干旱区生态环境知识资源中心(Arid): Impacts of snow on seed germination are independent of seed traits and plant ecological characteristics in a temperate desert of Central Asia

Arid

DOI	10.1007/s40333-020-0059-9
	Impacts of snow on seed germination are independent of seed traits and plant ecological characteristics in a temperate desert of Central Asia
	Anniwaer, Anlifeire; Su Yangui; Zhou Xiaobing; Zhang Yuanming
通讯作者	Zhang, YM
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2020
卷号	12 期号:5 页码:775-790
英文摘要	Seed germination profoundly impacts plant community composition within the plant life cycle. Snow is an important source of water for seed germination in the temperate deserts of Central Asia. Understanding how seed germination responds to variations in snow cover in relation to seed traits and plant ecological characteristics can help predict plant community sustainability and stability in Central Asia under a scenario climate change. This study investigated the seed germination of 35 plant species common to the Gurbantunggut Desert in Central Asia under the three snow treatments: (1) snow addition; (2) ambient snow; and (3) snow removal. Two-way analysis of variance (ANOVA) tests were performed to assess interactions among the impacts of snow treatments, seed traits and plant ecological characteristics on seed germination. Phylogenetic generalized least-squares (PGLS) model was used to test the relationships between seed traits and seed germination. The results demonstrated that snow variations had no significant impacts on seed germination overall. Seed germination under the snow addition treatment was similar with that under the ambient snow treatment, irrespective of seed traits and plant ecological characteristics. Snow removal only had negative impacts on seed germination for certain groups of seed traits and plant ecological characteristics. Seed mass positively affected seed germination, showing a linear increase of arcsin square root-transformed seed germination with log-transformed seed mass. Seed shape also profoundly impacted seed germination, with a higher germination percentage for elongated and flat seeds. Seed germination differed under different plant life forms, with semi-shrub species showing a significantly higher germination percentage. Most importantly, although snow treatments, seed traits and plant ecological characteristics had no interactive effects on seed germination overall, some negative impacts from the snow removal treatment were detected when seeds were categorized on the basis of seed mass and shape. This result suggests that variations of snow cover may change plant community composition in this temperate desert due to their impacts on seed germination.
英文关键词	snow cover seed germination seed traits plant life form Gurbantunggut Desert
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000575719800001
WOS关键词	ECOSYSTEM CARBON EXCHANGE ; COVER MANIPULATIONS ; EPHEMERAL PLANTS ; ALPINE MEADOW ; LIFE-HISTORY ; GROWTH ; SOIL ; MASS ; SHAPE ; PERSISTENCE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328329
作者单位	[Anniwaer, Anlifeire; Su Yangui; Zhou Xiaobing; Zhang Yuanming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Kay Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Anniwaer, Anlifeire] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Anniwaer, Anlifeire,Su Yangui,Zhou Xiaobing,et al. Impacts of snow on seed germination are independent of seed traits and plant ecological characteristics in a temperate desert of Central Asia[J]. 中国科学院新疆生态与地理研究所,2020,12(5):775-790.
APA	Anniwaer, Anlifeire,Su Yangui,Zhou Xiaobing,&Zhang Yuanming.(2020).Impacts of snow on seed germination are independent of seed traits and plant ecological characteristics in a temperate desert of Central Asia.JOURNAL OF ARID LAND,12(5),775-790.
MLA	Anniwaer, Anlifeire,et al."Impacts of snow on seed germination are independent of seed traits and plant ecological characteristics in a temperate desert of Central Asia".JOURNAL OF ARID LAND 12.5(2020):775-790.