Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China

Abstract We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in sur...

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Autores principales:	Yun Zhang, Zhaochen Kong, Zhenjing Yang, Li Wang, Xiaohong Duan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5449bd562c2c457dbc1eb7f1dea04097
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spelling	oai:doaj.org-article:5449bd562c2c457dbc1eb7f1dea040972021-12-02T12:32:24ZSurface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China10.1038/s41598-017-00625-72045-2322https://doaj.org/article/5449bd562c2c457dbc1eb7f1dea040972017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00625-7https://doaj.org/toc/2045-2322Abstract We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in surface soil along two altitudinal transects allowed conclusions on vertical pollen dispersal from the alpine region of Dingqing County, Changdu district in Tibet. Discriminant analyses and detrended correspondence analysis (DCA) of 24 pollen taxa were used to further discuss the difference of modern pollen spectra in these alpine vegetation zones. The surface pollen assemblage is divided into three pollen zones, such as subalpine shrub meadow, montane coniferous forest and shrub steppe with sparse trees. Altitude and precipitation are two primary factors contributing to changes in surface pollen assemblage from alpine vegetation in the eastern Tibet. Large amounts of spruce pollen at higher elevations above the timberline might be introduced from lower elevations by upslope winds. Therefore, the interpretation of spruce pollen in the fossil record must take into account long distance upward wind transport. Moreover, the destruction of coniferous forest in the study area is well illustrated in the modern pollen rain.Yun ZhangZhaochen KongZhenjing YangLi WangXiaohong DuanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yun Zhang Zhaochen Kong Zhenjing Yang Li Wang Xiaohong Duan Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
description	Abstract We explore the relationship between modern pollen spectra and vegetation patterns in the Eastern Tibet, China in order to provide information on the representation of pollen taxa and improve the general knowledge of vertical pollen transport. Forty-two modern pollen samples collected in surface soil along two altitudinal transects allowed conclusions on vertical pollen dispersal from the alpine region of Dingqing County, Changdu district in Tibet. Discriminant analyses and detrended correspondence analysis (DCA) of 24 pollen taxa were used to further discuss the difference of modern pollen spectra in these alpine vegetation zones. The surface pollen assemblage is divided into three pollen zones, such as subalpine shrub meadow, montane coniferous forest and shrub steppe with sparse trees. Altitude and precipitation are two primary factors contributing to changes in surface pollen assemblage from alpine vegetation in the eastern Tibet. Large amounts of spruce pollen at higher elevations above the timberline might be introduced from lower elevations by upslope winds. Therefore, the interpretation of spruce pollen in the fossil record must take into account long distance upward wind transport. Moreover, the destruction of coniferous forest in the study area is well illustrated in the modern pollen rain.
format	article
author	Yun Zhang Zhaochen Kong Zhenjing Yang Li Wang Xiaohong Duan
author_facet	Yun Zhang Zhaochen Kong Zhenjing Yang Li Wang Xiaohong Duan
author_sort	Yun Zhang
title	Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_short	Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_full	Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_fullStr	Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_full_unstemmed	Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China
title_sort	surface pollen distribution from alpine vegetation in eastern tibet, china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5449bd562c2c457dbc1eb7f1dea04097
work_keys_str_mv	AT yunzhang surfacepollendistributionfromalpinevegetationineasterntibetchina AT zhaochenkong surfacepollendistributionfromalpinevegetationineasterntibetchina AT zhenjingyang surfacepollendistributionfromalpinevegetationineasterntibetchina AT liwang surfacepollendistributionfromalpinevegetationineasterntibetchina AT xiaohongduan surfacepollendistributionfromalpinevegetationineasterntibetchina
_version_	1718394093754646528

Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China

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