S. Jonasson

Nonvascular contribution to ecosystem NPP in a subarctic heath during early and late growing season. (2009)

Campioli, M., Samson, R., Michelsen, A., Jonasson, S., Baxter, R., Lemeur, R.

Abstract Bryophytes and lichens abound in many arctic ecosystems and can contribute substantially to the ecosystem net primary production (NPP). Because of their growth seasonality and their...

Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem (2007)

Rinnan, R, Michelsen, A, Bååth, E, Jonasson, S

Soil microbial biomass in arctic heaths has been shown to be largely unaffected by treatments simulating climate change with temperature, nutrient and light manipulations. Here, we demonstrate that...

Long-term ecosystem level experiments at Toolik Lake, Alaska, and at Abisko, Northern Sweden: generalizations and differences in ecosystem and plant type responses to global change (2004)

Clemmensen, K.E., Shaver, G.R., Williams, M., Callaghans, T.V., Chapin, F.S., ...

Long-term manipulation of the microbes and microfauna of two subarctic heaths by addition of fungicide, bactericide, carbon and fertilizer (2000)

Schmidt, IK, Ruess, L, Bååth, E, Michelsen, A, Ekelund, F, Jonasson, S

Nutrient availability is a major constraint to plant production and carbon storage in arctic ecosystems, but there are few studies coupling processes in the decomposer and microbial food web and the...

Trace gas exchange in a high-arctic valley 1. Variations in CO2 and CH4 flux between tundra vegetation types (2000)

Christensen, TR, Friborg, T, Sommerkorn, M, Kaplan, J, Illeris, L, Sögaard, H, ...

Ecosystem exchanges of CO2 and CH4 were studied by chamber techniques in five different vegetation types in a high arctic valley at Zackenberg, NE Greenland. The vegetation types were categorized as...

Trace gas exchange in a high-arctic valley 1. Variations in CO2 and CH4 flux between tundra vegetation types (2000)

Christensen, T. R., Friborg, T., Sommerkorn, M., Kaplan, J., Illeris, L., Soegaard, H., ...

Ecosystem exchanges of CO2 and CH4 were studied by chamber techniques in five different vegetation types in a high arctic valley at Zackenberg, NE Greenland. The vegetation types were categorized as...

Nutrient use and nutrient cycling in northern ecosystems (1992)

Berendse, F., Jonasson, S.