气候变化领域集成服务门户(CCPortal): Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet

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DOI	10.1016/j.ecolind.2023.110867
	Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet
	Ma, Qingfeng; Zhu, Liping; Yang, Ruimin; Huang, Lei; Wang, Junbo; Tang, Lingyu
发表日期	2023
ISSN	1470-160X
EISSN	1872-7034
卷号	154
英文摘要	Modern pollen distribution and its relationship to vegetation and climate in the lower Yarlung Zangbo River are investigated to provide a reference for paleoenvironmental reconstructions and to improve the understanding of pollen dispersal patterns in mountainous regions. Twenty-eight modern samples collected in moss polsters from 800 and 5400 m a.s.l. are used for palynological analysis. Our results indicate that palynological assemblages and indicator species from moss polsters can reflect the vertical distribution of vegetation belts. Abies, Picea and Pinus pollen from the upper forests and shrub meadow elements (Ericaceae, Cyperaceae and Polygonum) show strong abilities to be transported upward, whereas pollen (e.g. Macaranga, Alnus and Rutaceae) and spore (e.g. Athyrium, Cyatheaceae, Dicranopteris, Pteris) taxa from the lower evergreen forests show weak abilities to be transported upward. An unusual finding is that Tsuga pollen from the lower coniferous forest tends to be transported downslope, probably due to the intense spring rainfall and associated surface runoff in the study area. Due to its potential impact on the geographic range shifts of plants, pollen dispersal may be an additional factor to be considered in studies of vegetation change in the southeastern Tibetan Plateau, such as the projection of Abies or Picea treeline under climate warming. Furthermore, the redundancy analysis shows that precipitation and wind speed are the main factors influencing pollen distribution in the study area.
关键词	Pollen dispersal Mountain vegetation Indicator pollen lower Yarlung Zangbo River
英文关键词	SURFACE LAKE-SEDIMENTS; HUMAN IMPACT; CLIMATE; VEGETATION; PLATEAU; ASSEMBLAGES; MOUNTAINS; DATASET; SHIFTS; RAIN
WOS研究方向	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:001069033600001
来源期刊	ECOLOGICAL INDICATORS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283405
作者单位	Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Lanzhou University of Finance & Economics; Capital Normal University; Chinese Academy of Sciences; Nanjing Institute of Geology & Paleontology, CAS
推荐引用方式 GB/T 7714	Ma, Qingfeng,Zhu, Liping,Yang, Ruimin,et al. Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet[J]. 中国科学院青藏高原研究所,2023,154.
APA	Ma, Qingfeng,Zhu, Liping,Yang, Ruimin,Huang, Lei,Wang, Junbo,&Tang, Lingyu.(2023).Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet.ECOLOGICAL INDICATORS,154.
MLA	Ma, Qingfeng,et al."Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet".ECOLOGICAL INDICATORS 154(2023).