干旱区生态环境知识资源中心(Arid): Fertile islands lead to more conspicuous spatial heterogeneity of bacteria than soil physicochemical properties in a desert ecosystem

Arid

DOI	10.1016/j.catena.2021.105526
	Fertile islands lead to more conspicuous spatial heterogeneity of bacteria than soil physicochemical properties in a desert ecosystem
	Li, Shuyue; Chen, Weimin; Li, Zubing; Bu, Lianyan; Jin, Zexing; Wei, Gehong; Li, Zhefei
通讯作者	Wei, GH ; Li, ZF (corresponding author), Northwest A&F Univ, Coll Life Sci, Shaanxi Key Lab Agr & Environm Microbiol, State Key Lab Crop Stress Biol Arid Areas, Yangling, Shaanxi, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	206
英文摘要	The fertile islands resulting from discrete plants are important for the structure and function of dryland ecosystems. To understand the spatial heterogeneity of soil biotic and abiotic resources as a result of fertile islands in deserts, soil bacterial and physicochemical profiles were measured at four soil depths (0-10 cm, 10-20 cm, 20-40 cm, and 40-60 cm) in three soil patches (under mid-canopies, at the edge of canopy cover, and in bare soil) around legumes (Hedysarum scoparium shrubs) and non-legumes (Artemisia ordosica shrubs). Unexpectedly, the patches of the two plants showed similar soil abiotic and biotic patterns. Copiotrophs and potential decomposers were enriched under mid-canopies, with more phylogenetically clustered bacterial communities, and co-occurrence networks with lower connectivity and higher modularity than in bare soil. In bare soil, oligotrophs and potential nitrate reducers were enriched. Soil properties showed less conspicuous spatial heterogeneity than bacterial communities. The only soil physicochemical properties enriched under mid-canopies were soil organic matter, dissolved organic carbon, and nitrate; their enrichment was significantly related to bacterial communities. This study elucidates the spatial patterns of soil properties and their relationships, which are observed in fertile islands of desert ecosystems, and provides further insights into the mechanisms of soil nutrient redistribution.
英文关键词	Fertile islands Bacteria Heterogeneous distribution Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000688449100035
WOS关键词	MICROBIAL COMMUNITIES ; VERTICAL-DISTRIBUTION ; DIVERSITY ; ABUNDANCE ; QUALITY ; SHRUBS ; RHIZOSPHERE ; VEGETATION ; INSIGHTS ; PATTERN
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362800
作者单位	[Li, Shuyue; Chen, Weimin; Li, Zubing; Bu, Lianyan; Jin, Zexing; Wei, Gehong; Li, Zhefei] Northwest A&F Univ, Coll Life Sci, Shaanxi Key Lab Agr & Environm Microbiol, State Key Lab Crop Stress Biol Arid Areas, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuyue,Chen, Weimin,Li, Zubing,et al. Fertile islands lead to more conspicuous spatial heterogeneity of bacteria than soil physicochemical properties in a desert ecosystem[J]. 西北农林科技大学,2021,206.
APA	Li, Shuyue.,Chen, Weimin.,Li, Zubing.,Bu, Lianyan.,Jin, Zexing.,...&Li, Zhefei.(2021).Fertile islands lead to more conspicuous spatial heterogeneity of bacteria than soil physicochemical properties in a desert ecosystem.CATENA,206.
MLA	Li, Shuyue,et al."Fertile islands lead to more conspicuous spatial heterogeneity of bacteria than soil physicochemical properties in a desert ecosystem".CATENA 206(2021).