气候变化领域集成服务门户(CCPortal): Microbial impact on initial soil formation in arid and semiarid environments under simulated climate change

CCPortal

DOI	10.3389/fmicb.2024.1319997
	Microbial impact on initial soil formation in arid and semiarid environments under simulated climate change
	Rodriguez, Victoria; Bartholomaeus, Alexander; Witzgall, Kristina; Riveras-Munoz, Nicolas; Oses, Romulo; Liebner, Susanne; Kallmeyer, Jens; Rach, Oliver; Mueller, Carsten W.; Seguel, Oscar; Scholten, Thomas; Wagner, Dirk
发表日期	2024
EISSN	1664-302X
起始页码	15
卷号	15
英文摘要	The microbiota is attributed to be important for initial soil formation under extreme climate conditions, but experimental evidence for its relevance is scarce. To fill this gap, we investigated the impact of in situ microbial communities and their interrelationship with biocrust and plants compared to abiotic controls on soil formation in initial arid and semiarid soils. Additionally, we assessed the response of bacterial communities to climate change. Topsoil and subsoil samples from arid and semiarid sites in the Chilean Coastal Cordillera were incubated for 16 weeks under diurnal temperature and moisture variations to simulate humid climate conditions as part of a climate change scenario. Our findings indicate that microorganism-plant interaction intensified aggregate formation and stabilized soil structure, facilitating initial soil formation. Interestingly, microorganisms alone or in conjunction with biocrust showed no discernible patterns compared to abiotic controls, potentially due to water-masking effects. Arid soils displayed reduced bacterial diversity and developed a new community structure dominated by Proteobacteria, Actinobacteriota, and Planctomycetota, while semiarid soils maintained a consistently dominant community of Acidobacteriota and Proteobacteria. This highlighted a sensitive and specialized bacterial community in arid soils, while semiarid soils exhibited a more complex and stable community. We conclude that microorganism-plant interaction has measurable impacts on initial soil formation in arid and semiarid regions on short time scales under climate change. Additionally, we propose that soil and climate legacies are decisive for the present soil microbial community structure and interactions, future soil development, and microbial responses.
英文关键词	arid soil; semiarid soil; manipulation experiment; climate change; initial soil formation; bacterial community
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:001152504000001
来源期刊	FRONTIERS IN MICROBIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307305
作者单位	Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; Technical University of Munich; Eberhard Karls University of Tubingen; Universidad de Atacama; University of Potsdam; Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; Technical University of Berlin; University of Copenhagen; Universidad de Chile; University of Potsdam
推荐引用方式 GB/T 7714	Rodriguez, Victoria,Bartholomaeus, Alexander,Witzgall, Kristina,et al. Microbial impact on initial soil formation in arid and semiarid environments under simulated climate change[J],2024,15.
APA	Rodriguez, Victoria.,Bartholomaeus, Alexander.,Witzgall, Kristina.,Riveras-Munoz, Nicolas.,Oses, Romulo.,...&Wagner, Dirk.(2024).Microbial impact on initial soil formation in arid and semiarid environments under simulated climate change.FRONTIERS IN MICROBIOLOGY,15.
MLA	Rodriguez, Victoria,et al."Microbial impact on initial soil formation in arid and semiarid environments under simulated climate change".FRONTIERS IN MICROBIOLOGY 15(2024).