Arid
DOI10.1177/0959683612449762
Application and limitations of the Artemisia/Chenopodiaceae pollen ratio in arid and semi-arid China
Zhao, Yan1,2; Liu, Hongyan3; Li, Furong2; Huang, Xiaozhong2; Sun, Jinghui2; Zhao, Wenwei2; Herzschuh, Ulrike; Tang, Yu2
通讯作者Zhao, Yan
来源期刊HOLOCENE
ISSN0959-6836
EISSN1477-0911
出版年2012
卷号22期号:12页码:1385-1392
英文摘要

The Artemisia/Chenopodiaceae (A/C) ratio is assumed to be a useful index for reconstructing moisture changes in arid and semi-arid regions. Thorough modern pollen studies are still lacking to understand the reliability and limitation of A/C ratio as a moisture indicator, however. Here we review how well this ratio can be applied in arid and semi-arid China on the basis of new surface pollen data, previous data synthesis and other publications. Results indicate that variance in the A/C ratio can permit identification of modern vegetation types and that the A/C ratio generally has a positive relationship with annual precipitation. However, soil salinity, vegetation community composition, human activity and sample provenance (e.g. soil and lake sediments) will affect the values of the A/C ratio in different vegetation zones and therefore the A/C ratio is not comparable in different regions. We argue that the A/C ratio can only be used to reconstruct vegetation types and climate change in regions with precipitation < 450-500 mm, and in steppe, steppe desert and desert areas. Careful studies should be undertaken to understand the modern pollen-vegetation-climate relationships in various regions before using the A/C ratio to interpret vegetation and climate.


英文关键词A/C ratio climate variables dryland vegetation types
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000311422000004
WOS关键词HOLOCENE VEGETATION ; SURFACE POLLEN ; QAIDAM BASIN ; DESERT VEGETATION ; ALASHAN PLATEAU ; CLIMATE ; LAKE
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构兰州大学 ; 中国科学院地理科学与资源研究所 ; 北京大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/172712
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Lanzhou Univ, Lanzhou 730000, Peoples R China;
3.Beijing Univ, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Yan,Liu, Hongyan,Li, Furong,et al. Application and limitations of the Artemisia/Chenopodiaceae pollen ratio in arid and semi-arid China[J]. 兰州大学, 中国科学院地理科学与资源研究所, 北京大学,2012,22(12):1385-1392.
APA Zhao, Yan.,Liu, Hongyan.,Li, Furong.,Huang, Xiaozhong.,Sun, Jinghui.,...&Tang, Yu.(2012).Application and limitations of the Artemisia/Chenopodiaceae pollen ratio in arid and semi-arid China.HOLOCENE,22(12),1385-1392.
MLA Zhao, Yan,et al."Application and limitations of the Artemisia/Chenopodiaceae pollen ratio in arid and semi-arid China".HOLOCENE 22.12(2012):1385-1392.
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