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| DOI | 10.1038/s43247-024-01459-8 |
| Underestimation of carbon dioxide emissions from organic-rich agricultural soils | |
| 发表日期 | 2024 |
| EISSN | 2662-4435 |
| 起始页码 | 5 |
| 结束页码 | 1 |
| 卷号 | 5期号:1 |
| 英文摘要 | Organic-rich agricultural soils, including drained peatlands, are hotspots for biogenic CO2 emissions. Due to microbial mineralisation, the organic carbon (OC) content of these soils transitions to that of mineral soils, but it remains unclear how the residual OC content controls the rate of CO2 emission. Here we show that area-scaled CO2 emissions from topsoils with >6% OC are not controlled by OC content and OC density in a comprehensive laboratory incubation experiment. National greenhouse gas inventories assign area-scaled CO2 emission factors to soils with >12% OC, while soils with 6-12% OC are mostly disregarded or treated with lower emission factors. In this respect, our results suggest that CO2 emissions from organic soils could be underestimated by up to 40% in the Danish national inventory submission to the United Nations Framework Convention on Climate Change (UNFCCC). We conclude that global underestimation of area-scaled CO2 emissions from 6-12% OC soils occurs in countries with large proportions of organic soils in transition from organic to organo-mineral soils due to agricultural management. Refining CO2 emission estimates for 6-12% OC soils is critical for the accuracy of national inventories, but also for recognising the climate benefits of initiatives to rewet drained organic soils. |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001236171100003 |
| 来源期刊 | COMMUNICATIONS EARTH & ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/294185 |
| 作者单位 | Aarhus University; Swiss Federal Research Station Agroscope |
| 推荐引用方式 GB/T 7714 | . Underestimation of carbon dioxide emissions from organic-rich agricultural soils[J],2024,5(1). |
| APA | (2024).Underestimation of carbon dioxide emissions from organic-rich agricultural soils.COMMUNICATIONS EARTH & ENVIRONMENT,5(1). |
| MLA | "Underestimation of carbon dioxide emissions from organic-rich agricultural soils".COMMUNICATIONS EARTH & ENVIRONMENT 5.1(2024). |
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