
National gene conservation unit number: CHE00072 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: Imboden Unit municipality: Tamins Unit local name: Region Imboden Ownership of the unit: Other Unit elevation [m a.s.l.]: 578 - 839 Unit surface area [ha]: 117.616 Coordinates (Public coordinates): Latitude (Decimal):46.8359 \| Longitude (Decimal): 9.4203 Soil: Humic Cambisols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Boreal / Alpine. Environmental zone:Cold and mesic. Aridity index: 1.232 Species All tree species reported in the unit: *Quercus pubescens; Quercus petraea* Target species for conservation in the GCU: **Quercus petraea, Quercus pubescens Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species) Target species: Quercus petraea 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): 500 - 4999 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) Target species: Quercus pubescens 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 (%): 50% Estimated number of reproducing trees (interval): 500 - 4999 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: CHE00072
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: Imboden
Unit municipality: Tamins
Unit local name: Region Imboden
Ownership of the unit: Other
Unit elevation [m a.s.l.]: 578 - 839
Unit surface area [ha]: 117.616
Coordinates (Public coordinates): Latitude (Decimal):46.8359 | Longitude (Decimal): 9.4203

Soil: Humic Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 1.232

Species

All tree species reported in the unit: Quercus pubescens; Quercus petraea
Target species for conservation in the GCU: Quercus petraea, Quercus pubescens

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

Target species: Quercus petraea
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): 500 - 4999
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)

Target species: Quercus pubescens
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 (%): 50%
Estimated number of reproducing trees (interval): 500 - 4999
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)