干旱区生态环境知识资源中心(Arid): Reliability of the Artemisia/Chenopodiaceae pollen ratio in differentiating vegetation and reflecting moisture in arid and semi-arid China

Arid

DOI	10.1177/0959683620902219
	Reliability of the Artemisia/Chenopodiaceae pollen ratio in differentiating vegetation and reflecting moisture in arid and semi-arid China
	Wang, Yuan 1,2,3; Wang, Wei 1,2,3; Liu, Lina 1,2,3; Jiang, Yajuan 1,2,3; Niu, Zhimei 1,2,3; Ma, Yuzhen 4; He, Jiang 1,2,3; Mensing, Scott A.5
通讯作者	Wang, Wei
来源期刊	HOLOCENE
ISSN	0959-6836
EISSN	1477-0911
出版年	2020
卷号	30 期号:6 页码:858-864
英文摘要	The reliability of the ratio between Artemisia and Chenopodiaceae pollen percentage (i.e. A/C) in differentiating vegetation and reflecting moisture conditions in arid and semi-arid regions has been disputed and this hindered its potential application in palaeoclimate reconstructions. In this paper, we investigated the A/C ratios of lake-centre surface sediment from 45 lakes in the Inner Mongolia Plateau and the Qaidam Basin in arid and semi-arid China, and numerically studied the relationships of A/C ratios with vegetation and moisture. We found that the A/C ratio of lake-centre surface sediments can be used as an effective index to differentiate desert and steppe and also can be used as a valid indicator to infer mean annual precipitation (MAP) in the Inner Mongolia Plateau and the Qaidam Basin in arid and semi-arid China. Moreover, the A/C ratio from lake-centre surface sediments is more reliable and robust than that of soil-surface samples in differentiating vegetation and reflecting moisture conditions, and this might be attributed to its larger pollen source area and regional representation. In addition, the (A - C)/(A + C) index helps to overcome the inherent weakness of non-linearity of the A/C ratio and may be useful in paleo-vegetation reconstruction. These findings provide useful references for pollen-based vegetation and climate reconstructions of lake cores in arid and semi-arid China.
英文关键词	A C ratio arid China lake-centre surface sediment moisture condition pollen reliability vegetation
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000512272200001
WOS关键词	CLIMATE CALIBRATION SET ; NORTHERN XINJIANG ; HOLOCENE CLIMATE ; TIBETAN PLATEAU ; LAKE-SEDIMENTS ; SURFACE POLLEN ; INNER-MONGOLIA ; QAIDAM BASIN ; RECORD ; RECONSTRUCTIONS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314662
作者单位	1.Inner Mongolia Univ, Sch Ecol & Environm, Minist Educ, Key Lab Ecol & Resource Use Mongolian Plateau, Hohhot 010021, Peoples R China; 2.Inner Mongolia Univ, Sch Ecol & Environm, Inner Mongolia Key Lab Grassland Ecol, Hohhot 010021, Peoples R China; 3.Inner Mongolia Univ, Inst Environm Geol, Hohhot, Peoples R China; 4.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; 5.Univ Nevada, Dept Geog, Reno, NV 89557 USA
推荐引用方式 GB/T 7714	Wang, Yuan,Wang, Wei,Liu, Lina,et al. Reliability of the Artemisia/Chenopodiaceae pollen ratio in differentiating vegetation and reflecting moisture in arid and semi-arid China[J]. 北京师范大学,2020,30(6):858-864.
APA	Wang, Yuan.,Wang, Wei.,Liu, Lina.,Jiang, Yajuan.,Niu, Zhimei.,...&Mensing, Scott A..(2020).Reliability of the Artemisia/Chenopodiaceae pollen ratio in differentiating vegetation and reflecting moisture in arid and semi-arid China.HOLOCENE,30(6),858-864.
MLA	Wang, Yuan,et al."Reliability of the Artemisia/Chenopodiaceae pollen ratio in differentiating vegetation and reflecting moisture in arid and semi-arid China".HOLOCENE 30.6(2020):858-864.