Publication Date:
2014-07-15
Description:
High latitude terrestrial ecosystems are key components in the global carbon (C) cycle.
The Northern Circumpolar Soil Carbon Database (NCSCD) was developed to quantify
stocks of soil organic carbon (SOC) in the northern circumpolar permafrost region
(18.7×106 km2 5 ). The NCSCD is a digital Geographical Information systems (GIS)
database compiled from harmonized regional soil classification maps, in which data
on soil coverage has been linked to pedon data from the northern permafrost regions.
Previously, the NCSCD has been used to calculate SOC content (SOCC) and mass
(SOCM) to the reference depths 0–30 cm and 0–100 cm (based on 1778 pedons). It
10 has been shown that soils of the northern circumpolar permafrost region also contain
significant quantities of SOC in the 100–300 cm depth range, but there has been
no circumpolar compilation of pedon data to quantify this SOC pool and there are
no spatially distributed estimates of SOC storage below 100 cm depth in this region.
Here we describe the synthesis of an updated pedon dataset for SOCC in deep soils
15 of the northern circumpolar permafrost regions, with separate datasets for the 100–
200 cm (524 pedons) and 200–300 cm (356 pedons) depth ranges. These pedons have
been grouped into the American and Eurasian sectors and the mean SOCC for different
soil taxa (subdivided into Histels, Turbels, Orthels, Histosols, and permafrost-free
mineral soil taxa) has been added to the updated NCSCDv2. The updated version of
20 the database is freely available online in several different file formats and spatial resolutions
that enable spatially explicit usage in e.g. GIS and/or terrestrial ecosystem
models. The potential applications and limitations of the NCSCDv2 in spatial analyses
are briefly discussed. An open access data-portal for all the described GIS-datasets
is available online at: http://dev1.geo.su.se/bbcc/dev/v3/ncscd/download.php. The NC25
SCDv2 database has the doi:10.5879/ECDS/00000002.
Repository Name:
EPIC Alfred Wegener Institut
Type:
Article
,
notRev
Format:
application/pdf
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