National gene conservation unit number: CHE00105
Population number: -

GCU
Date of collection of the field data entered: 2024
Date of the most recent visit: 2025

POPULATION
Year of Establishment of the GCU for the species: 2023
Date (or partial of date) of the most recent visit: 2024

Location

Unit country: Switzerland
Unit province or state: BL
Unit department or county: Thal, Thierstein, Waldenburg
Unit municipality: Beinwil (SO), Lauwil, Mümliswil-Ramiswil, Reigoldswil, Waldenbur
Unit local name: Region Passwang Nord
Ownership of the unit: Other
Unit elevation [m a.s.l.]: 549 - 1157
Unit surface area [ha]: 295.002
Coordinates ( Public coordinates): Latitude (Decimal):47.3751 | Longitude (Decimal): 7.6744

Soil: Humic Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 1.777

Species

All tree species growing in the unit: Acer pseudoplatanus
Target species for conservation in the GCU: Acer pseudoplatanus

Unit type: Gene reserve forest, Biodiversity conservation

Target species: Acer pseudoplatanus
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 (%): 50%
Estimated number of reproducing trees (interval): >5001
Status of long-term viable regeneration: -

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: Close-to-nature forestry