Elevation-based upscaling of organic carbon stocks in High-Arctic permafrost terrain: a storage and distribution assessment for Spitsbergen, Svalbard
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Elevation-based upscaling of organic carbon stocks in High-Arctic permafrost terrain : a storage and distribution assessment for Spitsbergen, Svalbard. / Weiss, Niels; Faucherre, Samuel; Lampiris, Nikos; Wojcik, Robin.
I: Polar Research, Bind 36, Nr. 1, 1400363, 2017.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Elevation-based upscaling of organic carbon stocks in High-Arctic permafrost terrain
T2 - a storage and distribution assessment for Spitsbergen, Svalbard
AU - Weiss, Niels
AU - Faucherre, Samuel
AU - Lampiris, Nikos
AU - Wojcik, Robin
N1 - CENPERMOA[2018]
PY - 2017
Y1 - 2017
N2 - Accurate quantity and distribution estimates of permafrost soil organic carbon (SOC) stocks are needed to project potential feedbacks to climate, following warming. Still, upscaling from local field observations to regional estimates to circumarctic assessments remains a challenge. Here we explore elevation-based upscaling techniques for High-Arctic permafrost SOC stocks. We combine two detailed, high-resolution SOC inventories on Spitsbergen (Svalbard) with regional validation data. We find a clear relationship between elevation and SOC content, and use this observed exponential correlation, as well as discrete elevation classes, as upscaling models for Spitsbergen. We estimate the total amount of permafrost SOC currently present in soils on Spitsbergen to be 105.36 Tg (0.11 Pg), with a mean SOC content of 2.84 ± 0.74 kg C m−2 (mean ± 95% confidence interval). Excluding glaciers and permanent snowfields, exposed land is currently estimated to contain 6.26 ± 1.47 kg C m−2.
AB - Accurate quantity and distribution estimates of permafrost soil organic carbon (SOC) stocks are needed to project potential feedbacks to climate, following warming. Still, upscaling from local field observations to regional estimates to circumarctic assessments remains a challenge. Here we explore elevation-based upscaling techniques for High-Arctic permafrost SOC stocks. We combine two detailed, high-resolution SOC inventories on Spitsbergen (Svalbard) with regional validation data. We find a clear relationship between elevation and SOC content, and use this observed exponential correlation, as well as discrete elevation classes, as upscaling models for Spitsbergen. We estimate the total amount of permafrost SOC currently present in soils on Spitsbergen to be 105.36 Tg (0.11 Pg), with a mean SOC content of 2.84 ± 0.74 kg C m−2 (mean ± 95% confidence interval). Excluding glaciers and permanent snowfields, exposed land is currently estimated to contain 6.26 ± 1.47 kg C m−2.
KW - climate warming
KW - greenhouse gas release
KW - SOC inventory
KW - Soil organic carbon
KW - upscaling model
U2 - 10.1080/17518369.2017.1400363
DO - 10.1080/17518369.2017.1400363
M3 - Journal article
AN - SCOPUS:85043985734
VL - 36
JO - Polar Research
JF - Polar Research
SN - 0800-0395
IS - 1
M1 - 1400363
ER -
ID: 196206960