Evidence of high carbon biodegradability in the subsoil of Mediterranean croplands

Geoderma, Journal Year: 2025, Volume and Issue: 455, P. 117212 - 117212

Published: Feb. 13, 2025

Language: Английский

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Warming Does Not Change Vertical Variations in Microbial Resource Limitation in Subtropical Forests at China

Forests, Journal Year: 2025, Volume and Issue: 16(3), P. 402 - 402

Published: Feb. 24, 2025

Global warming can differentially alter ecosystem carbon, nitrogen, and phosphorus dynamics, regulating the balance between soil substrate supply microbial metabolic demand. However, empirical research on how influences resource limitation along profile remains limited, particularly in tropical–subtropical regions. Here, we investigated vertical variations (0–60 cm layers) their corresponding responses to subtropical forests southern China, using a experiment with heating cables (+4 °C) enzymatic stoichiometry. Alleviated carbon but aggravated nutrient (nitrogen phosphorus) for metabolism was observed profiles, regardless of treatment. Among different depths, mitigated conditions exacerbated 0–10 surface layer, had no significant effect below 20 depth. Moreover, nitrogen were primarily regulated by moisture fungal–bacterial ratio In contrast, changes driven under ambient conditions, carbon–phosphorus after warming. For soil, effects mainly explained biomass stoichiometry ratio. Overall, diverse entire profile. These findings provide important insights accurately predicting biogeochemical cycles global scenarios.

Language: Английский

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Mechanistic Insights into Farmland Soil Carbon Sequestration: A Review of Substituting Green Manure for Nitrogen Fertilizer

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1042 - 1042

Published: April 26, 2025

Sustainable agricultural intensification requires innovative approaches to simultaneously enhance productivity and mitigate environmental impacts—a challenge critical global food security climate change mitigation. The traditional fertilization system, with a single application of nitrogen fertilizer, while effective for crop yields, often leads soil organic carbon (SOC) depletion, whereas green manure systems offer dual benefit supply SOC sequestration potential. However, the mechanisms by which substitution enhances (SCS) remain systematically underexplored in comparison chemical fertilization. This review examines (1) underlying sequestration, (2) losses associated practices, (3) theoretical foundation practical applications as fertilizer substitute. We provide an in-depth analysis through drives SCS. Furthermore, we identify three areas future investigation: (i) optimization management strategies SCS efficiency; (ii) comprehensive assessment manure’s ecological benefits long-term, multi-scale studies; (iii) evaluation adaptation capacity potential across diverse climatic scenarios. These findings fundamentally advance our understanding role sustainable agriculture establishing its function both source driver. In addition, these insights have immediate relevance policy practice, particularly regions where health storage are prioritized alongside yield.

Language: Английский

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Total nitrogen levels as a key constraint on soil organic carbon stocks across Australian agricultural soils

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121825 - 121825

Published: May 1, 2025

Language: Английский

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Below ground carbon stock of mangrove stands of a mining site in Hinatuan Island, Northeastern Mindanao, Philippines

IOP Conference Series Earth and Environmental Science, Journal Year: 2024, Volume and Issue: 1415(1), P. 012004 - 012004

Published: Dec. 1, 2024

Abstract Mangrove ecosystem provides important services such as storing and sequestering large amount of carbon. However, it faces several anthropogenic pressures especially from resource extractive activities that threatened the ecosystem. Hence, huge companies are obliged to make rehabilitation efforts rehabilitate mangrove they have caused damage. Our study aims determine carbon stock dynamics a rehabilitated site which was damaged due siltation brought by nearby mining. We established plot in (Lipata) near mining area on natural forest (cagutsan) point reference. mean DBH, height estimated soil storage capacities. found out both sites (Cagutsan) stand Rhizophora mucronata is most dominant, has similar dhb 6 cm mostly dominated by. The C content shows gets deeper up 50-100 higher content. There no significant variation terms average 42.63 MgC/Ha 53.59 MgC/Ha. Hence finding supports effectiveness calls for continuous area.

Language: Английский

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Microplastics Generate Less Mineral Protection of Soil Carbon and More CO₂ Emissions

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Microplastic pollution in terrestrial ecosystems threatens to destabilize large soil carbon stocks that help mitigate climate change. Carbon-based substrates can release from microplastics and contribute pools, but how these emerging organic compounds influence mineralization sequestration remains unknown. Here, microcosm experiments are conducted determine the bioavailability of microplastic-derived dissolved matter (MP-DOM) soils its contribution mineral-associated pool. The underlying mechanisms identified by estimating spectroscopic molecular signatures comparing sorption properties on model minerals with natural (NOM). results show MP-DOM leads 21-576% higher CO

Language: Английский

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Biochar improves soil organic carbon sequestration potential in the topsoil and subsoil of a paddy field

Current Research in Environmental Sustainability, Journal Year: 2024, Volume and Issue: 8, P. 100267 - 100267

Published: Jan. 1, 2024

Language: Английский

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