The biochemical composition of dissolved organic matter (DOM) strongly influences its
biogeochemical role in freshwater ecosystems, yet DOM composition measurements are not …

Over the next century, near‐surface permafrost across the circumpolar Arctic is expected to
degrade significantly, particularly for land areas south of 70° N. This is likely to cause …

The decomposition and transformation of above‐and below‐ground plant detritus (litter) is
the main process by which soil organic matter (SOM) is formed. Yet, research on litter decay …

The Arctic is a water-rich region, with freshwater systems covering about 16% of the northern
permafrost landscape. Permafrost thaw creates new freshwater ecosystems, while at the …

Surface water samples were collected from 43 streams distributed throughout watersheds of
mixed land use in southern Ontario, Canada. Absorbance and fluorescence spectroscopy …

Chromophoric dissolved organic matter (CDOM) was examined using fluorescence and
absorbance spectra from sulfidic cave and thermal and non-thermal surface-discharging …

Permafrost degradation may lead to mobilization of carbon and nutrients and enhance
microbial processing rates of previously frozen organic matter. Although the pool size and …

As high latitudes warm, a portion of the large organic carbon pool stored in permafrost will
become available for transport to aquatic ecosystems as dissolved organic carbon (DOC). If …

Advances in spectroscopic and other chemical methods have greatly enhanced our ability to
characterize soil organic matter chemistry. As a result, the molecular characteristics of soil C …

Northern permafrost soils store a vast reservoir of carbon, nearly twice that of the present
atmosphere. Current and projected climate warming threatens widespread thaw of these …