Finnish Environment Institute | Suomen ympäristökeskus | Finlands miljöcentral

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Northern Häme LTER

Site description

Northern Häme LTER is located some 200 km north of Helsinki on the border of two biogeographical regions of Finland and traits of both southern and northern nature can be seen. The 'heart' of the Northern Häme LTER is Hyytiälä Forestry Field Station of the University of Helsinki. There are 2000 hectares of State own forest nearby the station which is used to teaching and research. Forests are mainly economically managed, but there is also enough protected areas. Research infrastructure includes one of the leading flux stations globally at the forestry field station in Hyytiälä (SMEAR II) linked to active regional ecosystem research (Hyytiälä and Finnish Forest Research Institute's Parkano Research Station) and atmospheric quality research (Finnish Meteorological Institute's Ähtäri station) with active links to ecology research at Seitseminen National Park and landscape level forest management of Metsähallitus. 

Site aims and research themes 

Northern Häme LTER studies the ecosystem properties, biogeochemical cycles, and ecosystem atmosphere interaction and how this is linked to vegetation types and structures, either in different ecosystems or resulting from vegetation management. Northern Häme LTER is particularly suited for producing deep understanding of the ecosystem controls and management impacts of regional greenhouse gas (GHG)-balance. Long-term intensive measurements of ecosystem fluxes, meteorological variables and atmospheric composition provide basis for quantification of atmospheric drivers of ecosystem atmosphere fluxes. Therefore it aims to:

  • Quantify the regional greenhouse gas (GHG) balance 
  • Study the impact of forest management on the regional GHG balance 
  • How the ecosystems contribute to atmospheric aerosol formation 

To answer these main objectives Northern Häme LTER have following research objects: 

  • How atmospheric variation drives ecosystem atmosphere GHG fluxes 
  • How vegetation structure drives ecosystem atmosphere GHG fluxes 
  • How vegetation contributes to BVOC emissions and aerosol formation 
  • Study the transient changes in the ecosystem atmosphere GHG fluxes due to disturbances caused by forest and peatland management.  

Principal contact 

Jaana Bäck (jaana.back(at)helsinki.fi) 

Department of Forest Sciences, P.O.Box 27, FIN-00014 University of Helsinki 

Partners  

University of Helsinki, Finnish Forest Research Institute, Finnish Meteorological Institute, Finnish Forest and Park Service, Pirkanmaa Forestry Centre

Published 2013-05-06 at 13:57, updated 2014-03-28 at 15:46
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