Citation:

PANGAEA.927861

Name: Soil organic carbon, active layer depth and visible ground ice content for Herschel Island (Qikiqtaruk)
Published: 2021-02-12
License: https://creativecommons.org/licenses/by/4.0/
Keywords: active layer depth; Arctic; ground ice; Permafrost; soil organic carbon

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Abstract:

This dataset contains soil pedon data collected in 2015 on Herschel Island (Qikiqtaruk; 69°34′N, 138°55′W), Beaufort Sea, Canada. Large amounts of soil organic carbon (SOC) are stored in high-latitude ecosystems. Knowledge on storage and variability provides essential base information to asses the vulnerability of this SOC. In total 38 soil pedons were sampled along transects in three typical tundra terrain types common across the Arctic region. These terrain types (unit) are hummocky tussock upland tundra (HT-Tundra), non-sorted circles on upland tundra (NSC-Tundra) and ice-wedge polygon terrain (IWP-Tundra). A main transect was set up with increasing sampling distance from the center and complemented with a shorter crossing transect. This aimed to maximize the distances between individual soil pedons in order to test geostatistical properties of SOC variability. At each pedon location a 1 m wide soil pit was sampled and described using a soil horizon oriented approach. The soil pit was then divided in 10 cm intervals generating 11 sub-pedons. SOC storage was calculated for specific depth intervals SOC 0–30 cm, SOC 0–100 cm, SOCAL (SOC in active layer), SOCPF (SOC in permafrost), as well as the visible ice content for the permafrost section (mean_vis_ice). Additional data includes the depth of the permafrost table (depthPF) and the location of the sub-pedon within the periglacial landforms they occupy (landformLoc). For the active layer, the data was calculated based on perspective corrected images of the soil pit, while for the permafrost section homogeneous layering was applied.

Keyword(s):

active layer depth; Arctic; ground ice; Permafrost; soil organic carbon

Supplement to:

Siewert, Matthias Benjamin; Lantuit, Hugues; Richter, Andreas; Hugelius, Gustaf (2021): Permafrost Causes Unique Fine‐Scale Spatial Variability Across Tundra Soils. Global Biogeochemical Cycles, 35(3), e2020GB006659, https://doi.org/10.1029/2020GB006659

Coverage:

Median Latitude: 69.582335 * Median Longitude: -138.930965 * South-bound Latitude: 69.578454 * West-bound Longitude: -138.958847 * North-bound Latitude: 69.585151 * East-bound Longitude: -138.915702

Event(s):

Herschel_Island (HER) * Latitude: 69.579530 * Longitude: -138.957400 * Method/Device: Multiple investigations (MULT)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Position	Position		Siewert, Matthias Benjamin	Relative position of the subpedon within periglacial landform
2	Soil pedon	Pedon		Siewert, Matthias Benjamin
3	Soil subpedon	Subpedon		Siewert, Matthias Benjamin	Virtual subpedon located within the main pedon (unique identifier)
4	Transect	Transect		Siewert, Matthias Benjamin	Transect in which the soil pedon is located
5	Terrain	Terrain		Siewert, Matthias Benjamin	Tundra terrain type/unit in which the pedon is located
6	Position	Position		Siewert, Matthias Benjamin	Relative position of the subpedon within periglacial landform
7	Soil organic carbon storage	SOC storage	kg/m²	Siewert, Matthias Benjamin	Soil organic carbon storage for the 0 - 30 cm depth interval
8	Soil organic carbon storage	SOC storage	kg/m²	Siewert, Matthias Benjamin	Soil organic carbon storage for the 0 - 100 cm depth interval
9	Soil organic carbon storage	SOC storage	kg/m²	Siewert, Matthias Benjamin	Soil organic carbon storage for the active layer depth interval
10	Soil organic carbon storage	SOC storage	kg/m²	Siewert, Matthias Benjamin	Soil organic carbon storage for the permafrost depth interval
11	Ground-ice	Ground-ice	%	Siewert, Matthias Benjamin	Mean visible ground ice content in the permafrost depth interval
12	Active layer depth	ALD	cm	Siewert, Matthias Benjamin	Depth of the active layer / permafrost layer
13	UTM Easting, Universal Transverse Mercator	UTM east	m	Siewert, Matthias Benjamin	NAD83/UTM zone 7N; EPSG coder: 26907
14	UTM Northing, Universal Transverse Mercator	UTM north	m	Siewert, Matthias Benjamin	NAD83/UTM zone 7N; EPSG coder: 26907
15	LATITUDE	Latitude		Siewert, Matthias Benjamin	Geocode
16	LONGITUDE	Longitude		Siewert, Matthias Benjamin	Geocode

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

5434 data points

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