干旱区生态环境知识资源中心(Arid): Responses of Ephemeral Plants to Precipitation Changes and Their Effects on Community in Central Asia Cold Desert

Arid

DOI	10.3390/plants12152841
	Responses of Ephemeral Plants to Precipitation Changes and Their Effects on Community in Central Asia Cold Desert
	Mu, Xiaohan; Zheng, Xinjun; Huang, Gang; Tang, Lisong; Li, Yan
通讯作者	Zheng, XJ ; Li, Y
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2023
卷号	12 期号:15
英文摘要	In the context of global climate change, changes in precipitation patterns will have profound effects on desert plants, particularly on shallow-rooted plants, such as ephemeral plants. Therefore, we conducted an experiment on artificial control of precipitation for four dominant ephemeral plants, Erodium oxyrhinchum, Alyssum linifolium, Malcolmia scorpioides, and Hyalea pulchella, in the southern edge of Gurbantunggut Desert. We measured the importance value and some growth parameters of the four species under increased or decreased precipitation and constructed trait correlation networks for each of the four species. We also compared the response of increased or decreased precipitation to vegetation coverage. The results show that drought significantly reduced the survival rate, seed production and weight, and aboveground biomass accumulation of ephemeral plants. The four ephemeral plants showed different tolerance and response strategies to precipitation changes. E. oxyrhinchum and M. scorpioides can avoid drought by accelerating life history, and E. oxyrhinchum, A. linifolium, and H. pulchella can alleviate the negative effects of drought by adjusting leaf traits. However, the response of different species to the wet treatment was not consistent. Based on the results of the trait correlation network, we consider A. linifolium belongs to the ruderal plant, E. oxyrhinchum and M. scorpioides belong to the competitive plants, and H. pulchella belongs to the stress-tolerant plant. The outstanding trait coordination ability of E. oxyrhinchum makes it show absolute dominance in the community. This indicate that ephemeral plants can adapt to precipitation changes to a certain extent, and that distinct competitive advantages in growth or reproduction enabled species coexistence in the same ecological niche. Nevertheless, drought significantly reduces their community cover and the ecological value of ephemeral plants. These findings established the basis to predict vegetation dynamics in arid areas under precipitation changes.
英文关键词	trait correlation networks desert drought precipitation change survival strategy
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001045655700001
WOS关键词	EXOGENOUS APPLICATION ; SPRING EPHEMERALS ; DROUGHT TOLERANCE ; LIFE-HISTORY ; WATER-STRESS ; GROWTH ; CLIMATE ; POPULATION ; DYNAMICS ; PATTERNS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398083
推荐引用方式 GB/T 7714	Mu, Xiaohan,Zheng, Xinjun,Huang, Gang,et al. Responses of Ephemeral Plants to Precipitation Changes and Their Effects on Community in Central Asia Cold Desert[J],2023,12(15).
APA	Mu, Xiaohan,Zheng, Xinjun,Huang, Gang,Tang, Lisong,&Li, Yan.(2023).Responses of Ephemeral Plants to Precipitation Changes and Their Effects on Community in Central Asia Cold Desert.PLANTS-BASEL,12(15).
MLA	Mu, Xiaohan,et al."Responses of Ephemeral Plants to Precipitation Changes and Their Effects on Community in Central Asia Cold Desert".PLANTS-BASEL 12.15(2023).