干旱区生态环境知识资源中心(Arid): Disturbance is more important than seeding or grazing in determining soil microbial communities in a semiarid grassland

Arid

DOI	10.1111/rec.13156
	Disturbance is more important than seeding or grazing in determining soil microbial communities in a semiarid grassland
	Farrell, Hannah L.1; Barberan, Albert 2; Danielson, Rachel E.3; Fehmi, Jeffrey S.1; Gornish, Elise S.1
通讯作者	Farrell, Hannah L.
来源期刊	RESTORATION ECOLOGY
ISSN	1061-2971
EISSN	1526-100X
出版年	2020
卷号	28 页码:S335-S343
英文摘要	A primary goal of ecological restoration is often to return processes and functions to degraded ecosystems. Soil, while often ignored in restoration, supports diverse communities of organisms and is a fundamental actor in providing ecosystem processes and services. We investigated the impact of seeding and livestock grazing on plant communities, soil microorganisms, and soil fertility 3 years after the restoration of a disturbed pipeline corridor in southeastern Arizona. The initial soil disturbance and topsoil treatment, regardless of seeding or grazing, was the most influential factor in determining differences in both plant and microbial communities. Compared with the control, the disturbed and restored sites had greater plant species richness, greater total herbaceous plant cover, greater soil organic matter, higher pH, and differed in soil nutrients. Bacteria and fungi appeared to generally correlate with micro-environment and soil physiochemical properties rather than specific plant species. The undisturbed control had a smaller proportion of bacterial functional groups associated with the breakdown of plant biomass (polysaccharide decomposition) and a smaller proportion of arbuscular mycorrhizal fungi (AMF) compared with disturbed and restored sites. The ability of the unseeded disturbed site to recover robust vegetation may be due in part to the high presence of AMF. These differences show selection for soil microorganisms that thrive in disturbed and restored sites and may contribute to increased plant productivity. Restoration of specific plant species or ecological processes and services would both benefit from better understanding of the impacts of disturbance on soil microorganisms and soil fertility.
英文关键词	bacteria fungi plant species reclamation restoration soil nutrients soil properties topsoil vegetation community
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000525768600001
WOS关键词	PLANT DIVERSITY ; SONORAN DESERT ; INDICATORS ; RESTORATION ; PATTERNS ; RESPONSES ; DATABASE ; GROWTH ; FUNGI
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of Arizona ; University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315455
作者单位	1.Univ Arizona, Sch Nat Resources & Environm, POB 210137, Tucson, AZ 85721 USA; 2.Univ Arizona, Dept Environm Sci, POB 210038, Tucson, AZ 85721 USA; 3.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Farrell, Hannah L.,Barberan, Albert,Danielson, Rachel E.,et al. Disturbance is more important than seeding or grazing in determining soil microbial communities in a semiarid grassland[J]. University of Arizona, University of California, Davis,2020,28:S335-S343.
APA	Farrell, Hannah L.,Barberan, Albert,Danielson, Rachel E.,Fehmi, Jeffrey S.,&Gornish, Elise S..(2020).Disturbance is more important than seeding or grazing in determining soil microbial communities in a semiarid grassland.RESTORATION ECOLOGY,28,S335-S343.
MLA	Farrell, Hannah L.,et al."Disturbance is more important than seeding or grazing in determining soil microbial communities in a semiarid grassland".RESTORATION ECOLOGY 28(2020):S335-S343.