Deciphering factors driving soil microbial life‐history strategies in restored grasslands

iMeta, Journal Year: 2022, Volume and Issue: 2(1)

Published: Dec. 4, 2022

In macroecology, the concept of r- and K-strategy has been widely applied, yet, there have limited studies on microbial life-history strategies in temperate grasslands using multiple sequencing approaches. Total phospholipid fatty acid (PLFA) analysis, high-throughput meta-genomic sequencing, GeoChip technologies were used to examine changes traits a chronosequence restored (1, 5, 10, 15, 25, 30 years since restoration). Grassland restoration increased relative abundances Actinobacteria, Proteobacteria, Bacteroidetes but reduced Acidobacteria, Planctomycetes, Chloroflexi. PLFA analysis revealed that grassland fungi:bacteria Gram-positive:Gram-negative bacteria ratios. Combined with data, we found shifted microorganisms from oligotrophic (K-) copiotrophic (r-) groups, consistent rRNA operon copy number community. Structural equation modeling showed soil properties positively (

Language: Английский

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Nitrogen fertilizer builds soil organic carbon under straw return mainly via microbial necromass formation

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 188, P. 109223 - 109223

Published: Oct. 22, 2023

Language: Английский

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Shifts in C-degradation genes and microbial metabolic activity with vegetation types affected the surface soil organic carbon pool

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 192, P. 109371 - 109371

Published: Feb. 28, 2024

Language: Английский

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Nitrogen enrichment stimulates rhizosphere multi-element cycling genes via mediating plant biomass and root exudates

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 190, P. 109306 - 109306

Published: Jan. 2, 2024

Language: Английский

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Contributions of plant‐ and microbial‐derived residuals to mangrove soil carbon stocks: Implications for blue carbon sequestration

Functional Ecology, Journal Year: 2024, Volume and Issue: 38(3), P. 573 - 585

Published: Jan. 3, 2024

Abstract Coastal blue carbon ecosystems, particularly mangroves, are becoming increasingly recognised for their importance in mitigating climate change. Still, the specific patterns and drivers of plant lignin components microbial necromass accumulation these ecosystems unclear. In response, we carried out a study along 40‐year mangrove restoration chronosequence, measuring phenol amino sugar concentrations soil profiles (0–100 cm) as indicators plant‐based microbial‐derived residues, respectively. Our results showed that significantly increased concentrations, with mature mangroves having much higher than tidal flats. During restoration, fungal was greater bacterial necromass. The factors influencing phenols were tree biomass, total nitrogen, pH salinity, while those formation sugars C: N ratio pH. While decreased, content SOC, providing evidence important role play SOC mangrove. Synthesis : By separating into components, our demonstrate stock sediments is vulnerable to disturbances changes from anaerobic aerobic conditions cause significant mineralisation. precise identification sources could aid elucidating mechanisms sequestration responses environmental changes. Read free Plain Language Summary this article on Journal blog.

Language: Английский

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Divergent accumulation of microbe- and plant-derived carbon in different soil organic matter fractions in paddy soils under long-term organic amendments

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 366, P. 108934 - 108934

Published: Feb. 23, 2024

Language: Английский

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The contribution of microbial necromass to soil organic carbon and influencing factors along a variation of habitats in alpine ecosystems

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 921, P. 171126 - 171126

Published: Feb. 21, 2024

Language: Английский

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Soil microbial community and their functional genes during grassland restoration

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 325, P. 116488 - 116488

Published: Oct. 27, 2022

Language: Английский

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Differential effects of forest-floor litter and roots on soil organic carbon formation in a temperate oak forest

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 180, P. 109017 - 109017

Published: March 20, 2023

Language: Английский

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Climatic seasonality challenges the stability of microbial‐driven deep soil carbon accumulation across China

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(15), P. 4430 - 4439

Published: May 16, 2023

Microbial residues contribute to the long-term stabilization of carbon in entire soil profile, helping regulate climate planet; however, how sensitive these are climatic seasonality remains virtually unknown, especially for deep soils across environmental gradients. Here, we investigated changes microbial along profiles (0-100 cm) from 44 typical ecosystems with a wide range climates (~3100 km transects China). Our results showed that account larger portion deeper (60-100 vs. shallower (0-30 and 30-60 soils. Moreover, find challenges accumulation soils, while properties share their roles controlling residue surface Climatic seasonality, including positive correlations summer precipitation maximum monthly precipitation, as well negative temperature annual range, important factors explaining China. In particular, is key regulator microbial-driven stability which has 37.2% relative independent effects on deep-soil accumulation. work provides novel insights into importance driving challenging idea reservoirs can buffer change.

Language: Английский

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