
National gene conservation unit number: CHE00065 Date of collection of the field data entered: 2022 Date of the most recent visit: 2022 Location Unit country: Switzerland Unit province or state: ZH Unit department or county: Affoltern,Horgen Unit municipality: Horgen Unit local name: Sihlwald Ownership of the unit: Public Unit elevation [m a.s.l.]: 477 - 910 Unit surface area [ha]: 956 Coordinates (Public coordinates): Latitude (Decimal):47.2547 \| Longitude (Decimal): 8.5548 Soil: Gleyic Cambisols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Cool temperate. Environmental zone:Cool temperate and moist. Aridity index: 2.252 Species All tree species reported in the unit: *Fagus sylvatica* Target species for conservation in the GCU: *Fagus sylvatica* Unit type: Gene reserve forest, Biodiversity conservation (habitats AND/or species) Target species: Fagus sylvatica 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: CHE00065
Date of collection of the field data entered: 2022
Date of the most recent visit: 2022

Location

Unit country: Switzerland
Unit province or state: ZH
Unit department or county: Affoltern,Horgen
Unit municipality: Horgen
Unit local name: Sihlwald
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 477 - 910
Unit surface area [ha]: 956
Coordinates (Public coordinates): Latitude (Decimal):47.2547 | Longitude (Decimal): 8.5548

Soil: Gleyic Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 2.252

Species

All tree species reported in the unit: Fagus sylvatica
Target species for conservation in the GCU: Fagus sylvatica

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

Target species: Fagus sylvatica
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)