Meta-analysis of the impacts of global change factors on soil microbial diversity and functionality

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: June 17, 2020

Biodiversity on the Earth is changing at an unprecedented rate due to a variety of global change factors (GCFs). However, effects GCFs microbial diversity unclear despite that soil microorganisms play critical role in biogeochemical cycling. Here, we synthesize 1235 GCF observations worldwide and show rare species are more sensitive than common species, while do not always lead reduction diversity. GCFs-induced shifts alpha can be predominately explained by changed pH. In addition, impacts functionality community structure biomass rather Altogether, our findings fundamentally different from previous knowledge for well-studied plant animal communities, crucial policy-making conservation hotspots under changes.

Language: Английский

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Soil microbial diversity–biomass relationships are driven by soil carbon content across global biomes

The ISME Journal, Journal Year: 2021, Volume and Issue: 15(7), P. 2081 - 2091

Published: Feb. 9, 2021

Abstract The relationship between biodiversity and biomass has been a long standing debate in ecology. Soil are essential drivers of ecosystem functions. However, unlike plant communities, little is known about how the diversity soil microbial communities interlinked across globally distributed biomes, variations this influence function. To fill knowledge gap, we conducted field survey global with contrasting vegetation climate types. We show that carbon (C) content associated to diversity–biomass ratio soils biomes. This provides an integrative index identify those locations on Earth wherein much higher compared vice versa. diversity-to-biomass peaks arid environments low C content, very C-rich cold environments. Our study further advances reductions land use intensification change could cause dramatic shifts diversity-biomass ratio, potential consequences for broad processes.

Language: Английский

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Organic amendments increase crop yields by improving microbe-mediated soil functioning of agroecosystems: A meta-analysis

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 124, P. 105 - 115

Published: June 15, 2018

Language: Английский

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Soil multifunctionality is affected by the soil environment and by microbial community composition and diversity

Soil Biology and Biochemistry, Journal Year: 2019, Volume and Issue: 136, P. 107521 - 107521

Published: June 26, 2019

Microorganisms are critical in mediating carbon (C) and nitrogen (N) cycling processes soils. Yet, it has long been debated whether the underlying biogeochemical cycles affected by composition diversity of soil microbial community or not. The communities can be influenced various environmental factors, which turn known to impact processes. objectives this study were test effects multiple edaphic drivers individually represented as multivariate environment interacting with diversity, concomitantly on functions (i.e. enzyme activities, C N processes). We employed high-throughput sequencing (Illumina MiSeq) analyze bacterial/archaeal fungal targeting 16S rRNA gene ITS1 region soils collected from three land uses (cropland, grassland forest) deriving two bedrock forms (silicate limestone). Based data set we explored single combined variables structure well activities several found that both shaped same most representation exerting stronger than communities, demonstrated (partial) Mantel tests. also similar controls bacterial/archaeal/fungal richness diversity. Soil only directly but not composition. In contrast, significantly related richness/diversity environment. This indicates direct control indirect structuring communities. further highlights importance diversity) important

Language: Английский

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Aridity-driven shift in biodiversity–soil multifunctionality relationships

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Sept. 9, 2021

Relationships between biodiversity and multiple ecosystem functions (that is, multifunctionality) are context-dependent. Both plant soil microbial diversity have been reported to regulate multifunctionality, but how their relative importance varies along environmental gradients remains poorly understood. Here, we relate multifunctionality across 130 dryland sites a 4,000 km aridity gradient in northern China. Our results show strong positive association species richness less arid regions, whereas diversity, particular of fungi, is positively associated with more regions. This shift the relationships or occur at an level ∼0.8, boundary semiarid climates, which predicted advance geographically ∼28% by end current century. study highlights that loss plants microorganisms may especially consequences under low high conditions, respectively, calls for climate-specific conservation strategies mitigate effects aridification.

Language: Английский

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A closer look at the functions behind ecosystem multifunctionality: A review

Journal of Ecology, Journal Year: 2020, Volume and Issue: 109(2), P. 600 - 613

Published: Oct. 6, 2020

Abstract In recent years there has been an upsurge of studies on ecosystem multifunctionality (EMF), or the ability ecosystems to simultaneously provide multiple functions and/or services. The concept EMF itself, analytical approaches used calculate it, and its implications depending spatial scale field study have discussed in detail. However, date little dialogue concerning basis studies: what should not be considered appropriate measures for functions. To begin this discussion, we performed in‐depth review across four major terrestrial (agroecosystems, drylands, forests grasslands) by analysing 82 studies, which together assessed 775 from a variety greenhouse experiments globe. number analysed varied two per found large differences distribution types service categories. Furthermore, was explanation why certain variables were included calculation how they relate functioning. Synthesis . Based literature analysis, it is clear that no general agreement regarding measurements ecology. address issue, propose guideline determining measuring

Language: Английский

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Soil microbial network complexity predicts ecosystem function along elevation gradients on the Tibetan Plateau

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 172, P. 108766 - 108766

Published: June 25, 2022

Language: Английский

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Global ecological predictors of the soil priming effect

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Aug. 2, 2019

Identifying the global drivers of soil priming is essential to understanding C cycling in terrestrial ecosystems. We conducted a survey soils across 86 globally-distributed locations, spanning wide range climates, biotic communities, and conditions, evaluated apparent effect using 13C-glucose labeling. Here we show that magnitude positive (increase CO2 release through accelerated microbial biomass turnover) was negatively associated with SOC content respiration rates. Our statistical modeling suggests effects tend be negative more mesic sites higher contents. In contrast, single-input labile causes arid locations low results provide solid evidence plays critical role regulating effects, important implications for improvement models under change scenarios.

Language: Английский

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Deciphering the associations between soil microbial diversity and ecosystem multifunctionality driven by long‐term fertilization management

Functional Ecology, Journal Year: 2017, Volume and Issue: 32(4), P. 1103 - 1116

Published: Dec. 24, 2017

Abstract An increasing number of studies indicate that microbial diversity plays a crucial role in the mediation ecosystem multifunctionality ( EMF ) natural ecosystems. However, this point remains mostly overlooked managed ecosystems, especially agriculture. Here, we compiled promising strategies for targeted exploitation associations between and agricultural soils using samples from two long‐term (more than 30 years) experimental field sites southern China. The experienced similar monsoon climate fertilization management practices. We used high‐throughput amplicon sequencing, structural equation modelling random forest analysis, to analyse our data validate hypotheses. found soil physiochemical properties C‐, N‐, P‐ S‐cycle enzyme activities were increased with increase diversity. Specifically, positive linear relationship was observed , which mediated by via changes communities properties. Random analysis SEM showed important on maintained even when simultaneously taking multiple drivers (soil properties, aggregation enzymatic patterns) into account. In addition, diversity, C‐cycle activity pH value are feasible predictors ; these factors shown be main arable soils. Our findings suggest there may limited degree multifunctional redundancy suggests practices foster more diverse have potential improve functioning agroecosystems. A plain language summary is available article.

Language: Английский

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Differential sensitivity of total and active soil microbial communities to drought and forest management

Global Change Biology, Journal Year: 2017, Volume and Issue: 23(10), P. 4185 - 4203

Published: June 14, 2017

Climate change will affect semiarid ecosystems through severe droughts that increase the competition for resources in plant and microbial communities. In these habitats, adaptations to climate may consist of thinning-that reduces a decrease tree density promotion survival. We deciphered functional phylogenetic responses community 6 years drought induced by rainfall exclusion how forest management affects its resistance drought, ecosystem dominated Pinus halepensis Mill. A multiOMIC approach was applied reveal novel, community-based strategies face change. The diversity composition total active soil microbiome were evaluated 16S rRNA gene (bacteria) ITS (fungal) sequencing, metaproteomics. biomass analyzed phospholipid fatty acids (PLFAs), microbially mediated multifunctionality studied integration enzyme activities related cycles C, N, P. decreased drought-plots, as consequence lower moisture poorer development, but this more notable unthinned plots. structure bacterial unaffected at phylum order level, did so genus influenced seasonality. However, fungal sensitive multifunctionality. Thinning plots without increased while not affected. promoted changes community. analyses avoids misinterpretations links between

Language: Английский

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