Nitrogen in rocks: an overlooked nutrient source in Arctic aquatic ecosystems

Projekter: ProjektForskning

Se relationer på Aarhus Universitet


Nitrogen is a key nutrient and its availability defines structure and function of ecosystems. In the Arctic, extremely low nitrogen concentration is one of the reasons of the limited productivity across ecosystems. This Villum experiment takes off from the unorthodox idea that rocks are potential ecologically meaningful sources of nitrogen in Arctic freshwaters. The dramatic changes in the Arctic are intensifying rock weathering and hydrological fluxes, but the consequences on nitrogen availability to aquatic ecosystems have yet to be explored. We will combine both field and laboratory work, using isotopic and molecular tools, to provide new insight into the amount of rock nitrogen available for aquatic microorganisms. This project will provide essential information on the terrestrial-aquatic biogeochemical linkages in Arctic regions, with major impacts on our understanding of factors influencing global productivity.
Effektiv start/slut dato17/09/201931/05/2022

ID: 170810261