| Summary: | The file contains data from pyrolysis gas chromatography mass spectrometry analysis of carbon compounds in mineral and organic soils taken from a long term fertilization experiment at Toolik Research Station, Alaska. Established in 1981, permafrost plots were fertilized yearly at a rate of 10 grams nitrogen per square meter per year as ammonium nitrate and 5 grams phosphorus per square meter per year as phosphorus pentoxide. Samples were taken from the active layer and include mineral, mixed, and organic soils from the 2015 pluck (harvest). There was a significant (p=0.0387) treatment effect for protein, suggesting a potential shift in microbial populations.
|
|---|