Organic carbon in lake ecosystems during the past 10 000 years
Climate change plays a major role for changes in vegetation, hydrological pathways, permafrost distribution in arctic and subarctic landscapes. These changes will affect the transportation of organic carbon (OC) from terrestrial to aquatic environments. Our main interest is to assess how historical changes in the landscape have affected the transportation of organic carbon to lake ecosystems. A second interest is to study how these changes affect the algae communities and the transportation of pollution. Of particular interest are the linkages between terrestrial and aquatic ecosystems.
We mainly use infrared spectroscopy (FTIRS, VNIRS) and WD-XRF to further understand the effects of long term changes on carbon cycling (Rosén 2005; Rosén and Hammarlund 2007; Rosén et al. 2009; Kokfelt et al. 2009; Cunningham et al. in 2010; Rydberg et al. 2010). Of special interest is the effects of past climate, permafrost dynamics, tree-line changes, fire, acidification/liming, mire formation and early agricultural land-use for the carbon cycling.
In collboration with SLU, Uppsala; Lund University; University College London; Queens University, Canada; Université Laval, Canada.
This research is funded via FORMAS, Naturvårdsverket and Kempe foundation.