Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41558-017-0066-9 |
Greenhouse gas emissions from diverse Arctic Alaskan lakes are dominated by young carbon | |
Elder, Clayton D.1; Xu, Xiaomei1; Walker, Jennifer1; Schnell, Jordan L.1,7; Hinkel, Kenneth M.2,8; Townsend-Small, Amy3; Arp, Christopher D.4; Pohlman, John W.5; Gaglioti, Benjamin V.6; Czimczik, Claudia I.1 | |
2018-02-01 | |
发表期刊 | NATURE CLIMATE CHANGE
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ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2018 |
卷号 | 8期号:2页码:166-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate-sensitive Arctic lakes have been identified as conduits for ancient permafrost-carbon (C) emissions and as such accelerate warming. However, the environmental factors that control emission pathways and their sources are unclear; this complicates upscaling, forecasting and climate-impact-assessment efforts. Here we show that current whole-lake CH4 and CO2 emissions from widespread lakes in Arctic Alaska primarily originate from organic matter fixed within the past 3-4 millennia (modern to 3,300 +/- 70 years before the present), and not from Pleistocene permafrost C. Furthermore, almost 100% of the annual diffusive C flux is emitted as CO2. Although the lakes mostly processed younger C (89 +/- 3% of total C emissions), minor contributions from ancient C sources were two times greater in fine-textured versus coarse-textured Pleistocene sediments, which emphasizes the importance of the underlying geological substrate in current and future emissions. This spatially extensive survey considered the environmental and temporal variability necessary to monitor and forecast the fate of ancient permafrost C as Arctic warming progresses. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000423842400021 |
WOS关键词 | PERMAFROST CARBON ; THERMOKARST LAKES ; NORTHERN LAKES ; METHANE EBULLITION ; COASTAL-PLAIN ; THAW LAKES ; WATER ; SLOPE ; ICE ; RADIOCARBON |
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/34477 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.Univ Cincinnati, Dept Geog, Cincinnati, OH USA; 3.Univ Cincinnati, Dept Geol, Cincinnati, OH USA; 4.Univ Alaska, Water & Environm Res Ctr, Fairbanks, AK 99701 USA; 5.USGS Woods Hole Coastal & Marine Sci Ctr, Woods Hole, MA USA; 6.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 7.Northwestern Univ, Dept Earth & Planetary Sci, Evanston, IL USA; 8.Michigan Technol Univ, Geol & Min Engn & Sci, Houghton, MI 49931 USA |
推荐引用方式 GB/T 7714 | Elder, Clayton D.,Xu, Xiaomei,Walker, Jennifer,et al. Greenhouse gas emissions from diverse Arctic Alaskan lakes are dominated by young carbon[J]. NATURE CLIMATE CHANGE,2018,8(2):166-+. |
APA | Elder, Clayton D..,Xu, Xiaomei.,Walker, Jennifer.,Schnell, Jordan L..,Hinkel, Kenneth M..,...&Czimczik, Claudia I..(2018).Greenhouse gas emissions from diverse Arctic Alaskan lakes are dominated by young carbon.NATURE CLIMATE CHANGE,8(2),166-+. |
MLA | Elder, Clayton D.,et al."Greenhouse gas emissions from diverse Arctic Alaskan lakes are dominated by young carbon".NATURE CLIMATE CHANGE 8.2(2018):166-+. |
条目包含的文件 | 条目无相关文件。 |
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