National gene conservation unit number: 53JGD005
Date of collection of the field data entered: 1994
Date of the most recent visit: 2020

Location

Unit country: Lithuania
Unit province or state: Siauliai
Unit department or county: Siauliai
Unit municipality: Darziskes
Unit local name: Tryskiai forest alder I state genetic reserve
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 120 - 120
Unit surface area [ha]: 9.57
Coordinates (Public coordinates): Latitude (Decimal):56.0571 | Longitude (Decimal): 22.7123

Soil: Calcic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.134

Species

All tree species reported in the unit: Alnus glutinosa; Betula pendula; 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 : Autochthonous
Population share (%): 70%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: -

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: Close-to-nature forestry