Interactions between iron mineral and low-molecular-weight organic acids accelerated nitrogen conversion and release in lake sediments

Water Research, Journal Year: 2025, Volume and Issue: 275, P. 123174 - 123174

Published: Jan. 21, 2025

Language: Английский

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Important role of Fe oxides in global soil carbon stabilization and stocks

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 28, 2024

Iron (Fe) oxides can interact with soil organic carbon (SOC) to form Fe-bound (OC-Fe), which strongly promotes SOC protection, mitigating global climate change. However, the patterns and factors controlling OC-Fe are unclear. Here, we conducted a meta-analysis of 3,395 globally distributed profiles reveal role Fe-Al in stabilization stocks. The stock topsoil is 233 PgC, accounting for 33 ± 15% total stock. A substantial deficit (difference between OC-Femax) was observed at equator mid-latitudes. Our findings suggest that mineral should be incorporated into models improve model predictions. Although there uncertainties current extraction method, distribution OC-Femax constitutes vital resource future research targeting cycling issues offers innovative strategies sequestration initiatives. stabilize globally, (233 PgC). evident mid-latitudes, highlighting opportunities

Language: Английский

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Iron at the helm: steering arsenic speciation through redox processes in soils

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121327 - 121327

Published: March 1, 2025

Language: Английский

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Soil Carbon Sequestration: Role of Fe Oxides and Polyphenol Oxidase Across Temperature and Cultivation Systems

Plants, Journal Year: 2025, Volume and Issue: 14(6), P. 927 - 927

Published: March 15, 2025

The “enzyme latch” and “Fe gate” mechanisms are crucial factors influencing soil carbon sequestration capacity, playing a key role in understanding the dynamic changes organic (SOC). However, there is lack of research regarding polyphenol oxidase (PPO) activity concentration iron oxides paddy soils under varying incubating temperatures cultivation practices. This study was conducted over three years double-cropping rice area southern China, incorporating systematic sampling to measure PPO activity, Fe oxide concentration, basic physicochemical properties. results showed that temperature did not significantly affect either or oxides. Additionally, compared conventional management (CK), led decrease (Fe bound matter, reactive Fe, total free Fe) by 19.1%, 16.2%, 13.7%, respectively (p < 0.05). At same time, show any significant changes. Our indicated short-term (5 weeks) incubation oxides, while farming decreased without activity. increased with length period.

Language: Английский

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Climate and human activities alter coupling of soil macro- and micronutrients: Evidence from a long-term experiment in typical steppes

Geoderma, Journal Year: 2025, Volume and Issue: 456, P. 117250 - 117250

Published: March 23, 2025

Language: Английский

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Biochemical Transformation of Nitrogen Reactive Species in the Vadose Zone

Water Conservation Science and Engineering, Journal Year: 2025, Volume and Issue: 10(1)

Published: March 21, 2025

Language: Английский

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Organic matter characteristics and mineralization in ironstone gravel from two Plinthic soils in the Coastal Plain of Georgia

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Agricultural soils can contain a significant proportion of rock fragments, but most routine procedures for the estimation soil carbon (C) and nitrogen (N) stocks promote exclusion >2 mm component. This fractioning eliminates ironstone gravel, which is common poorly understood fragment found in Plinthic soils. Thus, purpose this experiment was to study role gravel on C N dynamics two southern Coastal Plain Georgia. Specifically, objective conduct an incubation using ground unground (1) evaluate their mineralization potential, (2) quantify characterize dissolved organic matter (DOM) generated from them, (3) greenhouse gas evolution potential. Results revealed that 1%–5% potentially mineralizable N, both generate CO 2 O. The DOM released upon grinding relatively fresh microbial origin. chemically biologically active component Plain. Disregard fraction where present may result underestimation total has implications accounting agricultural development strategies sequester C.

Language: Английский

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Nitrogen transformation and microbial community interactions in hydrodynamic heterogeneous hyporheic zone sediment: Insights for ecosystem sustainability

Limnologica, Journal Year: 2025, Volume and Issue: unknown, P. 126252 - 126252

Published: April 1, 2025

Language: Английский

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Metagenomics and plant-microbe symbioses: Microbial community dynamics, functional roles in carbon sequestration, nitrogen transformation, sulfur and phosphorus mobilization for sustainable soil health

Biotechnology Advances, Journal Year: 2025, Volume and Issue: 82, P. 108580 - 108580

Published: April 15, 2025

Language: Английский

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Integrating fractional-order derivatives of soil and leaf hyperspectral reflectance for improved estimation of mangrove soil organic carbon

Geoderma, Journal Year: 2025, Volume and Issue: 458, P. 117324 - 117324

Published: May 2, 2025

Language: Английский

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