National gene conservation unit number: 23PGD100
Population number: -

GCU
Date of collection of the field data entered: 1996
Date of the most recent visit: 2019

POPULATION
Year of Establishment of the GCU for the species: 1996
Date (or partial of date) of the most recent visit: 2019

Location

Unit country: Lithuania
Unit province or state: Taurage
Unit department or county: Jurbarkas
Unit municipality: Viesvile
Unit local name: Viesvile forest pine state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 85 - 85
Unit surface area [ha]: 35.29
Coordinates ( Public coordinates): Latitude (Decimal):55.1014 | Longitude (Decimal): 22.3153

Soil: Haplic Arenosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.245

Species

All tree species growing in the unit: Picea abies; Pinus sylvestris
Target species for conservation in the GCU: Pinus sylvestris

Unit type: Gene reserve forest

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 : Autochthonous
Population share (%): 72%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: -

Management
Population management: Minimum intervention allowed
Predominant silvicultural system: Close-to-nature forestry