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DOI | 10.1038/s41561-020-0607-0 |
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming | |
Keuper, Frida1,2; Wild, Birgit3,4,5; Kummu, Matti6; Beer, Christian3,4,7,8; Blume-Werry, Gesche2,9; Fontaine, Sebastien10; Gavazov, Konstantin2,11; Gentsch, Norman12; Guggenberger, Georg12,13; Hugelius, Gustaf4,14; Jalava, Mika6; Koven, Charles15; Krab, Eveline J.2,16; Kuhry, Peter4,14; Monteux, Sylvain2; Richter, Andreas17,18; Shahzad, Tanvir19; Weedon, James T.20; Dorrepaal, Ellen2 | |
2020-07-20 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2020 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | France; Sweden; Finland; Germany; Switzerland; Russia; USA; Austria; Pakistan; Netherlands |
英文摘要 | As global temperatures continue to rise, a key uncertainty of climate projections is the microbial decomposition of vast organic carbon stocks in thawing permafrost soils. Decomposition rates can accelerate up to fourfold in the presence of plant roots, and this mechanism-termed the rhizosphere priming effect-may be especially relevant to thawing permafrost soils as rising temperatures also stimulate plant productivity in the Arctic. However, priming is currently not explicitly included in any model projections of future carbon losses from the permafrost area. Here, we combine high-resolution spatial and depth-resolved datasets of key plant and permafrost properties with empirical relationships of priming effects from living plants on microbial respiration. We show that rhizosphere priming amplifies overall soil respiration in permafrost-affected ecosystems by similar to 12%, which translates to a priming-induced absolute loss of similar to 40 Pg soil carbon from the northern permafrost area by 2100. Our findings highlight the need to include fine-scale ecological interactions in order to accurately predict large-scale greenhouse gas emissions, and suggest even tighter restrictions on the estimated 200 Pg anthropogenic carbon emission budget to keep global warming below 1.5 degrees C. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000550620700001 |
WOS关键词 | ORGANIC-MATTER ; ARCTIC VEGETATION ; USE EFFICIENCY ; CLIMATE-CHANGE ; ROOT ; DECOMPOSITION ; AVAILABILITY ; RESPIRATION ; TEMPERATURE ; NITROGEN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
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/286783 |
专题 | 地球科学 气候变化 |
作者单位 | 1.INRAE, BioEcoAgro Joint Res Unit, Barenton Bugny, France; 2.Umea Univ, Climate Impacts Res Ctr, Dept Ecol & Environm Sci, Abisko, Sweden; 3.Stockholm Univ, Dept Environm Sci, Stockholm, Sweden; 4.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden; 5.Univ Gothenburg, Dept Earth Sci, Gothenburg, Sweden; 6.Aalto Univ, Water & Dev Res Grp, Espoo, Finland; 7.Univ Hamburg, Inst Soil Sci, Dept Earth Sci, Hamburg, Germany; 8.Univ Hamburg, Ctr Earth Syst Res & Sustainabil, Hamburg, Germany; 9.Greifswald Univ, Inst Bot & Landscape Ecol, Expt Plant Ecol, Greifswald, Germany; 10.INRAE, UMR Ecosyst Prairial, VetAgro Sup, Clermont Ferrand, France; 11.Swiss Fed Inst Forest Snow & Landscape Res WSL, Lausanne, Switzerland; 12.Leibniz Univ Hannover, Inst Soil Sci, Hannover, Germany; 13.VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia; 14.Stockholm Univ, Dept Phys Geog, Stockholm, Sweden; 15.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA USA; 16.Swedish Univ Agr Sci, Dept Soil & Environm, Uppsala, Sweden; 17.Univ Vienna, Ctr Microbiol & Environm Syst Sci, Vienna, Austria; 18.Int Inst Appl Syst Anal, Laxenburg, Austria; 19.Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad, Pakistan; 20.Vrije Univ Amsterdam, Dept Ecol Sci, Syst Ecol, Amsterdam, Netherlands |
推荐引用方式 GB/T 7714 | Keuper, Frida,Wild, Birgit,Kummu, Matti,et al. Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming[J]. NATURE GEOSCIENCE,2020. |
APA | Keuper, Frida.,Wild, Birgit.,Kummu, Matti.,Beer, Christian.,Blume-Werry, Gesche.,...&Dorrepaal, Ellen.(2020).Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming.NATURE GEOSCIENCE. |
MLA | Keuper, Frida,et al."Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming".NATURE GEOSCIENCE (2020). |
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