Soil radiocarbon from moist acidic tussock and erect shrub tundra at Toolik Field Station

Soil radiocarbon data from one moist acidic tussock tundra and one erect shrub tundra (<em>Betula glandulosa</em>) site in the northern foothills of the Brooks Range near Toolik Field Station, AK, USA. Data covers the active layer. The tussock site is located on Itkillik I glacial deposits. The shrub site is a palsa within a riparian area, and likely underwent a relatively recent shift in vegetation cover from wet sedge to shrub. (The soil profile is made up of two different soil types within the active layer).