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| DOI | 10.1038/s41467-021-24040-9 |
| Storage and export of microbial biomass across the western Greenland Ice Sheet | |
| Irvine-Fynn T.D.L.; Edwards A.; Stevens I.T.; Mitchell A.C.; Bunting P.; Box J.E.; Cameron K.A.; Cook J.M.; Naegeli K.; Rassner S.M.E.; Ryan J.C.; Stibal M.; Williamson C.J.; Hubbard A. | |
| 发表日期 | 2021 |
| ISSN | 2041-1723 |
| 卷号 | 12期号:1 |
| 英文摘要 | The Greenland Ice Sheet harbours a wealth of microbial life, yet the total biomass stored or exported from its surface to downstream environments is unconstrained. Here, we quantify microbial abundance and cellular biomass flux within the near-surface weathering crust photic zone of the western sector of the ice sheet. Using groundwater techniques, we demonstrate that interstitial water flow is slow (~10−2 m d−1), while flow cytometry enumeration reveals this pathway delivers 5 × 108 cells m−2 d−1 to supraglacial streams, equivalent to a carbon flux up to 250 g km−2 d−1. We infer that cellular carbon accumulation in the weathering crust exceeds fluvial export, promoting biomass sequestration, enhanced carbon cycling, and biological albedo reduction. We estimate that up to 37 kg km−2 of cellular carbon is flushed from the weathering crust environment of the western Greenland Ice Sheet each summer, providing an appreciable flux to support heterotrophs and methanogenesis at the bed. © 2021, The Author(s). |
| 语种 | 英语 |
| scopus关键词 | carbon; ground water; carbon; albedo; carbon flux; flow cytometry; methanogenesis; photic zone; porewater; seasonal variation; water flow; albedo; Article; carbon cycle; carbon cycling; carbon dynamics; catchment area (hydrology); cell size; cell transport; flow cytometry; geographic elevation; Greenland; heterotroph; hydraulic conductivity; hydrology; ice sheet; meteorology; methanogenesis; microbial biomass; microbial community; nonhuman; photogrammetry; quantitative analysis; snowmelt runoff; storage; time series analysis; unmanned aerial vehicle; water flow; weathering; bacterial count; biomass; chemistry; ice cover; microbiology; weather; Arctic; Greenland; Greenland Ice Sheet; Biomass; Carbon; Carbon Cycle; Colony Count, Microbial; Greenland; Hydrology; Ice Cover; Weather |
| 来源期刊 | Nature Communications
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/251402 |
| 作者单位 | Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, United Kingdom; Institute of Biological Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom; School of Geography, Politics and Sociology, Newcastle University, Newcastle-upon-Tyne, United Kingdom; Department of Environmental Science, Aarhus University, Frederiksborgvej, Roskilde, Denmark; Department of Glaciology and Climate, Geological Survey of Denmark and Greenland, Copenhagen, Denmark; School of Geographical and Earth Sciences, University of Glasgow, Glasgow, United Kingdom; Department of Geography, University of Sheffield, Sheffield, United Kingdom; Institute of Geography and Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland; Institute at Brown for Environment and Society, Brown University, Providence, RI, United States; Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic; Bristol Glaciology Centre, School of Geographical... |
| 推荐引用方式 GB/T 7714 | Irvine-Fynn T.D.L.,Edwards A.,Stevens I.T.,et al. Storage and export of microbial biomass across the western Greenland Ice Sheet[J],2021,12(1). |
| APA | Irvine-Fynn T.D.L..,Edwards A..,Stevens I.T..,Mitchell A.C..,Bunting P..,...&Hubbard A..(2021).Storage and export of microbial biomass across the western Greenland Ice Sheet.Nature Communications,12(1). |
| MLA | Irvine-Fynn T.D.L.,et al."Storage and export of microbial biomass across the western Greenland Ice Sheet".Nature Communications 12.1(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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