干旱区生态环境知识资源中心(Arid): Soil and shrub differentially determine understorey herbaceous plant richness and abundance in a semi-arid riparian meadow

Arid

DOI	10.1007/s42974-021-00041-y
	Soil and shrub differentially determine understorey herbaceous plant richness and abundance in a semi-arid riparian meadow
	Han, Dayong; Wang, Jifeng; Ahan, Jianaer; Zhao, Yu; Yang, Yunfei
通讯作者	Han, DY (corresponding author), Yili Normal Univ, Sch Biol & Geog Sci, Yining 835000, Peoples R China.
来源期刊	COMMUNITY ECOLOGY
ISSN	1585-8553
EISSN	1588-2756
出版年	2021
卷号	22 期号:1 页码:113-125
英文摘要	It had been widely recognized that abiotic and biotic filters determined local community assembly and species diversity hierarchically. However, few studies distinguished the effects of abiotic and biotic filters on species richness and abundance, respectively. We evaluated the difference of abiotic (soil) and biotic (overstorey shrub) filters affecting richness and abundance of understory communities and further disentangle the direct and indirect effects of these filters, focusing on three habitats types defined along an elevational gradient (river bank, floodplain and upper terrace), in a semi-arid riparian vegetation dominated by Caragana aurantiaca Koehne, a dwarf legume shrub, in Yili valley, Sinkiang, China. Understorey herbaceous species richness presented a single effect of soil abiotic filter, which was significantly correlated with soil pH, but not with shrub height and cover, indicating that soil constitutes the main filter determining the species pool available for assembly of understorey vegetation. In contrast to species richness, understorey species abundance presented a joint effect of soil and shrub filters, but the variation explained by the shrub canopies was higher than that of soil variables, indicating overstorey shrub acted as the main filter determining species abundance. In addition, the direct effects of overstorey shrubs through competition and facilitation on understory species abundance are greater than the indirect effects through influencing soil status at local scale. Greater attention to shrub for understory vegetation assembly is needed to assess the role of biotic filter in the semi-arid riparian zone.
英文关键词	Caragana aurantiaca Species richness Ecological filtering Semi-arid region China’ s Sinkiang
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000630983700001
WOS关键词	SPECIES RICHNESS ; VEGETATION ; DIVERSITY ; COMMUNITIES ; RESPONSES ; FOREST ; SOUTH ; GRADIENTS ; PATTERNS
WOS类目	Ecology
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/2XILL650/349879
作者单位	[Han, Dayong; Ahan, Jianaer; Zhao, Yu] Yili Normal Univ, Sch Biol & Geog Sci, Yining 835000, Peoples R China; [Wang, Jifeng] Heilongjiang Acad Sci, Inst Nat Resource & Ecol, Natl & Prov Joint Engn Lab Wetlands & Ecol Conser, Key Lab Wetland & Restorat Ecol Heilongjiang Prov, Harbin 150040, Peoples R China; [Yang, Yunfei] Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Peoples R China
推荐引用方式 GB/T 7714	Han, Dayong,Wang, Jifeng,Ahan, Jianaer,et al. Soil and shrub differentially determine understorey herbaceous plant richness and abundance in a semi-arid riparian meadow[J],2021,22(1):113-125.
APA	Han, Dayong,Wang, Jifeng,Ahan, Jianaer,Zhao, Yu,&Yang, Yunfei.(2021).Soil and shrub differentially determine understorey herbaceous plant richness and abundance in a semi-arid riparian meadow.COMMUNITY ECOLOGY,22(1),113-125.
MLA	Han, Dayong,et al."Soil and shrub differentially determine understorey herbaceous plant richness and abundance in a semi-arid riparian meadow".COMMUNITY ECOLOGY 22.1(2021):113-125.