
National gene conservation unit number: CHE00070 Date of collection of the field data entered: 2023 Date of the most recent visit: 2023 Location Unit country: Switzerland Unit province or state: GR Unit department or county: Surselva,Imboden Unit municipality: Bonaduz Unit local name: Region Rheinschlucht Ownership of the unit: Other Unit elevation [m a.s.l.]: 595 - 1115 Unit surface area [ha]: 239.719 Coordinates (Public coordinates): Latitude (Decimal):46.8048 \| Longitude (Decimal): 9.3332 Soil: Humic Cambisols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Cool temperate. Environmental zone:Cool temperate and moist. Aridity index: 1.094 Species All tree species reported in the unit: *Pinus sylvestris* Target species for conservation in the GCU: *Pinus sylvestris* Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species) Target species: Pinus 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 : Autochtonous Population share (%): 75% Estimated number of reproducing trees (interval): > 5000 Status of long-term viable regeneration: - Management Population management: Conservation through active intervention carried out Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)

National gene conservation unit number: CHE00070
Date of collection of the field data entered: 2023
Date of the most recent visit: 2023

Location

Unit country: Switzerland
Unit province or state: GR
Unit department or county: Surselva,Imboden
Unit municipality: Bonaduz
Unit local name: Region Rheinschlucht
Ownership of the unit: Other
Unit elevation [m a.s.l.]: 595 - 1115
Unit surface area [ha]: 239.719
Coordinates (Public coordinates): Latitude (Decimal):46.8048 | Longitude (Decimal): 9.3332

Soil: Humic Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 1.094

Species

All tree species reported in the unit: Pinus sylvestris
Target species for conservation in the GCU: Pinus sylvestris

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

Target species: Pinus 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 : Autochtonous
Population share (%): 75%
Estimated number of reproducing trees (interval): > 5000
Status of long-term viable regeneration: -

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)