National gene conservation unit number: 11AGD032
Date of collection of the field data entered: 1992
Date of the most recent visit: 2023

Location

Unit country: Lithuania
Unit province or state: Kaunas
Unit department or county: Jonava
Unit municipality: Zeimiai
Unit local name: Didelis forest oak state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 70 - 70
Unit surface area [ha]: 9.5
Coordinates (Public coordinates): Latitude (Decimal):55.2281 | Longitude (Decimal): 24.1687

Soil: Gleyic Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.013

Species

All tree species reported in the unit: Quercus robur; Betula pendula
Target species for conservation in the GCU: Quercus robur

Unit type: Gene reserve forest

Target species: Quercus robur
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 (%): 54%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -

Management
Population management: Minimum intervention allowed
Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)