National gene conservation unit number: SK 314-2015
Population number: -

GCU
Date of collection of the field data entered: 2015
Date of the most recent visit: 2015

POPULATION
Year of Establishment of the GCU for the species: 2015
Date (or partial of date) of the most recent visit: 2015

Location

Unit country: Sweden
Unit province or state: Sweden
Unit department or county: Gavleborgs lan
Unit municipality: Bollnas
Unit local name: Bellsasen
Ownership of the unit: Private
Unit elevation [m a.s.l.]: 241 - 319
Unit surface area [ha]: 8.5
Coordinates ( Public coordinates): Latitude (Decimal):61.2217 | Longitude (Decimal): 16.2867

Soil: Haplic Podzols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.569

Species

All tree species growing in the unit: Betula pendula; Populus tremula
Target species for conservation in the GCU: Betula pendula, Populus tremula

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 (%): 50%
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