National gene conservation unit number: 21
Date of collection of the field data entered: 2022
Date of the most recent visit: 2023

Location

Unit country: United Kingdom
Unit province or state: Wales
Unit department or county: Gwynedd
Unit municipality: Abergwyngregyn
Unit local name: Coedydd Aber NNR
Ownership of the unit: Both
Unit elevation [m a.s.l.]: 80 - 200
Unit surface area [ha]: 122.3
Coordinates (Public coordinates): Latitude (Decimal):53.2199 | Longitude (Decimal): -4.0020

Soil: Umbric Leptosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 2.370

Species

All tree species reported in the unit: Alnus glutinosa; Betula pubescens; Corylus avellana; Crataegus monogyna; Fraxinus excelsior; Malus sylvestris; Prunus spinosa; Quercus petraea; Sorbus aucuparia; Ulmus glabra
Target species for conservation in the GCU: Malus sylvestris

Unit type: Gene reserve forest, Biodiversity conservation, Seed stand, Managed forest area

Target species: Malus sylvestris
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 (%): 100%
Estimated number of reproducing trees (interval): 51 - 500
Status of long-term viable regeneration: Required management intervention

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: No silviculture