Effects of sustainable agricultural practices on soil microbial diversity, composition, and functions

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 370, С. 109053 - 109053

Опубликована: Май 4, 2024

Язык: Английский

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Roots have greater effects on the accumulation of soil microbial residue carbon in microaggregate fractions than leaf litter in a subtropical forest

Geoderma, Год журнала: 2024, Номер 442, С. 116803 - 116803

Опубликована: Фев. 1, 2024

Microbial residues as the key component of stable soil organic carbon (SOC) play a critical role in stabilizing SOC, and their accumulation is influenced by plant litter. However, how microbial different aggregate fractions forest soils responds to changes inputs leaf root litter remains poorly understood. Here, we test hypothesis that exclusion has greater effects on than leaf-litter among based litter-input manipulation experiment subtropical coniferous forest. The concentrations bacterial, fungal, total were higher large macroaggregates (> 2000 μm) but lower small (250–2000 μm). Root decreased microaggregates (< 250 μm), fungal microaggregates. Fungal had proportions SOC (20.7–34.9%) bacterial (10.8–18.6%) fractions, other fractions. reduced (14.5%, 15.7%, 15.3%, respectively), compared reduction observed (10.8%, 7.1%, 8.4%, respectively). And Soil residue-carbon coefficient was macroaggregates. increased microaggregates, it also Proportions more strongly related live biomass nutrients those residues. Our results suggest exerts stronger these vary sizes.

Язык: Английский

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Short-term warming supports mineral-associated carbon accrual in abandoned croplands

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 2, 2025

Effective soil organic carbon (SOC) management can mitigate the impact of climate warming. However, response different SOC fractions to warming in abandoned croplands remains unclear. Here, categorizing into particulate and mineral-associated (POC MAOC) with physical fractionation, we investigate responses POC MAOC content temperature sensitivity (Q10) through a 3-year situ experiment (+1.6 °C) across 12 sites China (latitude: 22.33–46.58°N). Our results indicate that unchanged while significantly increases under changes are mainly influenced by root biomass microbial necromass changes, respectively. The Q10 is lower than regardless or control treatment, suggesting represents most persistent least vulnerable fraction within SOC. Collectively, sequestration stable be enhanced short-term Natural recovery generally benefits accrual croplands, but on this ecosystem authors showed enhances these lands.

Язык: Английский

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Soil aggregate carbon accrual via the microbial life footprint with nutrient management in worldwide croplands

Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 144717 - 144717

Опубликована: Янв. 1, 2025

Язык: Английский

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Microbial carbon use efficiency of mineral-associated organic matter is related to its desorbability

Soil Biology and Biochemistry, Год журнала: 2025, Номер unknown, С. 109740 - 109740

Опубликована: Фев. 1, 2025

Язык: Английский

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