干旱区生态环境知识资源中心(Arid): Changes in vegetation and human-environment interactions during the Holocene in the Lake Pueyrredon area (Southern Patagonia)

Arid

DOI	10.1007/s00334-021-00854-x
	Changes in vegetation and human-environment interactions during the Holocene in the Lake Pueyrredon area (Southern Patagonia)
	Marcos, Maria A.; Bamonte, Florencia P.; Echeverria, Marcos E.; Sottile, Gonzalo D.; Mancini, Maria, V
通讯作者	Marcos, MA (corresponding author), Univ Nacl Mar del Plata, Lab Paleoecol & Palinol, Fac Ciencias Exactas & Nat, Dean Funes 3350,B7602AYL, Mar Del Plata, Buenos Aires, Argentina. ; Marcos, MA (corresponding author), Inst Invest Marinas & Costeras CONICET IIMyC CONI, Rodriguez Pena 4002-4100,B7602GSD, Mar Del Plata, Buenos Aires, Argentina.
来源期刊	VEGETATION HISTORY AND ARCHAEOBOTANY
ISSN	0939-6314
EISSN	1617-6278
出版年	2021-08
英文摘要	This paper reconstructs the vegetation history of the Lake Pueyrredon area during the Holocene and contextualizes the use of space and resources by hunter-gatherer groups according to palaeoenvironmental evolution. The pollen analysis of the Los Flamencos lake sequence is presented and integrated with local archaeological pollen data. Early Holocene vegetation consisted of a dwarf-shrub-grass steppe associated with cold conditions. From 7,600 cal bp a shrub vegetation with forest patches is inferred, suggesting a high moisture availability and possibly involving an eastwards displacement of the forest-steppe ecotone boundary. Human occupation, previously interrupted by the Hudson volcano eruption, and use of space is evident in this period. Between 6,600 and 5,400 cal bp an environmental change to drier conditions suggests a heterogeneous shrub steppe and the higher availability of floristic resources possibly used by hunter-gatherer groups. The predominance of shrub steppe with dwarf shrubs from 5,400 cal bp indicates more arid than current conditions, which correlates with a higher human-environment interaction related to changes in the lake configuration allowing new north-south circulation roads and vice versa, and major floristic resources availability. A decrease in dwarf-shrubs indicates a slight increase in moisture availability since 3,550 cal bp, suggesting a weakening of the westerly winds. The results indicate local and regional changes in vegetation linked mainly to moisture availability and Southern Westerly Winds fluctuations. The integration of pollen, archaeological and palaeogeographic information available and its comparison with other fossil records studied in Patagonia complement palaeoenvironmental reconstruction and explain the changes in a regional palaeoenvironmental framework.
英文关键词	Pollen Vegetation Palaeoenvironmental changes Moisture availability Human occupation
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000690711900001
WOS关键词	SANTA-CRUZ PROVINCE ; LATE PLEISTOCENE ; HEMISPHERE WESTERLIES ; NORTHERN PATAGONIA ; HUMAN OCCUPATION ; STEPPE ECOTONE ; POLLEN RECORD ; ARGENTINA ; DYNAMICS ; HISTORY
WOS类目	Plant Sciences ; Paleontology
WOS研究方向	Plant Sciences ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367558
作者单位	[Marcos, Maria A.; Bamonte, Florencia P.; Echeverria, Marcos E.; Sottile, Gonzalo D.; Mancini, Maria, V] Univ Nacl Mar del Plata, Lab Paleoecol & Palinol, Fac Ciencias Exactas & Nat, Dean Funes 3350,B7602AYL, Mar Del Plata, Buenos Aires, Argentina; [Marcos, Maria A.; Bamonte, Florencia P.; Echeverria, Marcos E.; Sottile, Gonzalo D.; Mancini, Maria, V] Inst Invest Marinas & Costeras CONICET IIMyC CONI, Rodriguez Pena 4002-4100,B7602GSD, Mar Del Plata, Buenos Aires, Argentina
推荐引用方式 GB/T 7714	Marcos, Maria A.,Bamonte, Florencia P.,Echeverria, Marcos E.,et al. Changes in vegetation and human-environment interactions during the Holocene in the Lake Pueyrredon area (Southern Patagonia)[J],2021.
APA	Marcos, Maria A.,Bamonte, Florencia P.,Echeverria, Marcos E.,Sottile, Gonzalo D.,&Mancini, Maria, V.(2021).Changes in vegetation and human-environment interactions during the Holocene in the Lake Pueyrredon area (Southern Patagonia).VEGETATION HISTORY AND ARCHAEOBOTANY.
MLA	Marcos, Maria A.,et al."Changes in vegetation and human-environment interactions during the Holocene in the Lake Pueyrredon area (Southern Patagonia)".VEGETATION HISTORY AND ARCHAEOBOTANY (2021).