globalchange  > 气候变化与战略
DOI: 10.5194/tc-14-1347-2020
论文题名:
Review article: How does glacier discharge affect marine biogeochemistry and primary production in the Arctic?
作者: Hopwood M.J.; Carroll D.; Dunse T.; Hodson A.; Holding J.M.; Iriarte J.L.; Ribeiro S.; Achterberg E.P.; Cantoni C.; Carlson D.F.; Chierici M.; Clarke J.S.; Cozzi S.; Fransson A.; Juul-Pedersen T.; Winding M.H.S.; Meire L.
刊名: Cryosphere
ISSN: 19940416
出版年: 2020
卷: 14, 期:4
起始页码: 1347
结束页码: 1383
语种: 英语
英文关键词: biogeochemistry ; discharge ; estuarine front ; fjord ; growth ; marine ecosystem ; marine environment ; oceanic circulation ; phytoplankton ; primary production ; Arctic Ocean
英文摘要: Freshwater discharge from glaciers is increasing across the Arctic in response to anthropogenic climate change, which raises questions about the potential downstream effects in the marine environment. Whilst a combination of long-term monitoring programmes and intensive Arctic field campaigns have improved our knowledge of glacier-ocean interactions in recent years, especially with respect to fjord/ocean circulation, there are extensive knowledge gaps concerning how glaciers affect marine biogeochemistry and productivity. Following two cross-cutting disciplinary International Arctic Science Committee (IASC) workshops addressing the importance of glaciers for the marine ecosystem, here we review the state of the art concerning how freshwater discharge affects the marine environment with a specific focus on marine biogeochemistry and biological productivity. Using a series of Arctic case studies (Nuup Kangerlua/Godthäbsfjord, Kongsfjorden, Kangerluarsuup Sermia/Bowdoin Fjord, Young Sound and Sermilik Fjord), the interconnected effects of freshwater discharge on fjord-shelf exchange, nutrient availability, the carbonate system, the carbon cycle and the microbial food web are investigated. Key findings are that whether the effect of glacier discharge on marine primary production is positive or negative is highly dependent on a combination of factors. These include glacier type (marine- or land-terminating), fjord-glacier geometry and the limiting resource(s) for phytoplankton growth in a specific spatio-temporal region (light, macronutrients or micronutrients). Arctic glacier fjords therefore often exhibit distinct discharge-productivity relationships, and multiple case-studies must be considered in order to understand the net effects of glacier discharge on Arctic marine ecosystems. © 2020 Copernicus GmbH. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164483
Appears in Collections:气候变化与战略

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作者单位: GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Moss Landing Marine Laboratories, San José State University, Moss Landing, CA, United States; Western Norway University of Applied Sciences, Sogndal, Norway; University of Oslo, Oslo, Norway; University Centre in Svalbard, Longyearbyen, Norway; Department of Bioscience, Aarhus University, Silkeborg, Denmark; Instituto de Acuicultura and Centro Dinamica de Ecosistemas Marinos de Altas Latitudes - IDEAL, Universidad Austral de Chile, Puerto Montt, Chile; Geological Survey of Denmark and Greenland, Copenhagen, Denmark; CNR-ISMAR Istituto di Scienze Marine, Trieste, Italy; Institute of Marine Research, Fram Centre, Tromsø, Norway; Norwegian Polar Institute, Fram Centre, Tromsø, Norway; Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland; Royal Netherlands Institute for Sea Research, Utrecht University, Yerseke, Netherlands; Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research, Geesthacht, Germany

Recommended Citation:
Hopwood M.J.,Carroll D.,Dunse T.,et al. Review article: How does glacier discharge affect marine biogeochemistry and primary production in the Arctic?[J]. Cryosphere,2020-01-01,14(4)
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