Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14069 |
Impact of priming on global soil carbon stocks | |
Guenet, Bertrand1; Camino-Serrano, Marta2; Ciais, Philippe1; Tifafi, Marwa1; Maignan, Fabienne1; Soong, Jennifer L.2; Janssens, Ivan A.2 | |
2018-05-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:5页码:1873-1883 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Belgium |
英文摘要 | Fresh carbon input (above and belowground) contributes to soil carbon sequestration, but also accelerates decomposition of soil organic matter through biological priming mechanisms. Currently, poor understanding precludes the incorporation of these priming mechanisms into the global carbon models used for future projections. Here, we show that priming can be incorporated based on a simple equation calibrated from incubation and verified against independent litter manipulation experiments in the global land surface model, ORCHIDEE. When incorporated into ORCHIDEE, priming improved the model's representation of global soil carbon stocks and decreased soil carbon sequestration by 51% (12 +/- 3 Pg C) during the period 1901-2010. Future projections with the same model across the range of CO2 and climate changes defined by the IPCC-RCP scenarios reveal that priming buffers the projected changes in soil carbon stocks-both the increases due to enhanced productivity and new input to the soil, and the decreases due to warming-induced accelerated decomposition. Including priming in Earth system models leads to different projections of soil carbon changes, which are challenging to verify at large spatial scales. |
英文关键词 | carbon cycle climate change land surface model priming RCP scenario |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428879800005 |
WOS关键词 | EARTH SYSTEM MODELS ; ATMOSPHERIC CO2 ; ORGANIC-MATTER ; DECOMPOSITION ; TERRESTRIAL ; CLIMATE ; MECHANISMS ; TURNOVER ; DIOXIDE ; CMIP5 |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/16797 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Paris Saclay, CNRS, UVSQ, LSCE,IPSL,CEA, Gif Sur Yvette, France; 2.Univ Antwerp, Res Grp Plant & Vegetat Ecol, Dept Biol, Antwerp, Belgium |
推荐引用方式 GB/T 7714 | Guenet, Bertrand,Camino-Serrano, Marta,Ciais, Philippe,et al. Impact of priming on global soil carbon stocks[J]. GLOBAL CHANGE BIOLOGY,2018,24(5):1873-1883. |
APA | Guenet, Bertrand.,Camino-Serrano, Marta.,Ciais, Philippe.,Tifafi, Marwa.,Maignan, Fabienne.,...&Janssens, Ivan A..(2018).Impact of priming on global soil carbon stocks.GLOBAL CHANGE BIOLOGY,24(5),1873-1883. |
MLA | Guenet, Bertrand,et al."Impact of priming on global soil carbon stocks".GLOBAL CHANGE BIOLOGY 24.5(2018):1873-1883. |
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