National gene conservation unit number: GR12
Population number: -

GCU
Date of collection of the field data entered: 2008
Date of the most recent visit: 2019

POPULATION
Year of Establishment of the GCU for the species: 1993
Date (or partial of date) of the most recent visit: 2014

Location

Unit country: Finland
Unit province or state: -
Unit department or county: -
Unit municipality: Ylitornio
Unit local name: Raanujärvi
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 95 - 135
Unit surface area [ha]: 95.56
Coordinates ( Public coordinates): Latitude (Decimal):66.6467 | Longitude (Decimal): 24.6107

Soil: Water bodies

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.805

Species

All tree species growing in the unit: Betula pubescens; Pinus sylvestris
Target species for conservation in the GCU: Betula pubescens

Unit type: Gene reserve forest, Forest area managed for wood production AND/or multiple uses AND services

Target species: Betula pubescens
Status of the target species in the GCU: -
Category of the target species in the GCU: In situ
Origin of the target species in the GCU : Autochtonous
Population share (%): 70%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: Requires management intervention

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: Clear-cutting with natural regeneration (seed trees or strips)