Vegetation type influences particulate organic matter storage along a low Arctic vegetation gradient.

ABSTRACT: Permafrost soils constitute a large part of the terrestrial carbon pool that is vulnerable to future climate warming. Continued warming of the low Arctic is also leading to the encroachment of large shrubs and trees into tundra ecosystems with effects on microbial community composition, organic matter cycling and physical soil parameters. To date it is still largely unknown how such vegetation shifts affect soil organic matter cycling in permafrost soils on short and long timescales. Here, we investigated differences in soil organic matter properties under graminoid tussock (Eriophorum vaginatum), birch shrub (Betula glandulosa), spruce tree (Picea mariana) and alder shrub (Alnus viridis) vegetation by density fractionation and subsequent measurements of organic

SUBMITTER: Sauerland L 

PROVIDER: S-EPMC12705800 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature