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Cumulative geoecological effects of 62 years of infrastructure and climate change in ice‐rich permafrost landscapes, Prudhoe Bay Oilfield, Alaska

Raynolds, Martha K ; Walker, Donald A ; Ambrosius, Kenneth J ; Brown, Jerry ; Everett, Kaye R ; Kanevskiy, Mikhail ; Kofinas, Gary P ; Romanovsky, Vladimir E ; Shur, Yuri ; Webber, Patrick J

Global change biology, 2014-04, Vol.20 (4), p.1211-1224 [Periódico revisado por pares]

Oxford: Blackwell Science

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  • Título:
    Cumulative geoecological effects of 62 years of infrastructure and climate change in ice‐rich permafrost landscapes, Prudhoe Bay Oilfield, Alaska
  • Autor: Raynolds, Martha K ; Walker, Donald A ; Ambrosius, Kenneth J ; Brown, Jerry ; Everett, Kaye R ; Kanevskiy, Mikhail ; Kofinas, Gary P ; Romanovsky, Vladimir E ; Shur, Yuri ; Webber, Patrick J
  • Assuntos: air temperature ; Alaska ; Arctic ; Arctic Regions ; Climate Change ; cumulative impacts ; Ecology ; Ecosystem ; Environmental Monitoring - methods ; floodplains ; geoecological mapping ; Geology ; gravel ; Ice ; ice-rich permafrost ; ice-wedge polygons ; icebergs ; industrialization ; industry ; Infrastructure ; lakes ; Landscape ecology ; landscapes ; melting ; microrelief ; Oil and Gas Fields ; Oil fields ; oils ; permafrost ; photo-interpretation ; ponds ; rivers ; roads ; Soil ; summer ; Temperature ; thermokarst ; tundra ; wildlife habitats
  • É parte de: Global change biology, 2014-04, Vol.20 (4), p.1211-1224
  • Notas: http://dx.doi.org/10.1111/gcb.12500
    ArcSEES - No. OIA-1208927
    ArticleID:GCB12500
    Maps and Locals - No. 1026843
    istex:F95D1AB63F06C51F3D00F0135024788D501BE6F5
    NASA Land-Cover Land-Use Change - No. NNX09AK56G
    Appendix S1. Ice-rich permafrost at Prudhoe Bay. By Y. Shur, M. Kanevskiy, V.E. Romanovsky, K.R. Everett, J. Brown, and D.A. Walker.Appendix S2. Calculation of impacts of oilfield development, North Slope Alaska, by K.J. Ambrosius.Appendix S3. Integrated Geoecological and Historical Change Mapping: history, methods, maps, and summary information, by D.A. Walker, M.K. Raynolds, P.J. Webber and J. Brown.
    ark:/67375/WNG-3FNTFCT9-5
    Arctic Long Term Ecological Research
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Many areas of the Arctic are simultaneously affected by rapid climate change and rapid industrial development. These areas are likely to increase in number and size as sea ice melts and abundant Arctic natural resources become more accessible. Documenting the changes that have already occurred is essential to inform management approaches to minimize the impacts of future activities. Here, we determine the cumulative geoecological effects of 62 years (1949–2011) of infrastructure‐ and climate‐related changes in the Prudhoe Bay Oilfield, the oldest and most extensive industrial complex in the Arctic, and an area with extensive ice‐rich permafrost that is extraordinarily sensitive to climate change. We demonstrate that thermokarst has recently affected broad areas of the entire region, and that a sudden increase in the area affected began shortly after 1990 corresponding to a rapid rise in regional summer air temperatures and related permafrost temperatures. We also present a conceptual model that describes how infrastructure‐related factors, including road dust and roadside flooding are contributing to more extensive thermokarst in areas adjacent to roads and gravel pads. We mapped the historical infrastructure changes for the Alaska North Slope oilfields for 10 dates from the initial oil discovery in 1968–2011. By 2010, over 34% of the intensively mapped area was affected by oil development. In addition, between 1990 and 2001, coincident with strong atmospheric warming during the 1990s, 19% of the remaining natural landscapes (excluding areas covered by infrastructure, lakes and river floodplains) exhibited expansion of thermokarst features resulting in more abundant small ponds, greater microrelief, more active lakeshore erosion and increased landscape and habitat heterogeneity. This transition to a new geoecological regime will have impacts to wildlife habitat, local residents and industry.
  • Editor: Oxford: Blackwell Science
  • Idioma: Inglês;Russo
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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