Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13801 |
Marine-terminating glaciers sustain high productivity in Greenland fjords | |
Meire, Lorenz1,2,3,4; Mortensen, John1; Meire, Patrick5; Juul-Pedersen, Thomas1; Sejr, Mikael K.4; Rysgaard, Soren1,4,6,7; Nygaard, Rasmus1; Huybrechts, Philippe8,9; Meysman, Filip J. R.2,3,10 | |
2017-12-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Greenland; Netherlands; Denmark; Belgium; Canada |
英文摘要 | Accelerated mass loss from the Greenland ice sheet leads to glacier retreat and an increasing input of glacial meltwater to the fjords and coastal waters around Greenland. These high latitude ecosystems are highly productive and sustain important fisheries, yet it remains uncertain how they will respond to future changes in the Arctic cryosphere. Here we show that marine-terminating glaciers play a crucial role in sustaining high productivity of the fjord ecosystems. Hydrographic and biogeochemical data from two fjord systems adjacent to the Greenland ice sheet, suggest that marine ecosystem productivity is very differently regulated in fjords influenced by either land-terminating or marine-terminating glaciers. Rising subsurface meltwater plumes originating from marine-terminating glaciers entrain large volumes of ambient deep water to the surface. The resulting upwelling of nutrient-rich deep water sustains a high phytoplankton productivity throughout summer in the fjord with marine-terminating glaciers. In contrast, the fjord with only land-terminating glaciers lack this upwelling mechanism, and is characterized by lower productivity. Data on commercial halibut landings support that coastal regions influenced by large marine-terminating glaciers have substantially higher marine productivity. These results suggest that a switch from marine-terminating to land-terminating glaciers can substantially alter the productivity in the coastal zone around Greenland with potentially large ecological and socio-economic implications. |
英文关键词 | climate change fjords glaciers Greenland ice sheet oceanography phytoplankton primary production |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414969000033 |
WOS关键词 | PELAGIC PRIMARY PRODUCTION ; ICE-SHEET ; WEST GREENLAND ; COMMUNITY STRUCTURE ; SEASONAL VARIABILITY ; NORTHEAST GREENLAND ; TIDEWATER GLACIERS ; OUTLET GLACIERS ; YOUNG SOUND ; MELTWATER |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/17183 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Greenland Inst Nat Resources, Greenland Climate Res Ctr, Nuuk, Greenland; 2.NIOZ Royal Netherlands Inst Sea Res, Dept Estuarine & Delta Syst, Yerseke, Netherlands; 3.Univ Utrecht, Yerseke, Netherlands; 4.Aarhus Univ, Arctic Res Ctr, Aarhus, Denmark; 5.Univ Antwerp, Ecosyst Management Res Grp, Antwerp, Belgium; 6.Univ Manitoba, Dept Environm & Geog, Ctr Earth Observat Sci, Winnipeg, MB, Canada; 7.Univ Manitoba, Dept Geol Sci, Winnipeg, MB, Canada; 8.Vrije Univ Brussel, Earth Syst Sci, Brussels, Belgium; 9.Vrije Univ Brussel, Dept Geog, Brussels, Belgium; 10.Vrije Univ Brussel, Dept Analyt Environm & Geochem AMGC, Brussels, Belgium |
推荐引用方式 GB/T 7714 | Meire, Lorenz,Mortensen, John,Meire, Patrick,et al. Marine-terminating glaciers sustain high productivity in Greenland fjords[J]. GLOBAL CHANGE BIOLOGY,2017,23(12). |
APA | Meire, Lorenz.,Mortensen, John.,Meire, Patrick.,Juul-Pedersen, Thomas.,Sejr, Mikael K..,...&Meysman, Filip J. R..(2017).Marine-terminating glaciers sustain high productivity in Greenland fjords.GLOBAL CHANGE BIOLOGY,23(12). |
MLA | Meire, Lorenz,et al."Marine-terminating glaciers sustain high productivity in Greenland fjords".GLOBAL CHANGE BIOLOGY 23.12(2017). |
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