干旱区生态环境知识资源中心(Arid): Soil-surface pollen assemblages and quantitative relationships with vegetation and climate from the Inner Mongolian Plateau and adjacent mountain areas of northern China

Arid

DOI	10.1016/j.palaeo.2020.109600
	Soil-surface pollen assemblages and quantitative relationships with vegetation and climate from the Inner Mongolian Plateau and adjacent mountain areas of northern China
	Liu, Lina 1,2,3; Wang, Wei 1; Chen, Dongxue 1; Niu, Zhimei 1; Wang, Yuan 1; Cao, Xianyong 2,4; Ma, Yuzhen 5
通讯作者	Wang, Wei ; Cao, Xianyong
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2020
卷号	543
英文摘要	We statistically analyzed 396 soil-surface pollen samples from the Inner Mongolian Plateau and its adjacent mountain areas of northern China to gain insights into pollen-vegetation-climate. The results of indicator species analysis, canonical correspondence analysis (CCA) and boosted regression tree (BRT) analysis suggest that: 1) soil-surface pollen assemblages can differentiate between desert, steppe, meadow steppe, cool broadleaved forest, cool conifer forest, and temperate forest, but fail to differentiate between steppe and forest steppe; shrub and temperate forest; and temperate broadleaved forest, temperate mixed conifer-broadleaved forest, and eurythermic conifer forest; 2) pollen taxa, with low percentages but frequent occurrences, strongly indicate presence in the vegetation; 3) mean annual precipitation (MAP) is the most dominant variable influencing soil-surface pollen assemblages and the most promising climate variable for quantitative reconstructions. Weighted averaging partial least squares regression (WA-PLS), modern analogue technique (MAT), and boosted regression trees (BRT) were used to construct a series of pollen-climate calibration sets. WA-PLS and MAT outperform BRT under leave-one-out cross-validation. WA-PLS models are less susceptible to spatial auto-correlation than MAT models, making WA-PLS models generally the best choice. Our soil-surface pollen data will contribute to modern pollen data in eastern Asia.
英文关键词	Indicator species analysis Ordination BRT Calibration sets WA-PLS
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000518707600010
WOS关键词	ALASHAN PLATEAU ; HOLOCENE PRECIPITATION ; CALIBRATION SET ; PAST VEGETATION ; SUMMER MONSOON ; HUMAN IMPACT ; LAKE ; RECONSTRUCTIONS ; SEDIMENTS ; SELECTION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
来源机构	北京师范大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315278
作者单位	1.Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010021, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 5.Beijing Normal Univ, Fac Geog Sci, Sch Geog, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Liu, Lina,Wang, Wei,Chen, Dongxue,et al. Soil-surface pollen assemblages and quantitative relationships with vegetation and climate from the Inner Mongolian Plateau and adjacent mountain areas of northern China[J]. 北京师范大学, 中国科学院青藏高原研究所,2020,543.
APA	Liu, Lina.,Wang, Wei.,Chen, Dongxue.,Niu, Zhimei.,Wang, Yuan.,...&Ma, Yuzhen.(2020).Soil-surface pollen assemblages and quantitative relationships with vegetation and climate from the Inner Mongolian Plateau and adjacent mountain areas of northern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,543.
MLA	Liu, Lina,et al."Soil-surface pollen assemblages and quantitative relationships with vegetation and climate from the Inner Mongolian Plateau and adjacent mountain areas of northern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 543(2020).