National gene conservation unit number: 17JGD019
Date of collection of the field data entered: 1995
Date of the most recent visit: 2021

Location

Unit country: Lithuania
Unit province or state: Kaunas
Unit department or county: Raseiniai
Unit municipality: Girdziai
Unit local name: Simkaiciai forest black alder state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 75 - 75
Unit surface area [ha]: 11.7
Coordinates (Public coordinates): Latitude (Decimal):55.1961 | Longitude (Decimal): 22.8347

Soil: Stagnic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.190

Species

All tree species reported in the unit: Alnus glutinosa; Betula pendula; Pinus sylvestris; Picea abies
Target species for conservation in the GCU: Alnus glutinosa

Unit type: Gene reserve forest

Target species: Alnus glutinosa
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 (%): 72%
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)