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DOI | 10.1038/s41561-019-0403-x |
Global fire emissions buffered by the production of pyrogenic carbon | |
Jones, Matthew W.1,4; Santin, Cristina1,2; van der Werf, Guido R.3; Doerr, Stefan H.1 | |
2019-09-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:9页码:742-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Wales; Netherlands; England |
英文摘要 | Landscape fires burn 3-5 million km(2) of the Earth's surface annually. They emit 2.2 Pg of carbon per year to the atmosphere, but also convert a significant fraction of the burned vegetation biomass into pyrogenic carbon. Pyrogenic carbon can be stored in terrestrial and marine pools for centuries to millennia and therefore its production can be considered a mechanism for longterm carbon sequestration. Pyrogenic carbon stocks and dynamics are not considered in global carbon cycle models, which leads to systematic errors in carbon accounting. Here we present a comprehensive dataset of pyrogenic carbon production factors from field and experimental fires and merge this with the Global Fire Emissions Database to quantify the global pyrogenic carbon production flux. We found that 256 (uncertainty range: 196-340) Tg of biomass carbon was converted annually into pyrogenic carbon between 1997 and 2016. Our central estimate equates to 12% of the annual carbon emitted globally by landscape fires, which indicates that their emissions are buffered by pyrogenic carbon production. We further estimate that cumulative pyrogenic carbon production is 60 Pg since 1750, or 33-40% of the global biomass carbon lost through land use change in this period. Our results demonstrate that pyrogenic carbon production by landscape fires could be a significant, but overlooked, sink for atmospheric CO2. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484058100015 |
WOS关键词 | BLACK CARBON ; ORGANIC-MATTER ; BURNED AREA ; SATELLITE-OBSERVATIONS ; ATMOSPHERIC CO2 ; LAND-USE ; BOREAL ; SOIL ; CHARCOAL ; FOREST |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186885 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Swansea Univ, Coll Sci, Geog Dept, Swansea, W Glam, Wales; 2.Swansea Univ, Coll Sci, Biosci Dept, Swansea, W Glam, Wales; 3.Vrije Univ, Fac Sci, Amsterdam, Netherlands; 4.Univ East Anglia, Tyndall Ctr Climate Change Res, Norwich, Norfolk, England |
推荐引用方式 GB/T 7714 | Jones, Matthew W.,Santin, Cristina,van der Werf, Guido R.,et al. Global fire emissions buffered by the production of pyrogenic carbon[J]. NATURE GEOSCIENCE,2019,12(9):742-+. |
APA | Jones, Matthew W.,Santin, Cristina,van der Werf, Guido R.,&Doerr, Stefan H..(2019).Global fire emissions buffered by the production of pyrogenic carbon.NATURE GEOSCIENCE,12(9),742-+. |
MLA | Jones, Matthew W.,et al."Global fire emissions buffered by the production of pyrogenic carbon".NATURE GEOSCIENCE 12.9(2019):742-+. |
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