干旱区生态环境知识资源中心(Arid): Rare soil microbial taxa regulate the negative effects of land degradation drivers on soil organic matter decomposition

Arid

DOI	10.1111/1365-2664.13935
	Rare soil microbial taxa regulate the negative effects of land degradation drivers on soil organic matter decomposition
	Wu, Ying; Chen, Dima; Saleem, Muhammad; Wang, Bing; Hu, Shuijin; Delgado-Baquerizo, Manuel; Bai, Yongfei
通讯作者	Chen, DM (corresponding author), China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang, Peoples R China. ; Chen, DM ; Bai, YF (corresponding author), Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China. ; Bai, YF (corresponding author), Univ Chinese Acad Sci, Beijing, Peoples R China.
来源期刊	JOURNAL OF APPLIED ECOLOGY
ISSN	0021-8901
EISSN	1365-2664
出版年	2021
卷号	58 期号:8 页码:1658-1669
英文摘要	Land degradation drivers, including loss in vegetation and eutrophication, are expected to impact soil biodiversity and functions in drylands world-wide. Soils contain both common and rare microbial taxa that drive multiple soil functions. Yet, little is known about how these microbial taxa influence the impacts of land degradation drivers on ecosystem functions. Obtaining this information is essential to determine whether rare taxa need to be protected, or if protecting only common taxa would be enough to sustain and protect ecosystem functions and services. Here, we conducted an experiment to investigate the effects of N-enrichment and vegetation loss (plant removal), which are two major land degradation drivers in semi-arid grasslands, on the diversities of common and rare soil bacterial and fungal taxa and soil function [soil organic matter (SOM) decomposition] in a long-term experiment. Six years after N-enrichment and vegetation loss, we found that N-enrichment decreased the alpha diversities of common and rare soil bacteria and rare soil fungi, while vegetation loss only decreased the alpha diversity of rare soil fungi. Both N-enrichment and vegetation loss altered the community composition of common and rare bacteria and fungi, except for the lack of response of common soil fungi to the vegetation loss. Moreover, both structural equation modelling and variation partitioning analyses show that land degradation drivers reduce SOM decomposition, and these were also indirectly associated with changes in the diversity of rare microbial taxa, especially that of bacteria. Synthesis and applications. Collectively, this work shows that land degradation can have negative impacts on soil biodiversity and functions, and the rare microbial taxa indirectly regulate the impacts of land degradation on ecosystem functioning. These results indicate that the rare microbial taxa can be used as one of the ecological indicators for identifying land degradation in the semi-arid grasslands. These findings are essential to understand the future impacts of desertification and land degradation on rare microbial taxa-function relationships in global drylands.
英文关键词	alpha diversity beta diversity common taxa community assembly environmental context plant removal plant-soil Interactions rare taxa
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000664036100001
WOS关键词	PLANT DIVERSITY ; COMMUNITY STRUCTURE ; NITROGEN-FERTILIZATION ; FUNGAL COMMUNITIES ; ALPHA DIVERSITY ; BACTERIAL ; CARBON ; BIODIVERSITY ; ECOSYSTEMS ; ENRICHMENT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352300
作者单位	[Wu, Ying; Chen, Dima; Wang, Bing] China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang, Peoples R China; [Wu, Ying; Chen, Dima; Wang, Bing; Bai, Yongfei] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China; [Wu, Ying] Yunnan Univ, State Key Lab Conservat & Utilizat Bioresources, Kunming, Yunnan, Peoples R China; [Saleem, Muhammad] Alabama State Univ, Dept Biol Sci, Montgomery, AL 36101 USA; [Hu, Shuijin] North Carolina State Univ, Dept Plant Pathol, Raleigh, NC USA; [Delgado-Baquerizo, Manuel] Univ Pablo de Olavide, Dept Sistemas Fis Quim & Nat, Seville, Spain; [Bai, Yongfei] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Ying,Chen, Dima,Saleem, Muhammad,et al. Rare soil microbial taxa regulate the negative effects of land degradation drivers on soil organic matter decomposition[J]. 中国科学院植物研究所,2021,58(8):1658-1669.
APA	Wu, Ying.,Chen, Dima.,Saleem, Muhammad.,Wang, Bing.,Hu, Shuijin.,...&Bai, Yongfei.(2021).Rare soil microbial taxa regulate the negative effects of land degradation drivers on soil organic matter decomposition.JOURNAL OF APPLIED ECOLOGY,58(8),1658-1669.
MLA	Wu, Ying,et al."Rare soil microbial taxa regulate the negative effects of land degradation drivers on soil organic matter decomposition".JOURNAL OF APPLIED ECOLOGY 58.8(2021):1658-1669.