National gene conservation unit number: 60040015
Population number: -

GCU
Date of collection of the field data entered: 1998
Date of the most recent visit: 2014

POPULATION
Year of Establishment of the GCU for the species: 1998
Date (or partial of date) of the most recent visit: 2014

Location

Unit country: Latvia
Unit province or state: -
Unit department or county: Dagdas novads
Unit municipality: Asunes pagasts
Unit local name: Dagda berzs
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 175 - 180
Unit surface area [ha]: 76.18
Coordinates ( Public coordinates): Latitude (Decimal):56.0241 | Longitude (Decimal): 27.5222

Soil: Gleyic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.193

Species

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

Unit type: Gene reserve forest, Forest area managed for wood production AND/or multiple uses AND services

Target species: Betula pendula
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 : Autochtonous
Population share (%): 100%
Estimated number of reproducing trees (interval): > 5000
Status of long-term viable regeneration: Requires management intervention

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: Clear-cutting with natural regeneration (seed trees or strips)