Diversity and asynchrony in soil microbial communities stabilizes ecosystem functioning

eLife, Journal Year: 2021, Volume and Issue: 10

Published: March 23, 2021

Theoretical and empirical advances have revealed the importance of biodiversity for stabilizing ecosystem functions through time. Despite global degradation soils, whether loss soil microbial diversity can destabilize functioning is poorly understood. Here, we experimentally quantified contribution fungal bacterial communities to temporal stability four key related biogeochemical cycling. Microbial enhanced all this pattern was particularly strong in plant-soil mesocosms with reduced richness where over 50% taxa were lost. The effect linked asynchrony among whereby different fungi bacteria promoted at times. Our results emphasize need conserve provisioning multiple that soils provide society.

Language: Английский

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Advancing the mechanistic understanding of the priming effect on soil organic matter mineralisation

Functional Ecology, Journal Year: 2022, Volume and Issue: 36(6), P. 1355 - 1377

Published: March 9, 2022

Abstract The priming effect (PE) is a key mechanism contributing to the carbon balance of soil ecosystem. Almost 100 years research since its discovery in 1926 have led rich body scientific publications identify drivers and mechanisms involved. A few review articles summarised acquired knowledge; last major one was published 2010. Since then, knowledge on microbial communities involved PE + C sequestration has been considerably renewed. This article reviews current state what extent new insights may improve our ability understand predict evolution stocks. We propose framework unify different concepts terms that emerged from international community this topic, report recent discoveries needs. Seventy per cent studies were 10 years, illustrating renewed interest for PE, probably linked increased concern about importance climate change food security issues. Among all proposed along with explain some are named differently but actually refer same object. overall introduces ‘artificial’ complexity mechanistic understanding we common, shared terminology. Despite remaining gaps, consistent progress achieved decipher abiotic underlying together role enzymes identity actors However, including into models SOM dynamics remains challenging as long not fully understood. In meantime, empirical alternatives available reproduce observations accurately when calibration robust. Based knowledge, scenarios depicting impact ecosystem services under conditions. Read free Plain Language Summary Journal blog.

Language: Английский

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Soil organic matter priming: The pH effects

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(6)

Published: June 1, 2024

Priming of soil organic matter (SOM) decomposition by microorganisms is a key phenomenon global carbon (C) cycling. Soil pH main factor defining priming effects (PEs) because it (i) controls microbial community composition and activities, including enzyme (ii) defines SOM stabilization destabilization mechanisms, (iii) regulates intensities many biogeochemical processes. In this critical review, we focus on prerequisites mechanisms PE depending assess the change consequences for PE. The highest PEs were common in soils with between 5.5 7.5, whereas low molecular weight compounds triggered mainly slightly acidic soils. Positive up to 20 times before C input at around 6.5. Negative below 4.5 or above 7 reflecting suboptimal environment specific high pH. Short-term acidification (in rhizosphere, after fertilizer application) affects by: mineral-SOM complexation, oxidation iron reduction, enzymatic depolymerization, pH-dependent changes nutrient availability. Biological processes metabolism shift over short-term, long-term adaptations slow are common. nitrogen fertilization induced land use intensification strongly decrease thus boost Concluding, one strongest but now disregarded factors PE, through short-term metabolic adaptation groups communities.

Language: Английский

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Litter quality controls the contribution of microbial carbon to main microbial groups and soil organic carbon during its decomposition

Biology and Fertility of Soils, Journal Year: 2024, Volume and Issue: 60(2), P. 167 - 181

Published: Jan. 6, 2024

Language: Английский

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Nitrogen addition stimulates priming effect in a subtropical forest soil

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 160, P. 108339 - 108339

Published: June 15, 2021

Language: Английский

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Network analysis reveals bacterial and fungal keystone taxa involved in straw and soil organic matter mineralization

Applied Soil Ecology, Journal Year: 2022, Volume and Issue: 173, P. 104395 - 104395

Published: Jan. 26, 2022

Language: Английский

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Positive priming effect explained by microbial nitrogen mining and stoichiometric decomposition at different stages

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 175, P. 108852 - 108852

Published: Oct. 11, 2022

Language: Английский

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How does soil water status influence the fate of soil organic matter? A review of processes across scales

Earth-Science Reviews, Journal Year: 2022, Volume and Issue: 234, P. 104214 - 104214

Published: Oct. 13, 2022

Language: Английский

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Effects of microbial groups on soil organic carbon accrual and mineralization during high- and low-quality litter decomposition

CATENA, Journal Year: 2024, Volume and Issue: 241, P. 108051 - 108051

Published: April 21, 2024

Language: Английский

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Microbial functional genes driving the positive priming effect in forest soils along an elevation gradient

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 165, P. 108498 - 108498

Published: Nov. 30, 2021

Language: Английский

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