Cross-scale regulation of seasonal microclimate by vegetation and snow in the Arctic tundra.

ABSTRACT: Climate warming is inducing widespread vegetation changes in Arctic tundra ecosystems, with the potential to alter carbon and nutrient dynamics between vegetation and soils. Yet, we lack a detailed understanding of how variation in vegetation and topography influences fine-scale temperatures ("microclimate") that mediate these dynamics, and at what resolution vegetation needs to be sampled to capture these effects. We monitored microclimate at 90 plots across a tundra landscape in western Greenland. Our stratified random study design covered gradients of topography and vegetation, while nested plots (0.8-100 m² ) enabled comparison across different sampling resolutions. We used Bayesian mixed-effect models to quantify the direct influence of plot-level topography, moisture and v

SUBMITTER: von Oppen J 

PROVIDER: S-EPMC9826065 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature