Black spruce soil delta15N values from 31 sites centered around Fairbanks, AK collected in 2007.

This dataset contains delta 15N values of bulk organic soils, dissolved organic nitrogen, ammonium, and nitrate. Soil delta 15N values were measured using the denitrifier method at the University of Florida.

本数据集包含整体有机土壤、溶解态有机氮、铵态氮及硝态氮的δ¹⁵N（delta 15N）值。其中土壤δ¹⁵N值于佛罗里达大学采用反硝化菌法完成测定。