the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...

sample ID date lake latitude longitude type depth
G 03-115 13. sep. Loon
G 03-116 13. sep. Loon
G 03-117 13. sep. Loon
G 03-118 13. sep. Loon
G 03-119 13. sep. Loon
N
W
72°52'49.8'' 022°08´54.9''
N
W
72°52'49.8'' 022°08´54.9''
N
W
72°52'48.2'' 022°08'58.0''
N
W
72°52'48.2'' 022°08'58.0''
N
W
72°52'48.2'' 022°08'58.0''
sample
amount
planned
analyses*
soil, site 5 6-9 cm 0,5 kg PC, B
soil, site 5 9-22 cm 0,5 kg PC, B
soil, site 4 0-2 cm 0,5 kg PC, B
soil, site 4 2-9 cm 0,5 kg PC, B
soil, site 4 9-16 cm 0,5 kg PC, B
* PC = physical and chemical soil analyses; B = micro- an molecularbiological analyses; M = CH4-content
Tab. 6.4-1: List of soil samples taken during the field work on Store Koldewey and Geographical
Society Ø.
After the period of emission measurements soils were described and sampled.
Beside the German classification (KA4), the soils were described using the 8 th edition
of the US Soil Taxonomy (ST). From each horizon samples were taken for analysing
several soil parameters, which influence the methane emission (C/N-ratio, Corgcontent,
DOC-content). These samples were stored and transported at +4°C. The
samples that were taken for the micro- and molecularbiological analyses were stored
and transported at –18°C. Methane emission measurements and soil sampling were
done at five different sites (Tab. 3). Four of them were Gleys, situated near the
shores of the investigated lakes. A detailed description is given for three of the
measuring sites in Tab. 4-6.
depth horizon
description sample-ID
(cm) (KA4 / ST)*
0-1 Ah / Ajj very strong rooted, very dark grey (10YR 3/1) loamy
sand, high content of organic material, pebbles on the
surface
G03-45
1-6 Go1 / B 1 sparse rooted, dark greyish brown (10YR 4/2) loamy
sand, very low content of organic material, 1-3 cm layer
of pebbles
G03-46
6-12 Go2 / B 2 very sparse rooted, brown (10YR 4/3) loamy sand, no
organic material
G03-47
12- Gr / Bg non rooted, greyish brown (2,5 Y 5/2) sandy silty loam, G03-48
40+
no organic material
Tab. 6.4-2: Gley (site 1)
location: Store Koldewey; N 76°07’33.5’’ W 018°36’17.2’’
landform / elevation: end of a flat slope at the shore of Lake Melles, 166 m a.s.l.
vegetation: mosses, lichens; vegetation cover: 20 – 30 %
water table: 13 cm
parent material: moraine material
KA4: Gley Soil Taxonomy: Cryaquept
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