National gene conservation unit number: VV00001864
Date of collection of the field data entered: 1993
Date of the most recent visit: 1993

Location

Unit country: Norway
Unit province or state: -
Unit department or county: Aust-Agder
Unit municipality: Åmli, Bygland
Unit local name: Årdalen
Ownership of the unit: Private
Unit elevation [m a.s.l.]: 430 - 820
Unit surface area [ha]: 2128
Coordinates (Public coordinates): Latitude (Decimal):58.9156 | Longitude (Decimal): 7.9961

Soil: Dystric Regosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and wet.
Aridity index: 3.084

Species

All tree species reported in the unit: Picea abies; Pinus sylvestris; Betula pubescens; Ulmus glabra; Corylus avellana; Acer platanoides; Alnus incana; Prunus padus; Populus tremula; Sorbus aucuparia
Target species for conservation in the GCU: Picea abies

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

Target species: Picea abies
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): > 5000
Status of long-term viable regeneration: Continuous

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