The eLTER Site Hyytiälä SMEAR II is located at the 124-years-old Hyytiälä Forestry Field Station, owned by the University of Helsinki.  

Situated in the middle of boreal mixed-coniferous forest, with several small lakes and wetlands nearby, the station provides a home for teaching and research on forest sciences, and has simultaneously evolved into an international hub of multidisciplinary top-level research. Four ESFRI infrastructures (eLTER, ICOS, ACTRIS and AnaEE) are co-located at the station, which offers year-round services for research, course activities and other gatherings. 

At the SMEAR II station (Station for Measuring Ecosystem Atmosphere Relations), research on interactions between the forest ecosystem and the atmosphere has been ongoing for nearly 30 years. SMEAR II is the world’s leading measuring station in research investigating the formation of fine particles produced by ecosystems.

Researchers at Hyytiälä collaborate actively with local stakeholders, including municipalities, private forest owners, Metsähallitus (the national forest service) and local schools. Science-art collaboration manifests itself in a permanent arts exhibition ‘Periferia’, open to the public. Significant nature reserves are also located nearby, including protected peatlands in Siikaneva, 10 km SW from the station. A recently constructed wooden building and the Living Lab research environment enable multidisciplinary research and teaching related to the effects of the built environment on sustainability, the climate and human wellbeing.

The site visit will include: 

• guided tour to SMEAR II forest stand (co-located ICOS Ecosystem, ICOS Atmosphere, AnaEE and ACTRIS site)

• guided tour to Siikaneva open peatland research site (co-located ICOS Ecosystem, ICOS Atmosphere, AnaEE and ACTRIS site)

• visit to the ‘Periferia’ arts exhibition

• lunch and refreshments

Hyytiälä programme

The University of Helsinki’s Lammi Biological Station was established in 1953 and is situated in the boreal coniferous forest zone in the midst of dozens of lakes, eskers, mires and farms. Located on the shores of Lake Pääjärvi, the station is surrounded by a protected broadleaf forest teeming with biodiversity. Pääjärvi is one of Finland’s deepest lakes and a home of several relict crustaceans. It is also the most intensively studied and monitored lake in Finland.

A short drive from the station is the Evo national recreational area which is the largest contiguously forested region in southern Finland. The research in Evo is diverse, concentrating on forests and various kinds of wetlands. The intensive environmental monitoring in Evo is focused in Kotinen old-growth forest area and the Lake Valkea-Kotinen within. The area has also been an ICP-integrated site since 1988. There the research is conducted also by many other universities and research institutions, such as the Finnish Environment Institute, Natural Resources Finland, and the Finnish Meteorological Institute.

Lammi Biological Station operates all year round and is the largest of the university field stations in Finland. The facilities of the station offer opportunities for multifaceted research and teaching. The station has its own laboratory specialised in water analyses. The extensive monitoring data often covers several decades and gives a solid background for short-term studies and experimental research. The station is a platform in the Analyses of Experimental Ecosystems consortium (AnaEE). Modern experimental facilities can be found in- and out-doors. The station supports a wide variety of research and provides commissioned services in research-related assistance, sampling and analysis.

Lammi programme 

The Seitseminen National Park is located 50 km NW from Tampere. It was established in 1982, although parts of the forest have been protected already in 1910’s. The park contains the history of forest use, but also some of the most ancient and oldest forests that are accessible to public in Finland, including the Multiharju primeval forest with trees over 400 years old. Mires make more than half of the National Park area, with pine bogs, spruce bogs and quite large treeless bogs.

The park has also areas where prescribed burning or rewetting has been done for habitat restoration. 

Seitseminen programme