National gene conservation unit number: SK 511-2017
Date of collection of the field data entered: 2017
Date of the most recent visit: 2017
Location
Unit country: Sweden
Unit province or state: Sweden
Unit department or county: Varmlands lan
Unit municipality: Arjang
Unit local name: Hagtjarn
Ownership of the unit:
Private
Unit elevation [m a.s.l.]: 150 - 196
Unit surface area [ha]: 7.9
Coordinates (Public coordinates):
Latitude (Decimal):59.4752 | Longitude (Decimal): 12.1057
Soil: Lithic Leptosols
Climate
Mean monthly temperature and mean monthly precipitation2
All tree species reported in the unit: Picea abies; Betula pendula; Pinus sylvestris
Target species for conservation in the GCU:
Betula pendula,
Picea abies,
Pinus sylvestris
Unit type:
Biodiversity conservation (habitats AND/or species)
Target species: Betula pendula
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 (%): 100%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Picea abies
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 (%): 100%
Estimated number of reproducing trees (interval): > 5000
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Pinus sylvestris
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 (%): 100%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture