Matorovansuo

Matorovansuo EC mast. Photo: Jack Chapman

Coordinates: N67° 59.761', E24° 19.053' Altitude (m.a.s.l.): 273 m Ecosystem type: Drained peatland forest, restoration process started in 2024. The northern part of the site is less impacted by drainage and is largely natural open peatland.

Observations

  • CO₂ flux (EC at 14 m since 06/2023)

  • H₂O flux (EC at 14 m since 06/2023)

  • CH₄ flux (manual chamber measurements around the site since 2022)

  • CO₂ flux (manual chamber measurements around the site since 2022)

  • N₂O flux (manual chamber measurements around the site since 2022)

  • Supporting environmental data: Air temperature, air humidity, soil temperature, soil heat flux, soil moisture, water level height, global radiation (up/down), longwave radiation (up/down), photosynthetically active radiation

Climatology

Climate data point (Muonio kk., 20 km): FMISID: 106435, WMO: 02823 Average temperature (°C): -0.6 Annual precipitation (mm): 532 Average snow depth at mid-March (cm): 72 Median snow cover start date: Oct 24 Median snow cover end date: May 14

Environment

Vegetation type: In the northern section: Northern aapa mire with strings and flarks, scattered pine trees on strings. In the southern section: Drained peatland pine forest with encroachment of forest moss and shrub species. Thinning and ditch blocking in July 2024 Ground vegetation: Andromeda polifolia, Carex limosa, C. magellanica, Empetrum nigrum, Rubus chamaemorus, Vaccinium uliginosum, V. microcarpum, V. vitis idaea, Pleurozium shreberi, Polytrichum spp., Sphagnum spp. Mean vegetation height (m): 0.4 in field layer, 5.5 in tree stand Max projected LAI: 2 Soil type: Peat Stand volume (m³ ha⁻¹): In southern section 27 before restoration harvesting and 16 afterwards, in northern section <2. Tree density (ha⁻¹): In southern section 1400 before restoration harvesting and 400 afterwards, in northern section <200. Dominant stand height: 8.4 m before restoration harvest, 8.3 m after restoration harvest Tree age (years): mixed

22.4.2026