National gene conservation unit number: UP/373/07/01/001
Population number: -

GCU
Date of collection of the field data entered: 2018
Date of the most recent visit: 2018

POPULATION
Year of Establishment of the GCU for the species: 2018
Date (or partial of date) of the most recent visit: 2018

Location

Unit country: Spain
Unit province or state: Euskadi
Unit department or county: Álava
Unit municipality: Arraia-Maeztu
Unit local name: -
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 701
Unit surface area [ha]: 1247.93
Coordinates ( Public coordinates): Latitude (Decimal):42.6904 | Longitude (Decimal): -2.4593

Soil: Rendzic Leptosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Warm temperate.
Environmental zone:Warm temperate and mesic.
Aridity index: 0.976

Species

All tree species growing in the unit: Betula pendula
Target species for conservation in the GCU: Betula pendula

Unit type: Seed stand

Target species: Betula pendula
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 (%): 100%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -

Management
Population management: -
Predominant silvicultural system: -