National gene conservation unit number: VV00000449
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: Tønsberg
Unit local name: Gullkronene
Ownership of the unit: Private
Unit elevation [m a.s.l.]: 1 - 26
Unit surface area [ha]: 27.4
Coordinates (Public coordinates): Latitude (Decimal):59.2864 | Longitude (Decimal): 10.3786

Soil: Gleyic Arenosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 2.035

Species

All tree species reported in the unit: Quercus robur; Quercus petraea; Betula pendula; Acer platanoides; Alnus glutinosa; Fraxinus excelsior; Ulmus glabra; Fagus sylvatica; Prunus padus; Betula pubescens; Corylus avellana; Picea abies; Populus tremula; Sorbus aucuparia
Target species for conservation in the GCU: Quercus petraea, Quercus robur

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

Target species: Quercus petraea
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: Requires management intervention

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

Target species: Quercus robur
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: Requires management intervention

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