National gene conservation unit number: 53UGD006
Date of collection of the field data entered: 19950101
Date of the most recent visit: 2026

Location

Unit country: Lithuania
Unit province or state: Šiauliai
Unit department or county: Šiauliai
Unit municipality: Urkuvėnai
Unit local name: Pusgudziai forest ash state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 110 - 110
Unit surface area [ha]: 8.44
Coordinates (Public coordinates): Latitude (Decimal):55.9024 | Longitude (Decimal): 22.8475

Soil: Eutric Podzoluvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.098

Species

All tree species reported in the unit: Alnus glutinosa; Betula pendula; Fraxinus excelsior; Picea abies; Populus tremula; Quercus robur
Target species for conservation in the GCU: Fraxinus excelsior

Unit type: Gene reserve forest

Target species: Fraxinus excelsior
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 (%): 70%
Estimated number of reproducing trees (interval): 51 - 500
Status of long-term viable regeneration: -

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