Articles | Volume 12, issue 12
Biogeosciences, 12, 3725–3740, 2015
https://doi.org/10.5194/bg-12-3725-2015

Special issue: Freshwater ecosystems in changing permafrost landscapes

Biogeosciences, 12, 3725–3740, 2015
https://doi.org/10.5194/bg-12-3725-2015

Research article 17 Jun 2015

Research article | 17 Jun 2015

Patterns and persistence of hydrologic carbon and nutrient export from collapsing upland permafrost

B. W. Abbott et al.

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Short summary
As high latitudes warm, carbon and nitrogen stored in permafrost soil will be vulnerable to erosion and transport to Arctic streams and rivers. We sampled outflow from 83 permafrost collapse features in Alaska. Permafrost collapse caused substantial increases in dissolved organic carbon and inorganic nitrogen but decreased methane concentration by 90%. Upland thermokarst may be a dominant linkage transferring carbon and nutrients from terrestrial to aquatic ecosystems as the Arctic warms.
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