National gene conservation unit number: 33JGD008
Date of collection of the field data entered: 1992
Date of the most recent visit: 2021

Location

Unit country: Lithuania
Unit province or state: Marijampole
Unit department or county: Vilkaviskis
Unit municipality: Klausuciai
Unit local name: Zalioji forest black alder state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 70 - 70
Unit surface area [ha]: 30.5
Coordinates (Public coordinates): Latitude (Decimal):54.7161 | Longitude (Decimal): 22.9644

Soil: Calcic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and dry.
Aridity index: 1.020

Species

All tree species reported in the unit: Betula pendula; Alnus glutinosa
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 (%): 81%
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)