干旱区生态环境知识资源中心(Arid): Artemisia pollen-indicated steppe distribution in southern China during the Last Glacial Maximum

Arid

DOI	10.3724/SP.J.1261.2013.00032
	Artemisia pollen-indicated steppe distribution in southern China during the Last Glacial Maximum
	Liu Hongyan; Liu Kan; Wei Fangling
通讯作者	Liu, HY
来源期刊	JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
ISSN	2095-3836
出版年	2013
卷号	2 期号:3 页码:297-305
英文摘要	The Last Glacial Maximum (LGM) was the coldest period during the previous 20,000 years. There have been different points of views on steppe distribution during the LGM period in southern China, partly due to the different interpretations of Artemisia occurrences. To make a reliable interpretation of the pollen fossil Artemisia, the modern distribution of Artemisia species and the relationship of pollen with climate and vegetation over a large spatial scale in China was thoroughly analyzed. Information about Artemisia species and pollen distributions used in this paper were collected from published works completed by other researchers as well as ourselves. The southern limit of steppe vegetation during the LGM period was interpreted from the published contour map of Artemisia pollen percentages during the LGM. Artemisia species in China are mostly distributed either in the horizontally distributed steppe regions or in the vertically distributed desert-steppe in the desert region, which indicates a cold and dry climate. The steppe is a distribution center of Artemisia pollen. Fractions of Artemisia in surface pollen assemblages are lower in both the desert and the temperate forest. Neither high Artemisia species cover nor high percentages of Artemisia pollen were found in the coast areas of China. Twenty-five percent of Artemisia pollen in sediments might indicate a local occurrence of steppe vegetation. Percentages of Artemisia pollen in the subtropical and tropical forest are less than 10%. A close relationship between Artemisia pollen and temperate steppe in China is demonstrated. The southern edge of the steppe vegetation during the LGM might be along the middle reach of the Yangtze River. Our results support the hypothesis that the isolated high fraction of Artemisia pollen along the northern edge of the South China Sea was transported from a large source area.
英文关键词	pollen steppe Artemisia Last Glacial Maximum LGM South China Sea
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000410397200005
WOS类目	Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Geology ; Paleontology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330487
作者单位	[Liu Hongyan; Liu Kan; Wei Fangling] Peking Univ, Coll Urban & Environm Sci, Dept Ecol & Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Liu Hongyan,Liu Kan,Wei Fangling. Artemisia pollen-indicated steppe distribution in southern China during the Last Glacial Maximum[J]. 北京大学,2013,2(3):297-305.
APA	Liu Hongyan,Liu Kan,&Wei Fangling.(2013).Artemisia pollen-indicated steppe distribution in southern China during the Last Glacial Maximum.JOURNAL OF PALAEOGEOGRAPHY-ENGLISH,2(3),297-305.
MLA	Liu Hongyan,et al."Artemisia pollen-indicated steppe distribution in southern China during the Last Glacial Maximum".JOURNAL OF PALAEOGEOGRAPHY-ENGLISH 2.3(2013):297-305.