Brooks Range Alaska Treeline Root Nutrients and Stable Isotopes (2022)

Measurements of treeline white spruce fine root (<2 millimeters (mm)) carbon, nitrogen concentrations, along with stable isotopes of carbon and nitrogen. Fine roots (<2 mm) were collected from soil cores taken at the dripline below focal trees. The purpose of this dataset was to examine spatial variation in white spruce root nutrition across the Brooks Range and in relation to local microclimates. The dataset contains data for treeline trees that were treated with NPK (nitrogen, phosphorus, potassium) fertilizer at a sub-set of the research sites.