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

Water Research, Год журнала: 2025, Номер 275, С. 123174 - 123174

Опубликована: Янв. 21, 2025

Язык: Английский

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

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Ноя. 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

Язык: Английский

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

Environmental Research, Год журнала: 2025, Номер unknown, С. 121327 - 121327

Опубликована: Март 1, 2025

Язык: Английский

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

Plants, Год журнала: 2025, Номер 14(6), С. 927 - 927

Опубликована: Март 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.

Язык: 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, Год журнала: 2025, Номер 456, С. 117250 - 117250

Опубликована: Март 23, 2025

Язык: Английский

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Biochemical Transformation of Nitrogen Reactive Species in the Vadose Zone

Water Conservation Science and Engineering, Год журнала: 2025, Номер 10(1)

Опубликована: Март 21, 2025

Язык: 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, Год журнала: 2025, Номер 89(2)

Опубликована: Март 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.

Язык: Английский

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

Limnologica, Год журнала: 2025, Номер unknown, С. 126252 - 126252

Опубликована: Апрель 1, 2025

Язык: 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, Год журнала: 2025, Номер 82, С. 108580 - 108580

Опубликована: Апрель 15, 2025

Язык: Английский

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

Geoderma, Год журнала: 2025, Номер 458, С. 117324 - 117324

Опубликована: Май 2, 2025

Язык: Английский

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