation conditions. Complex interactions also arise because of increased pressure from human activities.
英文关键词	dust Holocene human activities NAO peat records storminess
类型	Article
语种	英语
国家	Spain ; Ireland ; Scotland ; Sweden ; England
开放获取类型	Green Accepted, Green Submitted
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000490675400001
WOS关键词	NORTH-ATLANTIC OSCILLATION ; TIERRA-DEL-FUEGO ; PEAT BOG ; IBERIAN PENINSULA ; TRACE-ELEMENTS ; SOIL-EROSION ; STORE MOSSE ; GREAT BOG ; CLIMATE ; PB
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318799
作者单位	1.Univ Santiago de Compostela, EcoPast Res Grp GI 1553, Santiago De Compostela, Spain; 2.Maynooth Univ, Dept Geog, Maynooth, Kildare, Ireland; 3.Univ Aberdeen, Sch Geosci, Aberdeen, Scotland; 4.Stockholm Univ, Dept Geol Sci, Stockholm, Sweden; 5.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden; 6.Umea Univ, Dept Ecol & Environm Sci, Umea, Sweden; 7.Univ Exeter, Dept Geog, Exeter, Devon, England
推荐引用方式 GB/T 7714	Martinez Cortizas, Antonio,Lopez-Costas, Olalla,Orme, Lisa,et al. Holocene atmospheric dust deposition in NW Spain[J],2020,30(4):507-518.
APA	Martinez Cortizas, Antonio.,Lopez-Costas, Olalla.,Orme, Lisa.,Mighall, Tim.,Kylander, Malin E..,...&Gallego Sala, Angela.(2020).Holocene atmospheric dust deposition in NW Spain.HOLOCENE,30(4),507-518.
MLA	Martinez Cortizas, Antonio,et al."Holocene atmospheric dust deposition in NW Spain".HOLOCENE 30.4(2020):507-518.