Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NGEO2920 |
Microbially driven export of labile organic carbon from the Greenland ice sheet | |
Musilova, Michaela1,3,4; Tranter, Martyn1; Wadham, Jemma1; Telling, Jon1; Tedstone, Andrew1,2; Anesio, Alexandre M.1 | |
2017-05-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Scotland; Slovakia |
英文摘要 | Glaciers and ice sheets are significant sources of dissolved organic carbon and nutrients to downstream subglacial and marine ecosystems. Climatically driven increases in glacial runoff are expected to intensify the impact of exported nutrients on local and regional downstream environments. However, the origin and bioreactivity of dissolved organic carbon from glacier surfaces are not fully understood. Here, we present simultaneous measurements of gross primary production, community respiration, dissolved organic carbon composition and export from different surface habitats of the Greenland ice sheet, throughout the ablation season. We found that microbial production was significantly correlated with the concentration of labile dissolved organic species in glacier surface meltwater. Further, we determined that freely available organic compounds made up 62% of the dissolved organic carbon exported from the glacier surface through streams. We therefore conclude that microbial communities are the primary driver for labile dissolved organic carbon production and recycling on glacier surfaces, and that glacier dissolved organic carbon export is dependent on active microbial processes during the melt season. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400407000013 |
WOS关键词 | CRYOCONITE HOLES ; FLUORESCENCE SPECTROSCOPY ; MATTER ; GLACIERS ; ECOSYSTEM ; MARINE ; COMMUNITY ; DIVERSITY ; EVOLUTION ; MELTWATER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/34903 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Bristol, Sch Geog Sci, Bristol Glaciol Ctr, Bristol BS8 1SS, Avon, England; 2.Univ Edinburgh, Sch Geosci, Edinburgh EH9 3FE, Midlothian, Scotland; 3.SOSA, Bratislava 81219, Slovakia; 4.Slovak Univ Technol Bratislava, Fac Elect Engn & Informat Technol, Bratislava 81219, Slovakia |
推荐引用方式 GB/T 7714 | Musilova, Michaela,Tranter, Martyn,Wadham, Jemma,et al. Microbially driven export of labile organic carbon from the Greenland ice sheet[J]. NATURE GEOSCIENCE,2017,10(5). |
APA | Musilova, Michaela,Tranter, Martyn,Wadham, Jemma,Telling, Jon,Tedstone, Andrew,&Anesio, Alexandre M..(2017).Microbially driven export of labile organic carbon from the Greenland ice sheet.NATURE GEOSCIENCE,10(5). |
MLA | Musilova, Michaela,et al."Microbially driven export of labile organic carbon from the Greenland ice sheet".NATURE GEOSCIENCE 10.5(2017). |
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