Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13752 |
Faster turnover of new soil carbon inputs under increased atmospheric CO2 | |
van Groenigen, Kees Jan1,2; Osenberg, Craig W.3; Terrer, Cesar4; Carrillo, Yolima5; Dijkstra, Feike A.6; Heath, James7; Nie, Ming8; Pendall, Elise5; Phillips, Richard P.9; Hungate, Bruce A.1 | |
2017-10-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA; Australia; Peoples R China |
英文摘要 | Rising levels of atmospheric CO2 frequently stimulate plant inputs to soil, but the consequences of these changes for soil carbon (C) dynamics are poorly understood. Plant-derived inputs can accumulate in the soil and become part of the soil C pool ("new soil C"), or accelerate losses of pre-existing ("old") soil C. The dynamics of the new and old pools will likely differ and alter the long-term fate of soil C, but these separate pools, which can be distinguished through isotopic labeling, have not been considered in past syntheses. Using meta-analysis, we found that while elevated CO2 (ranging from 550 to 800 parts per million by volume) stimulates the accumulation of new soil C in the short term (<1 year), these effects do not persist in the longer term (1-4 years). Elevated CO2 does not affect the decomposition or the size of the old soil C pool over either temporal scale. Our results are inconsistent with predictions of conventional soil C models and suggest that elevated CO2 might increase turnover rates of new soil C. Because increased turnover rates of new soil C limit the potential for additional soil C sequestration, the capacity of land ecosystems to slow the rise in atmospheric CO2 concentrations may be smaller than previously assumed. |
英文关键词 | isotopes meta-analysis respiration roots soil carbon turnover |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410642100037 |
WOS关键词 | ELEVATED CO2 ; ORGANIC-MATTER ; N AVAILABILITY ; MYCORRHIZAL COLONIZATION ; MICROBIAL COMMUNITY ; SEMIARID GRASSLAND ; ENRICHMENT POPFACE ; POPLAR PLANTATION ; RESPONSE RATIOS ; ROOT EXUDATION |
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/17777 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Exeter, Coll Life & Environm Sci, Geog, Exeter, Devon, England; 2.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ USA; 3.Univ Georgia, Odum Sch Ecol, Athens, GA 30602 USA; 4.Imperial Coll London, Dept Life Sci, AXA Chair Programme Biosphere & Climate Impacts, Ascot, Berks, England; 5.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW, Australia; 6.Univ Sydney, Sch Life & Environm Sci, Ctr Carbon Water & Food, Eveleigh, NSW, Australia; 7.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England; 8.Fudan Univ, Inst Biodivers Sci, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Shanghai, Peoples R China; 9.Indiana Univ, Dept Biol, Bloomington, IN USA |
推荐引用方式 GB/T 7714 | van Groenigen, Kees Jan,Osenberg, Craig W.,Terrer, Cesar,et al. Faster turnover of new soil carbon inputs under increased atmospheric CO2[J]. GLOBAL CHANGE BIOLOGY,2017,23(10). |
APA | van Groenigen, Kees Jan.,Osenberg, Craig W..,Terrer, Cesar.,Carrillo, Yolima.,Dijkstra, Feike A..,...&Hungate, Bruce A..(2017).Faster turnover of new soil carbon inputs under increased atmospheric CO2.GLOBAL CHANGE BIOLOGY,23(10). |
MLA | van Groenigen, Kees Jan,et al."Faster turnover of new soil carbon inputs under increased atmospheric CO2".GLOBAL CHANGE BIOLOGY 23.10(2017). |
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