Additionality in Blue Carbon Ecosystems: Recommendations for a Universally Applicable Accounting Methodology

Global Change Biology, Год журнала: 2024, Номер 30(11)

Опубликована: Ноя. 1, 2024

ABSTRACT Blue carbon ecosystems (BCEs) remove dioxide from the atmosphere and store significant amounts of organic (OC) in their soils. Consequently, protection restoration BCEs may contribute to net greenhouse gas emissions abatement help address global challenges both mitigating adapting climate change. An ongoing debate is whether OC sequestered out with blue (BC) project transported its present location (allochthonous) should be counted as ‘additional’. There are inconsistencies treatment allochthonous between BCE methodologies, potentially undermining credibility BC accounting initiatives. To explore these inconsistences, we compare methodologies which were able find online, particular focus on VERRA, IPCC BlueCAM review science underlying any approach account for OC. Our findings indicate that there currently no robust scientific approaches define an appropriate apportioning discounting calculation additionality. We therefore advocate inclusion crediting projects when observational experimental does not support (and discounting) refractory contribution.

Язык: Английский

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Contrasting effects of straw and straw-derived biochar application on soil organic matter and corn yield in a Chinese Mollisol

Journal of Soils and Sediments, Год журнала: 2023, Номер 23(11), С. 3843 - 3856

Опубликована: Июль 3, 2023

Язык: Английский

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Preservation of Soil Iron-Bound Organic Carbon in a Karst Ditch Wetland: A Case Study in Caohai Lake, China

Journal of soil science and plant nutrition, Год журнала: 2024, Номер 24(1), С. 1112 - 1120

Опубликована: Янв. 17, 2024

Язык: Английский

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Rainwater-borne H2O2 accelerates roxarsone degradation and reduces bioavailability of arsenic in paddy rice soils

Journal of Hazardous Materials, Год журнала: 2024, Номер 478, С. 135633 - 135633

Опубликована: Авг. 23, 2024

Язык: Английский

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Variation of soil organic carbon stability in restored mountain marsh wetlands

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Окт. 10, 2024

The replacement of farmland by native hygro-plants is increasingly common globally within the context wetland ecosystem restoration. Understanding long-term effects this on abundance and persistence soil organic carbon (SOC) in mountain marshes important for management. Here, restored plateau Duliu River Wetland Provincial Nature Reserve, China was selected. properties, moisture content (SMC), pH, texture, free-form iron oxides ( $$\:{\text{F}\text{e}}_{\text{d}}$$ ), amorphous $$\:{\text{F}\text{e}}_{\text{o}}$$ mineral-associated (MAOC), iron-bound (Fe-OC) were analyzed topsoil samples (0 ~ 20 cm) during restoration rice paddies to Sphagnum palustre L. wetlands 0, 2, 10, years. Natural also used as control. We found that marsh increased SMC, , / SOC, MAOC, Fe-OC, Fe-OC/SOC, but decreased MAOC/SOC ratio. ratio expectedly lower than proportion labile SOC total period. MAOC higher natural other habitats. Both Fe-OC/SOC positively correlated with negatively pH. . These results emphasized significance reconverting increasing sequestration Fe-OC. Further studies are required identify quantify organo-mineral stabilization mechanisms at different fractionations throughout

Язык: Английский

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A review of properties of organic matter fractions in soils of mangrove wetlands: Implications for carbon storage

Soil Biology and Biochemistry, Год журнала: 2024, Номер unknown, С. 109660 - 109660

Опубликована: Ноя. 1, 2024

Язык: Английский

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Soil depth distribution of particulate organic carbon and nitrogen in the southeastern United States

Agricultural & Environmental Letters, Год журнала: 2024, Номер 9(2)

Опубликована: Ноя. 27, 2024

Abstract Particulate organic matter may be an important component feeding soil microbial activity. This study described population‐level statistics of particulate carbon (C) and nitrogen (N) in predominately Ultisols across 181 farms throughout North Carolina, Virginia, Georgia. Soil profiles were sampled under conventional‐till cropland ( n = 186), no‐till 127), grassland 322), woodland 171). C (g kg −1 soil) varied from 2.0 to 18.0 (5% 95% distribution) at 0‐ 10‐cm depth, 0.4 3.9 10‐ 30‐cm 0.1 1.9 30‐ 60‐cm depth. As a proportion total N, N was 0.26 ± 0.10, 0.12 0.09, 0.08 10‐, 30‐, depths, respectively. most dramatically affected following the order: < woodland. followed similar order, except there no difference between brings vitality along trajectory toward greater matter.

Язык: Английский

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Soil carbon fractionation as a tool to monitor coastal wetland rehabilitation

Journal of Environmental Management, Год журнала: 2024, Номер 373, С. 123950 - 123950

Опубликована: Дек. 31, 2024

Coastal wetland rehabilitation can provide nature-based solutions for climate change mitigation. The high carbon accumulation rate and secured, potentially several millennia, as soil organic (SOC), is among the reasons. Measuring SOC storage accrual over time are main tools to understand success. However, partitioned different matter fractions with varying physio-chemical properties stabilities. In this research, we separated based on density (free light fraction: f-LF, occluded o-LF heavy HF) solubility (dissolved DF) from soils taken a under pristine mangrove forest in Queensland, Australia. f-LF contain particulate (POC

Язык: Английский

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Evaluating permanganate oxidizable carbon (POXC)’s potential for differentiating carbon pools in wetland soils

Ecological Indicators, Год журнала: 2024, Номер 167, С. 112624 - 112624

Опубликована: Сен. 19, 2024

Язык: Английский

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Air-drying causes an alteration in density fractionation of soil materials from organic horizons containing volcanic ash

Discover Soil., Год журнала: 2024, Номер 1(1)

Опубликована: Ноя. 15, 2024

Density fractionation is commonly used to isolate organic matter in soils based on organo-mineral associations. Not only mineral horizons but also contain components. Soil samples for density are sometimes air-dried or freeze-dried, which can introduce unexpected biases the results. In this study, we compared fraction distributions wet, air-dried, and freeze-dried horizon rich reactive Al Fe minerals. On Mt. Chokai, a volcano northern Japan, were collected from three representative vegetation types: K1 (dwarf pine dwarf bamboo at summit), K2 back slope), K3 (snow meadow with predominantly Poaceae foot slope). Wet, subjected sequential using cutoff values of 1.6 1.8 g cm–3. We then determined mass, carbon, total nitrogen isolated fractions. Air-drying altered distribution each fraction. Although observed differences mass wet snow (K3), did not change significantly between samples. Therefore, freeze-drying recommended as pretreatment minimize effects drying fractionation, particularly soil no history, high content, and/or levels

Язык: Английский

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