Contrasting pathways of carbon sequestration in paddy and upland soils

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(11), P. 2478 - 2490

Published: March 13, 2021

Paddy soils make up the largest anthropogenic wetlands on earth, and are characterized by a prominent potential for organic carbon (C) sequestration. By quantifying plant- microbial-derived C in across four climate zones, we identified that accrual is achieved via contrasting pathways paddy upland soils. Paddies 39%-127% more efficient soil (SOC) sequestration than their adjacent counterparts, with greater differences warmer cooler climates. Upland replenished C, whereas enriched proportion of plant-derived because retarded microbial decomposition under anaerobic conditions induced flooding paddies. Under both land-use types, maximal contribution plant residues to SOC at intermediate mean annual temperature (15-20°C), neutral (pH~7.3), low clay/sand ratio. contrast, high (~24°C), pH (~5), large ratio favorable strengthening necromass. The necromass waterlogged paddies climates likely due fast anabolism from bacteria, fungi unlikely be involved as they aerobic. In scenario conversion upland, total 504 Tg may lost CO

Language: Английский

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Climate change: Strategies for mitigation and adaptation

The Innovation Geoscience, Journal Year: 2023, Volume and Issue: 1(1), P. 100015 - 100015

Published: Jan. 1, 2023

<p>The sustainability of life on Earth is under increasing threat due to human-induced climate change. This perilous change in the Earth's caused by increases carbon dioxide and other greenhouse gases atmosphere, primarily emissions associated with burning fossil fuels. Over next two three decades, effects change, such as heatwaves, wildfires, droughts, storms, floods, are expected worsen, posing greater risks human health global stability. These trends call for implementation mitigation adaptation strategies. Pollution environmental degradation exacerbate existing problems make people nature more susceptible In this review, we examine current state from different perspectives. We summarize evidence Earth’s spheres, discuss emission pathways drivers analyze impact health. also explore strategies highlight key challenges reversing adapting change.</p>

Language: Английский

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Bait input altered microbial community structure and increased greenhouse gases production in coastal wetland sediment

Water Research, Journal Year: 2022, Volume and Issue: 218, P. 118520 - 118520

Published: April 29, 2022

Language: Английский

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Coastal blue carbon in China as a nature-based solution toward carbon neutrality

The Innovation, Journal Year: 2023, Volume and Issue: 4(5), P. 100481 - 100481

Published: July 21, 2023

To achieve the Paris Agreement, China pledged to become "Carbon Neutral" by 2060s. In addition massive decarbonization, this would require significant changes in ecosystems toward negative CO

Language: Английский

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Biogeochemical coupling of C/Fe in oil-polluted wetlands associated with iron reduction

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Feb. 3, 2025

Oil contamination in coastal wetlands jeopardizes these ecosystems and worsens climate warming. Here we analyze 87 metagenomic samples from representative Chinese wetland oilfields find that genes associated with dissimilatory iron reduction respond to hydrocarbon levels. These were closely linked the breakdown of organic matter into carbon dioxide methane, highlighting potential for degrading stubborn hydrocarbons altering electron transfer pathways. Notably, Geobacter, a key genus reduction, showed strong correlation iron(II) production degradation. To validate findings, targeted enhancement external oxide Geobacter maximized removal, transforming organic-bound fraction carbonate-bound fraction. The intensified process reduced methane emissions by 38–40% strengthened microbial interactions redirecting flow. Our study innovatively mitigates pollution reduces oil-contaminated wetlands. Microorganisms play an important role degradation petroleum-hydrocarbon oil-polluted through bio-geo-coupling Fe(II), according analysis oilfields.

Language: Английский

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The role of humic substances in mitigating greenhouse gases emissions: Current knowledge and research gaps

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 750, P. 141677 - 141677

Published: Aug. 16, 2020

Language: Английский

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Roles and opportunities for microbial anaerobic oxidation of methane in natural and engineered systems

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(9), P. 4803 - 4830

Published: Jan. 1, 2021

Anaerobic oxidation of methane (AOM) is a crucial bioprocess in global mitigation. Adoption AOM an engineered system provides opportunity for the development methane-based biotechnologies.

Language: Английский

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The anaerobic oxidation of methane in paddy soil by ferric iron and nitrate, and the microbial communities involved

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 788, P. 147773 - 147773

Published: May 15, 2021

Language: Английский

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Active metabolic pathways of anaerobic methane oxidation in paddy soils

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 156, P. 108215 - 108215

Published: March 18, 2021

Language: Английский

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Influence of modified biochar supported sulfidation of nano-zero-valent-iron (S-nZVI/BC) on nitrate removal and greenhouse gas emission in constructed wetland

Journal of Environmental Sciences, Journal Year: 2022, Volume and Issue: 125, P. 568 - 581

Published: March 8, 2022

Language: Английский

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