Half of land use carbon emissions in Southeast Asia can be mitigated through peat swamp forest and mangrove conservation and restoration

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 28, 2025

Language: Английский

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Mapping peat thickness and carbon stocks of the central Congo Basin using field data

Nature Geoscience, Journal Year: 2022, Volume and Issue: 15(8), P. 639 - 644

Published: July 21, 2022

The world's largest tropical peatland complex is found in the central Congo Basin. However, there a lack of situ measurements to understand peatland's distribution and amount carbon stored it. So far, peat this region has been sampled only largely rain-fed interfluvial basins north Republic Congo. Here we present first extensive field surveys Democratic Congo, which covers two-thirds estimated area, including from previously undocumented river-influenced settings. We use data both countries compute spatial models thickness (mean 1.7 ± 0.9 m; maximum 5.6 m) density 1,712 634 MgC ha−1; 3,970 ha−1) for show that 167,600 km2, 36% 29.0 PgC below ground across (95% confidence interval, 26.3–32.2 PgC). Our measurement-based constraints give high globally significant stocks Basin, totalling approximately 28% carbon. Only 8% lies within nationally protected areas, suggesting its vulnerability future land-use change. Field suggest peatlands Basin are stocks, storing

Language: Английский

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Using machine learning algorithms to predict groundwater levels in Indonesian tropical peatlands

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 857, P. 159701 - 159701

Published: Oct. 26, 2022

Language: Английский

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Global peatland greenhouse gas dynamics: state of the art, processes, and perspectives

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Natural peatlands regulate greenhouse gas (GHG) fluxes through a permanently high groundwater table, causing carbon dioxide (CO2) assimilation but methane (CH4) emissions due to anaerobic conditions. By contrast, drained and disturbed are hotspots for CO2 nitrous oxide (N2O) emissions, while CH4 release is low from drainage ditches. Generally, in low-latitude (tropical subtropical) peatlands, of all GHGs higher than high-latitude (temperate, boreal, Arctic) peatlands. Their inherent dependence on the water regime makes highly vulnerable both direct indirect anthropogenic impacts, including climate change-induced drying, which creating anthro-natural ecosystems. This paper presents state-of-the-art knowledge peatland GHG their key regulating processes, highlighting approaches study spatio-temporal dynamics, integrated methods, human peatlands' perspectives.

Language: Английский

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Degradability and remineralization of peat-derived terrestrial dissolved organic carbon in the Sunda Shelf Sea

Aquatic Sciences, Journal Year: 2025, Volume and Issue: 87(2)

Published: Feb. 18, 2025

Language: Английский

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Using hydrological modelling to improve the Fire Weather Index system over tropical peatlands of peninsular Malaysia, Sumatra and Borneo

International Journal of Wildland Fire, Journal Year: 2025, Volume and Issue: 34(2)

Published: Feb. 19, 2025

Background Tropical peatland fires contribute to global carbon emissions and air pollution. Aims Enhance the globally used Canadian Fire Weather Index (FWI) system specifically over drained undrained tropical peatlands in southeast Asia. Methodology We included simulated hydrology FWI, creating a new peatland-specific version of FWI (FWIpeat). FWIpeat, original (FWIref) drought code (DC) were evaluated against satellite-based active fire occurrence from 2002 2018. Key results The DC shows superior performance explaining peatlands. Over peatlands, FWIpeat show similar results, both outperforming FWIref. A comparison with an earlier study boreal indicates much smaller improvements for possibly due lower accuracy hydrological input data. Conclusions Our highlight importance including information on deeper soil layers, i.e. or groundwater table, when assessing danger. Implications Although this offers promising approach operational management we emphasise need further research refine data explore additional constraints Earth observation

Language: Английский

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How nutrient loads influence microbial-derived carbon accumulation in wetlands: A new insight from microbial metabolic investment strategies

Environmental Research, Journal Year: 2022, Volume and Issue: 217, P. 114981 - 114981

Published: Nov. 29, 2022

Language: Английский

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State of Climate Action 2023

Published: Nov. 1, 2023

The State of Climate Action 2023 provides the world’s most comprehensive roadmap how to close gap in climate action across sectors limit global warming 1.5°C. It finds that recent progress toward 1.5°C-aligned targets isn’t happening at pace and scale necessary highlights where must urgently accelerate this decade reduce greenhouse gas emissions, up carbon removal increase finance.

Language: Английский

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Refining greenhouse gas emission factors for Indonesian peatlands and mangroves to meet ambitious climate targets

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(17)

Published: April 15, 2024

For countries’ emission-reduction efforts under the Paris Agreement to be effective, baseline emission/removals levels and reporting must as transparent accurate possible. Indonesia, which holds among largest area of tropical peatlands mangrove forest in world, it is particularly important for these high-carbon ecosystems produce high-accuracy greenhouse gas inventory improve national reference emissions level/forest level. Here, we highlight opportunity refining emission factors (EF) mangroves describe scientific challenges support climate policy processes where 55 59% reduction targets by 2030 depend on mitigation Forestry Other Land Use. Based stock-difference flux change approaches, examine higher-tier EF drained rewetted peatland, peatland fires, conversions, future Indonesia. We suggest that refinements will essential Indonesia achieving Forest Use net sink zero 2060 or earlier.

Language: Английский

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CH₄ and N₂O emissions from smallholder agricultural systems on tropical peatlands in Southeast Asia

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(15), P. 4279 - 4297

Published: April 27, 2023

There are limited data for greenhouse gas (GHG) emissions from smallholder agricultural systems in tropical peatlands, with non-CO

Language: Английский

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