干旱区生态环境知识资源中心(Arid): Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert-Oasis Ecotone

Arid

DOI	10.3389/fenvs.2022.937257
	Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert-Oasis Ecotone
	Li, Min; Xiao, Huijie; Xin, Zhiming; Li, Xing; Li, Junran; Miri, Abbas; Cao, Qiqi
通讯作者	Xiao, HJ
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2022
卷号	10
英文摘要	Understanding soil seed banks (SSBs) of Nitraria tangutorum nebkhas is critical for vegetation restoration and ecological management in desert-oasis ecotones. In this study, we conducted a survey in the field and a seed germination experiment in the laboratory to investigate the characteristics of SSB in different sizes and parts of nebkhas and to examine their relationship with aboveground vegetation. The results showed that there were 17 species of plants in six families in the SSB of Nitraria tangutorum nebkhas in a desert-oasis ecotone, dominated by Chenopodiaceae. The life forms were mainly annual herbs, accounting for 58.82%-71.43%. The number of species in the SSB were in the order of large nebkha > medium nebkha > small nebkha, and there was no significant difference in SSB density. However, SSB densities in different parts of each nebkha were in the order bottom > middle > top. The densities were significantly different and showed a decreasing trend as soil depth increased. Most of the plant seeds were distributed in the 0-5 cm soil layer. The similarity coefficient between the SSB of each nebkha and the aboveground vegetation was high. From the bottom to the top, the number of common species and similarity coefficient between the aboveground vegetation and the SSB decreased, and the number of species in the SSB was greater than that of the aboveground vegetation. Vegetation plays a decisive role in the initial development of a nebkha. When the nebkha develops to a certain extent, it reacts to the vegetation, thereby intensifying the differences in the composition of vegetation species in different parts of the nebkha and further affecting the SSB.
英文关键词	Nitraria tangutorum nebkhas soil seed bank spatial distribution aboveground vegetation desert-oasis ecotone
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000843217600001
WOS关键词	DUNE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392742
推荐引用方式 GB/T 7714	Li, Min,Xiao, Huijie,Xin, Zhiming,et al. Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert-Oasis Ecotone[J],2022,10.
APA	Li, Min.,Xiao, Huijie.,Xin, Zhiming.,Li, Xing.,Li, Junran.,...&Cao, Qiqi.(2022).Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert-Oasis Ecotone.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Li, Min,et al."Soil Seed Bank Characteristics of Nitraria tangutorum Nebkhas in a Desert-Oasis Ecotone".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).