National gene conservation unit number: VV00001139
Date of collection of the field data entered: 2009
Date of the most recent visit: 2009

Location

Unit country: Norway
Unit province or state: -
Unit department or county: Vestfold
Unit municipality: Larvik
Unit local name: Brånakollene
Ownership of the unit: Private
Unit elevation [m a.s.l.]: 175 - 227
Unit surface area [ha]: 39.3
Coordinates (Public coordinates): Latitude (Decimal):59.1958 | Longitude (Decimal): 10.0497

Soil: Haplic Podzols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 2.157

Species

All tree species reported in the unit: Tilia cordata; Alnus glutinosa; Fagus sylvatica; Fraxinus excelsior; Alnus incana; Prunus padus; Corylus avellana; Picea abies; Populus tremula; Quercus robur; Taxus baccata
Target species for conservation in the GCU: Fagus sylvatica

Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species)

Target species: Fagus sylvatica
Status of the target species in the GCU: Included
Category of the target species in the GCU: In situ
Origin of the target species in the GCU : Autochtonous
Population share (%): 100%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: Continuous

Management
Population management: Minimum intervention allowed
Predominant silvicultural system: No silviculture