Schlagwort: soil carbon sequestration

Slessarev et al. (2026): Assessing the Effect of a Deep-Rooted Grass on Belowground Carbon Storage in Cultivated Land: Insights From a Multi-Site US Study

Eric W. Slessarev, Jennifer Pett-Ridge, Kyungjin Min, Asmeret Asefaw Berhe, Srabani Das, Randall D. Jackson, Julie D. Jastrow, Megan Kan, Sandeep Kumar, Todd Longbottom, Karis J. McFarlane, Erik Oerter, Brian K. Richards, G. Philip Robertson, Gregg R. Sanford, Erin E. Nuccio, IN: Earth’s Future, https://doi.org/10.1029/2025EF007102

Agriculture depletes soil organic carbon (SOC), partly due to the exclusion of deep-rooted perennials. Reintroducing deep-rooted perennials to cultivated land may help to mitigate SOC loss. The authors quantified the effect of deep roots on SOC by comparing 8 to 30 year-old stands of switchgrass (Panicum virgatum L.) with paired annual row crop fields at 12 sites across the central and eastern USA.

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Shi et al. (2026): Soil carbon sequestration exhibits differential mechanisms in two textured paddy soils under long-term green manuring

Siwei Shi, Danna Chang, Guopeng Zhou, Songjuan Gao, Ting Liang, Jun Nie, Jing Huang, and Weidong Cao, IN: Agriculture, Ecosystems & Environment, https://doi.org/10.1016/j.agee.2026.110342

Green manure-rice rotation is an effective strategy for enhancing crop productivity and increasing soil organic carbon (SOC) stocks. However, the mechanisms driving SOC accumulation in functionally distinct fractions remain unclear. This study examined the response of particulate and mineral-associated organic carbon (POC and MAOC) to a green manure-rice-rice (GM) rotation in two long-term field experiments with contrasting clay contents (silty clay loam and silt loam).

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Wu et al. (2026): Laboratory incubation reveals greater soil carbon stabilization by coniferous leaf litter than by broadleaf leaf litter despite slower decomposition

Panpan Wu, Ting Wu, Yun Zhang, Yidong Ding, Zhanfeng Liu, Rong Mao, IN: Journal of Plant Ecology, https://doi.org/10.1093/jpe/rtag040

Plant growth forms influence soil organic carbon (SOC) turnover through litter quality, yet their impacts on SOC formation pathways (particulate [POC] vs. mineral-associated [MAOC]) remain poorly understood in forest ecosystems. The authors collected leaf litter of deciduous broadleaf (4 species), evergreen broadleaf (5 species), and evergreen coniferous trees (3 species) in a subtropical forest. Using natural δ13C abundance, they traced litter-derived carbon flows into POC and MAOC pools during a 360-day laboratory incubation. Despite 18–32% lower mass loss, coniferous litter contributed 1.4- to 2.1-fold more to net SOC accumulation than broadleaf litter.

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Ihasusta et al. (2026): Choosing the appropriate methodology to monitor soil organic carbon (SOC) in croplands: aligning methods with evolving monitoring reporting verification (MRV) frameworks

Ainhoa Ihasusta, Ahmad Al Bitar, Niels H. Batjes, Fenny van Egmond et al., IN: Taylor & Francis, https://doi.org/10.1080/17583004.2026.2638317

Monitoring soil organic carbon (SOC) has gained significant recognition, not only for national greenhouse gas inventories but also for voluntary carbon markets and agri-environmental policies. This has amplified the need for accurate, continuous, and cost-effective SOC stock monitoring from field to national scales. Consequently, methodological frameworks have emerged to address these diverse needs. They rely on measurement and/or modeling of the SOC, considering several complexities (Tiers 1, 2 and 3), combined or not with remote sensing. However, practical implementation guidelines for choosing the most suitable monitoring approach for specific contexts and purposes remain incomplete. Therefore, this study analyses current SOC monitoring methodologies for croplands and proposes a decision tree to help MRV stakeholders select the monitoring strategy considered most appropriate for their context.

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Ihasusta et al. (2026): Choosing the appropriate methodology to monitor soil organic carbon (SOC) in croplands: aligning methods with evolving monitoring reporting verification (MRV) frameworks

Ainhoa Ihasusta, Ahmad Al Bitar, Niels H. Batjes, Fenny van Egmond et al., IN: Carbon Management, https://doi.org/10.1080/17583004.2026.2638317

Monitoring soil organic carbon (SOC) has gained significant recognition, not only for national greenhouse gas inventories but also for voluntary carbon markets and agri-environmental policies. This has amplified the need for accurate, continuous, and cost-effective SOC stock monitoring from field to national scales. Consequently, methodological frameworks have emerged to address these diverse needs. They rely on measurement and/or modeling of the SOC, considering several complexities (Tiers 1, 2 and 3), combined or not with remote sensing. However, practical implementation guidelines for choosing the most suitable monitoring approach for specific contexts and purposes remain incomplete. Therefore, this study analyses current SOC monitoring methodologies for croplands and proposes a decision tree to help MRV stakeholders select the monitoring strategy considered most appropriate for their context.

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te Pas (2026): Towards “set-in-stone” co-deployment of enhanced rock weathering and biochar: an experimental study on their CO₂ removal and agronomic co-benefits

Emily E.E.M. te Pas, IN: Wageningen University, https://doi.org/10.18174/681512

To limit global temperature rise well below 2⁰C, Carbon Dioxide (CO₂) Removal (CDR) strategies, such as Enhanced Rock Weathering (ERW) and biochar, are urgently required. Besides CDR, ERW releases nutrients and trace metals, while biochar surfaces may bind these weathering products. The main objective of this research was to experimentally study whether and through which processes ERW, and biochar co-deployment, can promote carbon sequestration, while limiting trace metal risks and providing agronomic co-benefits.

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Huang et al. (2026): Regulation of Water-Soluble Salt Ions by Plantations to Enhance Carbon Sequestration in Coastal Saline-Alkali Soils

Kaiwen Huang, Jiajun Ou, Wenyi Zhou, Rui Tan, Xin Liu, Ke Huang, Jinling Wang, Jie Lin, IN: Land Degradation & Development, https://doi.org/10.1002/ldr.70501

Soil carbon stability is critical for global carbon balance and ecosystem sustainability. Coastal saline-alkali lands have great potential for carbon sequestration, yet the mechanisms by which water-soluble salt ions regulate soil carbon dynamics remain unclear. To elucidate this relationship, this study systematically evaluated the co-variations among water-soluble salt ion distribution, soil chemical properties, and carbon fractions within the 0–100 cm soil profile under different plantation types (Taxodium hybrid “Zhongshanshan”, Carya cathayensis, and Ulmus parvifolia) in coastal saline-alkali land. The objective was to reveal the regulatory mechanisms of salt ions on soil carbon processes.

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te Pas et al. (2026): Enhanced weathering and biochar co-deployment boosts CO₂ sequestration through changing soil properties

Emily E.E.M. te Pas, Rob N.J. Comans, Sarai Bisseling and Mathilde Hagens, IN: Geoderma, https://doi.org/10.1016/j.geoderma.2025.117668

Enhanced rock weathering (ERW) and biochar are potentially effective and scalable options for large-scale carbon dioxide removal (CDR), required to limit global temperature rise to 1.5 °C. Here the authors present experimental data on their co-deployment, an urgent and novel research direction that may render even larger CDR on multiple timescales.

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Samanta et al. (2026): Sequestration of Carbon to Acquire Carbon Credit and Minimization of Potent Greenhouse Gases

Kousik Samanta, Madhurima Banik and Aminul Islam, IN: Environment and Ecology, https://doi.org/10.60151/envec/IOTI5134

The escalating global population, coupled with increased urbanization and industrialization, is placing immense strain on natural resources and exacerbating climate change through greenhouse gas (GHG) emissions. Primary sources of these emissions include the burning of fossil fuels, deforestation, and intensive agricultural practices, all of which release significant quantities of carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O). Soil organic carbon (SOC), representing the largest terrestrial carbon reservoir, is crucial in climate change mitigation as it sequesters atmospheric carbon. This study aims to assess the capacity of soil carbon sequestration and carbon credit mechanisms to reduce GHG emissions, enhance soil health, and foster sustainable agriculture.

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Gholamahmadi & Kammann (2026): Biochar for durable carbon removal: soil erosion reduction as a key mechanism

Behrouz Gholamahmadi and Claudia Kammann, IN: Biochar, https://doi.org/10.1016/j.bmf.2026.100020

Soil erosion is a major pathway of physical soil organic carbon (SOC) loss and a critical threat to the permanence of land-based carbon dioxide removal (CDR). Biochar is widely recognised as a durable carbon sink, yet its hydrological effects and erosion-mitigation potential remain undervalued in CDR frameworks. Here the authors synthesise global evidence and long-term Mediterranean experiments to show that hydrological improvements—an enhanced soil sponge function—are not ancillary co-benefits but a core mechanism supporting carbon durability.

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