干旱区生态环境知识资源中心(Arid): The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland

Arid

DOI	10.1186/s12870-022-03457-4
	The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland
	Wang, Chang-Shun; Wang, Hui-Qing; Wang, Wei; Liang, Cun-Zhu; Liu, Hua-Min; Wang, Li-Xin
通讯作者	Wang, LX (corresponding author)，Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010021, Inner Mongolia, Peoples R China.
来源期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
出版年	2022
卷号	22 期号:1
英文摘要	Background For better understanding the mechanism of Reaumuria soongarica community formation in a salt stressed grassland ecosystem, we designed a field experiment to test how leaves salt secretion changes the competitive relationship between species in this plant communities. Results Among the three species (R. soongarica, Stipa glareosa and Allium polyrhizum) of the salt stressed grassland ecosystem, the conductivity of R. soongarica rhizosphere soil was the highest in five soil layers (0-55 cm depth). The high soil conductivity can increase the daily salt secretion rate of plant leaves of R. soongarica. In addition, we found the canopy size of R. soongarica was positively related to the distance from S. glareosa or A. polyrhizum. The salt-tolerance of R. soongarica was significantly higher than the other two herbs (S. glareosa and A. polyrhizum). Moreover, there was a threshold (600 mu S/cm) for interspecific competition of plants mediated by soil conductivity. When the soil conductivity was lower than 600 mu S/cm, the relative biomass of R. soongarica increased with the soil conductivity increase. Conclusions The efficient salt secretion ability of leaves increases soil conductivity under the canopy. This leads the formation of a saline island of R. soongarica. Meanwhile R. soongarica have stronger salt tolerance than S. glareosa and A. polyrhizum. These promote the competitiveness of R. soongarica and inhibit interspecies competition advantage of the other two herbs (S. glareosa and A. polyrhizum) in the plant community. It is beneficial for R. soongarica to establish dominant communities in saline regions of desert grassland.
英文关键词	Stress tolerance Interspecies competition Tradeoff Soil conductivity Inner Mongolia
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:000761205500001
WOS关键词	PLANT INVASIONS ; SUCCESS ; STRATEGIES ; TOLERANCE ; ABILITY ; TRAITS ; LITTER ; LIMITS
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/2XILL650/376270
作者单位	[Wang, Chang-Shun; Wang, Hui-Qing; Wang, Wei; Liang, Cun-Zhu; Liu, Hua-Min; Wang, Li-Xin] Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010021, Inner Mongolia, Peoples R China; [Wang, Chang-Shun] Hulunbeir Coll, Sci Res Dept, Hulunbeir 021008, Inner Mongolia, Peoples R China; [Wang, Hui-Qing] Hulunbeir Meteorol Bur, Hulunbeir 021000, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chang-Shun,Wang, Hui-Qing,Wang, Wei,et al. The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland[J],2022,22(1).
APA	Wang, Chang-Shun,Wang, Hui-Qing,Wang, Wei,Liang, Cun-Zhu,Liu, Hua-Min,&Wang, Li-Xin.(2022).The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland.BMC PLANT BIOLOGY,22(1).
MLA	Wang, Chang-Shun,et al."The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland".BMC PLANT BIOLOGY 22.1(2022).