Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075543 |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From C-14 Ramped Pyrolysis and Lignin Biomarkers | |
Zhang, Xiaowen1,2; Bianchi, Thomas S.1; Cui, Xingqian1,2; Rosenheim, Brad E.3; Ping, Chien-Lu4; Hanna, Andrea J. M.5; Kanevskiy, Mikhail6; Schreiner, Kathryn M.7; Allison, Mead A.8 | |
2017-11-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The deposition of terrestrial-derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysis-oxidation radiocarbon analysis (RPO C-14) along with lignin biomarkers, to track the linkages between soils and river and delta sediments. Surface and deep soils showed distinct RPO thermographs which may be related to degradation and organo-mineral interaction. Soil material in the bed load of the river channel was mostly derived from deep old permafrost. Both surface and deep soils were transported and deposited to the coast. Hydrodynamic sorting and barrier island protection played important roles in terrestrial-derived permafrost POC deposition near the coast. On a large scale, ice processes (e.g., ice gauging and strudel scour) and ocean currents controlled the transport and distribution of permafrost POC on the Beaufort Shelf. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102300031 |
WOS关键词 | BEAUFORT SEA ; SURFACE SEDIMENTS ; CLIMATE-CHANGE ; OLD CARBON ; MATTER ; ICE ; PRESERVATION ; SHELF ; EROSION ; ALASKA |
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/28313 |
专题 | 气候变化 |
作者单位 | 1.Univ Florida, Dept Geol Sci, Gainesville, FL 32611 USA; 2.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA; 3.Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA; 4.Univ Alaska Fairbanks, Sch Nat Resources & Extens, Fairbanks, AK USA; 5.Univ Texas Austin, Inst Geophys, Jackson Sch Geosci, Austin, TX USA; 6.Univ Alaska Fairbanks, Inst Northern Engn, Fairbanks, AK USA; 7.Univ Minnesota, Large Lakes Observ, Duluth, MN 55812 USA; 8.Water Inst Gulf, Baton Rouge, LA USA |
推荐引用方式 GB/T 7714 | Zhang, Xiaowen,Bianchi, Thomas S.,Cui, Xingqian,et al. Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From C-14 Ramped Pyrolysis and Lignin Biomarkers[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(22). |
APA | Zhang, Xiaowen.,Bianchi, Thomas S..,Cui, Xingqian.,Rosenheim, Brad E..,Ping, Chien-Lu.,...&Allison, Mead A..(2017).Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From C-14 Ramped Pyrolysis and Lignin Biomarkers.GEOPHYSICAL RESEARCH LETTERS,44(22). |
MLA | Zhang, Xiaowen,et al."Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From C-14 Ramped Pyrolysis and Lignin Biomarkers".GEOPHYSICAL RESEARCH LETTERS 44.22(2017). |
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