
National gene conservation unit number: CHE00055 Date of collection of the field data entered: 2022 Date of the most recent visit: 2022 Location Unit country: Switzerland Unit province or state: TI Unit department or county: Locarno Unit municipality: Onsernone Unit local name: Onsernone Ownership of the unit: Other Unit elevation [m a.s.l.]: 650 - 1747 Unit surface area [ha]: 791 Coordinates (Public coordinates): Latitude (Decimal):46.1910 \| Longitude (Decimal): 8.5862 Soil: Haplic Podzols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Boreal / Alpine. Environmental zone:Cold and wet. Aridity index: 3.799 Species All tree species reported in the unit: *Abies alba; Picea abies* Target species for conservation in the GCU: **Abies alba, Picea abies Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species) Target species: Abies alba 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: Minimum intervention allowed Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging) 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: Minimum intervention allowed Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)**

National gene conservation unit number: CHE00055
Date of collection of the field data entered: 2022
Date of the most recent visit: 2022

Location

Unit country: Switzerland
Unit province or state: TI
Unit department or county: Locarno
Unit municipality: Onsernone
Unit local name: Onsernone
Ownership of the unit: Other
Unit elevation [m a.s.l.]: 650 - 1747
Unit surface area [ha]: 791
Coordinates (Public coordinates): Latitude (Decimal):46.1910 | Longitude (Decimal): 8.5862

Soil: Haplic Podzols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Boreal / Alpine.
Environmental zone:Cold and wet.
Aridity index: 3.799

Species

All tree species reported in the unit: Abies alba; Picea abies
Target species for conservation in the GCU: Abies alba, Picea abies

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

Target species: Abies alba
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: Minimum intervention allowed
Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)

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: Minimum intervention allowed
Predominant silvicultural system: Close-to-natural forestry (continuous cover forest, selective logging)