TY  - JOUR
A1  - Wojcik, Robin
A1  - Donhauser, Johanna
A1  - Frey, Beat W.
A1  - Holm, Stine
A1  - Holland, Alexandra
A1  - Anesio, Alexandre M.
A1  - Pearce, David A.
A1  - Malard, Lucie
A1  - Wagner, Dirk
A1  - Benning, Liane G.
T1  - Linkages between geochemistry and microbiology in a proglacial terrain in the High Arctic
JF  - Annals of glaciology
N2  - Proglacial environments are ideal for studying the development of soils through the changes of rocks exposed by glacier retreat to weathering and microbial processes. Carbon (C) and nitrogen (N) contents as well as soil pH and soil elemental compositions are thought to be dominant factors structuring the bacterial, archaeal and fungal communities in the early stages of soil ecosystem formation. However, the functional linkages between C and N contents, soil composition and microbial community structures remain poorly understood. Here, we describe a multivariate analysis of geochemical properties and associated microbial community structures between a moraine and a glaciofluvial outwash in the proglacial area of a High Arctic glacier (Longyearbreen, Svalbard). Our results reveal distinct differences in developmental stages and heterogeneity between the moraine and the glaciofluvial outwash. We observed significant relationships between C and N contents, delta C-13(org) and delta N-15 isotopic ratios, weathering and microbial abundance and community structures. We suggest that the observed differences in microbial and geochemical parameters between the moraine and the glaciofluvial outwash are primarily a result of geomorphological variations of the proglacial terrain.
KW  - biogeochemistry
KW  - glacial geomorphology
KW  - glacier chemistry
KW  - microbiology
KW  - processes and landforms of glacial erosion
Y1  - 2018
U6  - https://doi.org/10.1017/aog.2019.1
SN  - 0260-3055
SN  - 1727-5644
VL  - 59
IS  - 77
SP  - 95
EP  - 110
PB  - Cambridge Univ. Press
CY  - Cambridge
ER  -