globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2020.103145
论文题名:
Fjords as Aquatic Critical Zones (ACZs)
作者: Bianchi T.S.; Arndt S.; Austin W.E.N.; Benn D.I.; Bertrand S.; Cui X.; Faust J.C.; Koziorowska-Makuch K.; Moy C.M.; Savage C.; Smeaton C.; Smith R.W.; Syvitski J.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 203
语种: 英语
英文关键词: burial (geology) ; climate change ; climate effect ; fjord ; glacial deposit ; Holocene ; land use change ; organic matter ; paleoclimate
英文摘要: In recent decades, the land-ocean aquatic continuum, commonly defined as the interface, or transition zone, between terrestrial ecosystems and the open ocean, has undergone dramatic changes. On-going work has stressed the importance of treating Aquatic Critical Zones (ACZs) as a sensitive system needing intensive investigation. Here, we discuss fjords as an ACZ in the context of sedimentological, geochemical, and climatic impacts. These diverse physical features of fjords are key in controlling the sources, transport, and burial of organic matter in the modern era and over the Holocene. High sediment accumulation rates in fjord sediments allow for high-resolution records of past climate and environmental change where multiple proxies can be applied to fjord sediments that focus on either marine or terrestrial-derived components. Humans through land-use change and climatic stressors are having an impact on the larger carbon stores in fjords. Sediment delivery whether from accelerating erosion (e.g. mining, deforestation, road building, agriculture) or from sequestration of fluvial sediment behind dams has been seriously altered in the Anthropocene. Climate change affecting rainfall and river discharge into fjords will impact the thickness and extent of the low-salinity layer in the upper reaches of the fjord, slowing the rate of the overturning circulation and deep-water renewal – thereby impacting bottom water oxygen concentrations. © 2020 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166007
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作者单位: Department of Geological Sciences, University of Florida, Gainesville, FL 32611-2120, United States; BGeoSys, Department of Geosciences, Environment and Society, Université Libre de Bruxelles, Brussels, Belgium; School of Geography and Sustainable Development, University of St. Andrews, St. Andrews, KY16 9AL, United Kingdom; Renard Centre of Marine Geology, Ghent University, Krijgslaan 281 S8, Gent, 9000, Belgium; Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; School of Earth and Environment, The University of Leeds, Leeds, LS2 9JT, United Kingdom; Institute of Oceanology Polish Academy of Sciences, ul. Powstańców Warszawy 55, Sopot, Poland; Department of Geology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand; Department of Marine Science, University of Otago, Dunedin, New Zealand; Department of Biological Sciences, Marine Research Institute, University of Cape Town, South Africa; Global Aquatic Research LLC, Sodus, New York, 14551, United States; CSDMS Integration Facility, INSTAAR, University of Colorado, Boulder, CO 80309-0545, United States; Scottish Association for Marine Science, Scottish Marine Institute, Oban, PA37 1QA, United Kingdom

Recommended Citation:
Bianchi T.S.,Arndt S.,Austin W.E.N.,et al. Fjords as Aquatic Critical Zones (ACZs)[J]. Earth Science Reviews,2020-01-01,203
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