Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41558-018-0087-z |
Mitigation potential of soil carbon management overestimated by neglecting N2O emissions | |
Lugato, Emanuele; Leip, Adrian; Jones, Arwyn | |
2018-03-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2018 |
卷号 | 8期号:3页码:219-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | International initiatives such as the '4 per 1000' are promoting enhanced carbon (C) sequestration in agricultural soils as a way to mitigate greenhouse gas emissions1. However, changes in soil organic C turnover feed back into the nitrogen (N) cycle(2), meaning that variation in soil nitrous oxide (N2O) emissions may offset or enhance C sequestration actions(3). Here we use a biogeochemistry model on approximately 8,000 soil sampling locations in the European Union(4) to quantify the net CO2 equivalent (CO(2)e) fluxes associated with representative C-mitigating agricultural practices. Practices based on integrated crop residue retention and lower soil disturbance are found to not increase N2O emissions as long as C accumulation continues (until around 2040), thereafter leading to a moderate C sequestration offset mostly below 47% by 2100. The introduction of N-fixing cover crops allowed higher C accumulation over the initial 20 years, but this gain was progressively offset by higher N2O emissions over time. By 2060, around half of the sites became a net source of greenhouse gases. We conclude that significant CO2 mitigation can be achieved in the initial 20-30 years of any C management scheme, but after that N inputs should be controlled through appropriate management. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000426308500018 |
WOS关键词 | EUROPEAN AGRICULTURAL SOILS ; NITROUS-OXIDE EMISSIONS ; COVER CROPS ; CLIMATE-CHANGE ; METAANALYSIS ; DYNAMICS ; SEQUESTRATION ; MODEL ; CHALLENGES ; WATER |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/34545 |
专题 | 资源环境科学 |
作者单位 | European Commiss, Joint Res Ctr, Directorate Sustainable Resources, Ispra, Italy |
推荐引用方式 GB/T 7714 | Lugato, Emanuele,Leip, Adrian,Jones, Arwyn. Mitigation potential of soil carbon management overestimated by neglecting N2O emissions[J]. NATURE CLIMATE CHANGE,2018,8(3):219-+. |
APA | Lugato, Emanuele,Leip, Adrian,&Jones, Arwyn.(2018).Mitigation potential of soil carbon management overestimated by neglecting N2O emissions.NATURE CLIMATE CHANGE,8(3),219-+. |
MLA | Lugato, Emanuele,et al."Mitigation potential of soil carbon management overestimated by neglecting N2O emissions".NATURE CLIMATE CHANGE 8.3(2018):219-+. |
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