
National gene conservation unit number: CHE00020 Date of collection of the field data entered: 2020 Date of the most recent visit: 2020 Location Unit country: Switzerland Unit province or state: GR Unit department or county: Albula,Viamala Unit municipality: Salouf Unit local name: Auerhuhn Surses Ownership of the unit: Public Unit elevation [m a.s.l.]: 1128 - 2113 Unit surface area [ha]: 1807.4 Coordinates (Public coordinates): Latitude (Decimal):46.6358 \| Longitude (Decimal): 9.5421 Soil: Umbric Gleysols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Boreal / Alpine. Environmental zone:Extremely cold and mesic. Aridity index: 2.460 Species All tree species reported in the unit: *Picea abies; Pinus uncinata* Target species for conservation in the GCU: *Picea abies* Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species) Target species: Picea abies 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 (%): 100% 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: CHE00020
Date of collection of the field data entered: 2020
Date of the most recent visit: 2020

Location

Unit country: Switzerland
Unit province or state: GR
Unit department or county: Albula,Viamala
Unit municipality: Salouf
Unit local name: Auerhuhn Surses
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 1128 - 2113
Unit surface area [ha]: 1807.4
Coordinates (Public coordinates): Latitude (Decimal):46.6358 | Longitude (Decimal): 9.5421

Soil: Umbric Gleysols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Extremely cold and mesic.
Aridity index: 2.460

Species

All tree species reported in the unit: Picea abies; Pinus uncinata
Target species for conservation in the GCU: Picea abies

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

Target species: Picea abies
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 (%): 100%
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)