National gene conservation unit number: CHE00017
Population number: -

GCU
Date of collection of the field data entered: 2020
Date of the most recent visit: 2020

POPULATION
Year of Establishment of the GCU for the species: 2020
Date (or partial of date) of the most recent visit: 2020

Location

Unit country: Switzerland
Unit province or state: GR
Unit department or county: Landquart
Unit municipality: Zizers
Unit local name: Obere Au Zizers
Ownership of the unit: Other
Unit elevation [m a.s.l.]: 528 - 534
Unit surface area [ha]: 18.5
Coordinates ( Public coordinates): Latitude (Decimal):46.9241 | Longitude (Decimal): 9.5592

Soil: Calcaric Phaeozems

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 1.204

Species

All tree species growing in the unit: Populus nigra
Target species for conservation in the GCU: Populus nigra

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

Target species: Populus nigra
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 : Unknown
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)