干旱区生态环境知识资源中心(Arid): Pollen dispersal and representation of the Forest Island within the Chinese desert-loess transitional zone

Arid

DOI	10.1016/j.revpalbo.2019.02.001
	Pollen dispersal and representation of the Forest Island within the Chinese desert-loess transitional zone
	Li, Dandan 1; Ma, Yuzhen 1; Meng, Hongwei 2; Guo, Chao 1; Hu, Caili 1; Liu, Jierui 1; Luo, Congwen 1; Wang, Kai 1
通讯作者	Ma, Yuzhen
来源期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN	0034-6667
EISSN	1879-0615
出版年	2019
卷号	263 页码:134-146
英文摘要	Vegetation reconstruction from fossil pollen records depends on an adequate understanding of the relationship between modern pollen and vegetation. In this study, we present the modern pollen dispersal and representation of the Forest Island and its surrounding areas within the Chinese desert-loess transitional zone. Forty-four pollen carpet traps, which imitate the natural pollen sediment process, were collected from the Ningxia Daluoshan Mountain and its surrounding areas along a southeast-northwest transect included five vegetation types. The pollen spectra, spatial distribution patterns of the main pollen types and discriminant analysis of pollen data show that: Pinus Diploxylon-type has high pollen production and good dispersal ability and that the over-represented, with values exceeding the 20% (>100 grains cm(-2) year(-1)) within vegetation dominated by Pinus tabuliformis, below 7% (<39 grains) when Pinus tabuliformis trees are absent. Picea has higher pollen production and a limited pollen dispersal ability via wind-borne dispersal, with values exceeding the 20% (>100 grains) within the spruce forest, decreased abruptly and even disappeared completely outside the forest. Another interesting finding of this study is that Poaceae have higher values and higher pollen production. The modern pollen assemblage of the desert steppe, mountain steppe and Picea crassifolia forest, but especially the desert steppe and mountain steppe, can be separated from each other as follows: (1) desert steppe: Chenopodiaceae-Poaceae pollen assemblage; (2) mountain steppe: Poaceae-Artemisia-Aster type pollen assemblage; and (3) Picea crassifolia forest: Picea-Artemisia-Poaceae pollen assemblage. However, overlap occurs between deciduous broadleaved shrubs and coniferous and broadleaved mixed forests. The very low concentration of deciduous broadleaved shrubs may due to an increased contribution of pine pollen. Our study may facilitate the confident use of fossil pollen data to reconstruct vegetation in the desert-loess transitional zone in China and may be able to be used to correctly interpret fossil pollen records from similar areas. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Chinese desert-loess transitional zone Forest Island Pollen carpet traps Pollen dispersal Discriminant analysis
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000466054700009
WOS关键词	SURFACE POLLEN ; PICEA POLLEN ; VEGETATION ; SPECTRA ; CLIMATE ; SAMPLES ; VALLEY ; ASSEMBLAGES ; EXAMPLES ; TRAPS
WOS类目	Plant Sciences ; Paleontology
WOS研究方向	Plant Sciences ; Paleontology
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/2XILL650/218470
作者单位	1.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 2.Yunnan Normal Univ, Sch Tourism & Geog Sci, Key Lab Plateau Geog Proc & Environm Change Yunna, Kunming 650500, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Li, Dandan,Ma, Yuzhen,Meng, Hongwei,et al. Pollen dispersal and representation of the Forest Island within the Chinese desert-loess transitional zone[J]. 北京师范大学,2019,263:134-146.
APA	Li, Dandan.,Ma, Yuzhen.,Meng, Hongwei.,Guo, Chao.,Hu, Caili.,...&Wang, Kai.(2019).Pollen dispersal and representation of the Forest Island within the Chinese desert-loess transitional zone.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,263,134-146.
MLA	Li, Dandan,et al."Pollen dispersal and representation of the Forest Island within the Chinese desert-loess transitional zone".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 263(2019):134-146.