Priming effects induced by degradable microplastics in agricultural soils

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 180, P. 109006 - 109006

Published: March 6, 2023

Language: Английский

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Root Exudates Mediate the Processes of Soil Organic Carbon Input and Efflux

Plants, Journal Year: 2023, Volume and Issue: 12(3), P. 630 - 630

Published: Jan. 31, 2023

Root exudates, as an important form of material input from plants to the soil, regulate carbon and efflux plant rhizosphere soil play role in maintaining nutrient balance whole ecosystem. exudates are notoriously difficult collect due their underlying characteristics (e.g., low concentration fast turnover rate) associated methodological challenges accurately measuring root native soils. As a result, up until now, it has been quantify organic most studies. In recent years, contribution ecological effects have paid more attention. However, mechanism mediated by rarely analyzed comprehensively. this review, main processes influencing factors demonstrated. Soil minerals microbes key roles processes. The allocation is influenced relationship between functional traits. Compared with quantity response exudate quality environmental changes affects function more. future, different availability will be quantified, which helpful understand sequestration.

Language: Английский

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Input of high-quality litter reduces soil carbon losses due to priming in a subtropical pine forest

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 194, P. 109444 - 109444

Published: April 22, 2024

Language: Английский

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Bioenergetic control of soil carbon dynamics across depth

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Dec. 12, 2022

Soil carbon dynamics is strongly controlled by depth globally, with increasingly slow found at depth. The mechanistic basis remains however controversial, limiting our ability to predict cycle-climate feedbacks. Here we combine radiocarbon and thermal analyses long-term incubations in absence/presence of continuously 13C/14C-labelled plants show that bioenergetic constraints decomposers consistently drive the depth-dependency soil over a range mineral reactivity contexts. subsoil tightly related both its low energy density high activation decomposition, leading an unfavourable 'return-on-energy-investment' for decomposers. We also observe strong acceleration millennia-old decomposition induced roots ('rhizosphere priming'), showing sufficient supply able alleviate limitation decomposition. These findings demonstrate persistence results from poor quality together lack due their

Language: Английский

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Long-term warming reduces surface soil organic carbon by reducing mineral-associated carbon rather than “free” particulate carbon

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 177, P. 108905 - 108905

Published: Dec. 2, 2022

Language: Английский

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Nitrogen addition increases the glucose-induced priming effect of the particulate but not the mineral-associated organic carbon fraction

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 184, P. 109106 - 109106

Published: June 19, 2023

Nitrogen availability affects the mineralization of soil organic matter differently depending on type and layer. It is unknown whether such differences result from different responses individual carbon fractions to N supply. This study examined priming effect (PE) decomposition particulate (POM) mineral-associated (MAOM) in response addition. Two soils, one a woodland other cropland, were fractionated obtain two POM differing C:N ratio MAOM mineral C protection. each incubated for 14 days after initial supply 13C-glucose Ca(NO3)2 at 0, 20 60 mg kg−1. Glucose addition induced stronger PE per unit than POM, particularly (6.2 vs. 0.8 g−1 C). The glucose-stimulated increases abundances bacteria, fungi, four functional genes (LMCOs, ureC, npr chiA) also larger POM. was similar (C:N 11.6–12.4) soils not affected by By contrast, increased 21.6) (e.g., 7-fold kg−1), along with marked genes, fungi bacteria. Compared soil, kg−1 cropland 16.9) stimulated lesser extent (by 30%). These results suggest that input may have greater potential stimulating higher proportion ratio.

Language: Английский

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Methods for quantification of biochar in soils: A critical review

CATENA, Journal Year: 2024, Volume and Issue: 241, P. 108082 - 108082

Published: May 4, 2024

Language: Английский

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Exogenous calcium-induced carbonate formation to increase carbon sequestration in coastal saline-alkali soil

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174338 - 174338

Published: June 27, 2024

Language: Английский

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Soil net carbon balance depends on soil C: N: P stoichiometry

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 245, P. 106298 - 106298

Published: Sept. 9, 2024

Language: Английский

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Ectomycorrhizal effects on decomposition are highly dependent on fungal traits, climate, and litter properties: A model-based assessment

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 184, P. 109073 - 109073

Published: June 16, 2023

Language: Английский

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