National gene conservation unit number: 3
Date of collection of the field data entered: 2020
Date of the most recent visit: 2020

Location

Unit country: United Kingdom
Unit province or state: Wales
Unit department or county: Gwynedd
Unit municipality: Rhyd y Sarn, Blaenau Ffestiniog
Unit local name: Coed Cymerau Isaf
Ownership of the unit: Public
Unit elevation [m a.s.l.]:
Unit surface area [ha]: 26.2
Coordinates (Public coordinates): Latitude (Decimal):52.9675 | Longitude (Decimal): -3.9481

Soil: Dystric Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 3.205

Species

All tree species reported in the unit: Betula pendula; Corylus avellana; Quercus petraea; Sorbus aucuparia
Target species for conservation in the GCU: Betula pendula, Quercus petraea

Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species)

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 (%): 29%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -

Management
Population management: -
Predominant silvicultural system: -

Target species: Quercus petraea
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 (%): 70%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -

Management
Population management: -
Predominant silvicultural system: -