Articles | Volume 10, issue 4
Earth Syst. Sci. Data, 10, 1943–1957, 2018
https://doi.org/10.5194/essd-10-1943-2018
Earth Syst. Sci. Data, 10, 1943–1957, 2018
https://doi.org/10.5194/essd-10-1943-2018

  22 Oct 2018

22 Oct 2018

Radiocarbon measurements of ecosystem respiration and soil pore-space CO2 in Utqiaġvik (Barrow), Alaska

Lydia J. S. Vaughn and Margaret S. Torn

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This paper discusses radiocarbon in CO2 and soil organic carbon from Arctic Alaska. From soil chamber measurements, we observed strong seasonal and spatial patterns in 14C of ecosystem respiration, which declined throughout the summer and differed among permafrost features. Radiocarbon in pore-space CO2 indicated decomposition of carbon as old as 3000 years near the permafrost table. Together, these data reveal different rates of old carbon decomposition from distinct permafrost features.