National gene conservation unit number: NL.SI.3.5.20-01
Date of collection of the field data entered: 2016
Date of the most recent visit: 2022

Location

Unit country: Netherlands
Unit province or state: Limburg
Unit department or county: -
Unit municipality: Roerdalen
Unit local name: Roerdalen, Meinweg
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 55 - 60
Unit surface area [ha]: 4
Coordinates (Public coordinates): Latitude (Decimal):51.1781 | Longitude (Decimal): 6.1180

Soil: Haplic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 1.189

Species

All tree species reported in the unit: Betula pendula; Betula pubescens
Target species for conservation in the GCU: Betula pendula, Betula pubescens

Unit type: Biodiversity conservation, 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 : Autochthonous
Population share (%): 100%
Estimated number of reproducing trees (interval): 15 - 50
Status of long-term viable regeneration: Sporadic

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

Target species: Betula pubescens
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 : Autochthonous
Population share (%): 100%
Estimated number of reproducing trees (interval): 51 - 500
Status of long-term viable regeneration: -

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