National gene conservation unit number: 60120004
Date of collection of the field data entered: 1986
Date of the most recent visit: 2015

Location

Unit country: Latvia
Unit province or state: -
Unit department or county: Aluksnes novads
Unit municipality: Liepnas pagasts
Unit local name: Liepna liepa
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 125 - 130
Unit surface area [ha]: 32.36
Coordinates (Public coordinates): Latitude (Decimal):57.2762 | Longitude (Decimal): 27.5004

Soil: Gleyic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.216

Species

All tree species reported in the unit: Alnus glutinosa; Betula pendula; Picea abies; Populus tremula; Tilia cordata
Target species for conservation in the GCU: Tilia cordata

Unit type: Gene reserve forest, Biodiversity conservation

Target species: Tilia cordata
Status of the target species in the GCU: Included
Category of the target species in the GCU: In situ
Origin of the target species in the GCU : Autochthonous
Population share (%): 31%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: Sporadic

Management
Population management: Minimum intervention allowed
Predominant silvicultural system: No silviculture