Microbial necromass in cropland soils: A global meta‐analysis of management effects

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(7), P. 1998 - 2014

Published: Feb. 7, 2023

Abstract Microbial necromass is a large and persistent component of soil organic carbon (SOC), especially under croplands. The effects cropland management on microbial accumulation its contribution to SOC have been measured in individual studies but not yet summarized the global scale. We conducted meta‐analysis 481‐paired measurements from soils examine identify optimal conditions for accumulation. Nitrogen fertilization increased total C by 12%, cover crops 14%, no or reduced tillage (NT/RT) 20%, manure 21%, straw amendment 21%. was independent biochar addition. NT/RT fungal more than bacterial necromass. Manure higher fungal, leading decreased ratio fungal‐to‐bacterial Greater increases after amendments were common semi‐arid cool climates with pH <8, proportional amount input. In contrast, mainly warm humid climates. application irrespective properties climate. Management strong when applied during medium (3–10 years) long (10+ periods larger initial contents, absent sandy soils. Close positive links between biomass, indicate important role stabilized products accrual. increment (accumulation efficiency) NT/RT, crops, ranged 45% 52%, which 9%–16% N fertilization. summary, long‐term enhancing accumulation, optimizing sequestration requires site‐specific management.

Language: Английский

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Necromass-derived soil organic carbon and its drivers at the global scale

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 181, P. 109025 - 109025

Published: April 6, 2023

Language: Английский

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Nitrogen availability and mineral particles contributed fungal necromass to the newly formed stable carbon pool in the alpine areas of Southwest China

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 173, P. 108788 - 108788

Published: Aug. 9, 2022

Language: Английский

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Nutrient availability and stoichiometry mediate microbial effects on soil carbon sequestration in tropical forests

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 186, P. 109186 - 109186

Published: Sept. 29, 2023

Language: Английский

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Mulch-derived microplastic aging promotes phthalate esters and alters organic carbon fraction content in grassland and farmland soils

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 461, P. 132619 - 132619

Published: Sept. 23, 2023

Language: Английский

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Vegetation restoration altered the soil organic carbon composition and favoured its stability in a Robinia pseudoacacia plantation

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 899, P. 165665 - 165665

Published: July 19, 2023

Language: Английский

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Mechanism of polyethylene and biodegradable microplastic aging effects on soil organic carbon fractions in different land-use types

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 168961 - 168961

Published: Dec. 1, 2023

Language: Английский

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Contrasting roles of plant, bacterial, and fungal diversity in soil organic carbon accrual during ecosystem restoration: A meta-analysis

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 930, P. 172767 - 172767

Published: April 25, 2024

Language: Английский

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Contrasting processes of microbial anabolism and necromass formation between upland and paddy soils across regional scales

CATENA, Journal Year: 2024, Volume and Issue: 239, P. 107902 - 107902

Published: Feb. 23, 2024

Language: Английский

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Organic amendments with low C/N ratios enhanced the deposition of crop root exudates into stable soil organic carbon in a sodic soil

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Language: Английский

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