Soil Carbon and Nitrogen Stocks Across Hillslopes Underlain by Continuous Permafrost in the Northern Arctic Foothills, Alaska, United States

Soil Carbon and Nitrogen Stocks Across Hillslopes Underlain by Continuous Permafrost in the Northern Arctic Foothills, Alaska, United States

ABSTRACT Constraining the variability of soil organic carbon (SOC) and total nitrogen (TN) stocks across hillslopes in Low Arctic permafrost‐affected landscapes remains a significant challenge for improving global estimates of permafrost SOC stocks. We investigated SOC and TN stocks across hillslope...

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Veröffentlicht in:Permafrost and periglacial processes 2024-10, Vol.35 (4), p.504-522
Hauptverfasser: Ainuddin, I. H., Jelinski, N. A., Matamala, R., Ping, C. L., Jastrow, J. D.
Format: Artikel
Sprache:eng
Schlagworte:
carbon
Foothills
Geomorphology
Glacial till
Ice cover
Nitrogen
Organic carbon
Organic soils
Permafrost
Sampling
Soil
stocks
Thickness
Variability
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Zusammenfassung:ABSTRACT Constraining the variability of soil organic carbon (SOC) and total nitrogen (TN) stocks across hillslopes in Low Arctic permafrost‐affected landscapes remains a significant challenge for improving global estimates of permafrost SOC stocks. We investigated SOC and TN stocks across hillslopes at two sites in the Arctic Foothills of Alaska, United States (Happy Valley and Sagwon Hills). Average SOC and TN stocks for the 0–1‐m depth interval were high (52.0 ± 15.1 kg C m−2 and 2.74 ± 0.82 kg N m−2) and linearly related (R2 = 0.74, p 
ISSN:1045-6740
1099-1530
DOI:10.1002/ppp.2244