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Two decades of altered snow cover does not affect soil microbial ability to catabolize carbon compounds in an oceanic alpine heath

Author:
Wubs, E.R. Jasper, Woodin, Sarah J., Stutter, Marc I., Wipf, Sonja, Sommerkorn, Martin, van der Wal, René
Source:
Soil biology & biochemistry 2018 v.124 pp. 101-104
ISSN:
0038-0717
Subject:
botanical composition, carbon, field experimentation, metabolism, microbial communities, snow, snowpack, soil water content, summer, vegetation
Abstract:
Snow strongly affects ecosystem functioning in alpine environments with potential carry-over effects outside of snow periods. However, it is unclear whether changes in snow cover affect microbial community functioning in summer. In a field experiment, we tested whether manipulation of snow cover affected the functional capabilities of the microbial community either directly, or indirectly through concomitant changes in the vegetation. While 23 years of differential snow depth and persistence fundamentally changed the vegetation composition, the microbial community's ability to catabolize a range of carbon compounds was not altered. Instead, soil moisture content was the key driver of carbon catabolism by the microbial community.
Agid:
5971741