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DOI	10.5194/cp-15-237-2019
	The 4.2 ka event in the vegetation record of the central Mediterranean
	Di Rita, Federico; Magri, Donatella
通讯作者	Di Rita, Federico
来源期刊	CLIMATE OF THE PAST
ISSN	1814-9324
EISSN	1814-9332
出版年	2019
卷号	15 期号:1 页码:237-251
英文摘要	In this paper, the variation in forest cover in the central Mediterranean region, reflected by percentage changes in the arboreal pollen record, has been examined in relation to the 4.2 ka event. A total of 36 well-dated and detailed pollen records from latitudes between 45 and 36 degrees N were selected and their vegetation dynamics between 5 and 3 ka examined in relation to the physiographic and climatic features of the study area and to the influence of human activity on past vegetation, as suggested by anthropogenic pollen indicators. We have found that the sites located between 43 and 45 degrees N do not show any significant vegetation change in correspondence with the 4.2 ka event. Several sites located on the Italian Peninsula between 39 and 43 degrees N show a marked opening of the forest, suggesting a vegetation response to the climate instability of the 4.2 ka event. Between 36 and 39 degrees N, a forest decline is always visible around 4.2 ka, and in some cases it is dramatic. This indicates that this region was severely affected by a climate change towards arid conditions that lasted a few hundred years and was followed by a recovery of forest vegetation in the Middle Bronze Age. Human activity, especially intense in southern Italy, may have been favored by this natural opening of vegetation. In Sardinia and Corsica, no clear change in vegetation is observed at the same time. We suggest that during the 4.2 ka event southern Italy and Tunisia were under the prevalent influence of a north African climate system characterized by a persistent high-pressure cell.
类型	Article
语种	英语
国家	Italy
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000458104000001
WOS关键词	NORTH-ATLANTIC OSCILLATION ; HOLOCENE ENVIRONMENTAL HISTORY ; CLIMATE-CHANGE ; CULTURAL LANDSCAPE ; LATE PLEISTOCENE ; FIRE HISTORY ; HUMAN IMPACT ; VARIABILITY ; MOUNTAINS ; APENNINES
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214916
作者单位	Sapienza Univ Rome, Dept Environm Biol, I-00185 Rome, Italy
推荐引用方式 GB/T 7714	Di Rita, Federico,Magri, Donatella. The 4.2 ka event in the vegetation record of the central Mediterranean[J],2019,15(1):237-251.
APA	Di Rita, Federico,&Magri, Donatella.(2019).The 4.2 ka event in the vegetation record of the central Mediterranean.CLIMATE OF THE PAST,15(1),237-251.
MLA	Di Rita, Federico,et al."The 4.2 ka event in the vegetation record of the central Mediterranean".CLIMATE OF THE PAST 15.1(2019):237-251.