Ongoing

The invisible carbon: an early indication of ecosystem change!

The invisible carbon: an early indication of ecosystem change!

Streams are sensitive sentinels for environmental change by their integration of processes in terrestrial and aquatic systems. Upland headwater streams in the north Swedish tundra show seasonally exceptional high concentrations of uncolored dissolved organic carbon (DOC) and high carbon dioxide concentrations.

Nutrient availability along two arctic successional gradients

Nutrient availability along two arctic successional gradients

Understanding how plant succession is influenced by climate warming is a key issue for understanding how arctic landscapes will change in the future. At high latitudes, low temperature drives disturbance and the consequent primary succession (e.g., cryoturbation, glacier advance and retreat).