Seward Peninsula, Alaska soil microcosm data characterizes water-extractable organic matter molecular composition. The dataset results from electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICR-MS) analysis of soils incubated for 55 days with and without ammonium chloride addition. Data was generated by the NGEE Arctic project, supported by the Department of Energy's Office of Biological and Environmental Research, with soil collected in April 2017.
Use Cases
- Analyze shifts in biochemical compound classes (based on O:C and H:C ratios) between control and nitrogen-addition treatments.
- Compare the percentage of molecular formulas containing only C, H, and O versus those with N, S, and other elements across different soil types.
- Correlate soil sample characteristics with high-resolution mass spectrometry results to understand treatment impacts on organic matter composition.
Strengths
- Data derived from controlled 55-day microcosm incubations under specific atmospheric conditions.
- Molecular formulas are grouped into nine distinct biochemical classes for analysis.
- Part of a 10-year (2012-2022) research effort (NGEE Arctic) aimed at model improvement.
Limitations
- Sample size is limited to soils from one site (Teller Road) collected at a single time (April 2017).
- Unknown row count and dataset size prevent assessment of statistical power.
- Experimental conditions (8°C, N2 atmosphere) may not fully represent in-situ field dynamics.
Provenance
- Source
- NGEE Arctic project, Department of Energy's Office of Biological and Environmental Research.
- Collection Method
- Soil microcosm incubation, water extraction, solid-phase extraction, and ESI-FTICR-MS analysis.
- Time Range
- Soil collected in April 2017; incubation duration of 55 days.
- Freshness
- null
- Geography
- Teller Road Site, Seward Peninsula, Alaska, USA.