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National gene conservation unit number: 81
Date of collection of the field data entered: 1996
Date of the most recent visit: 2006
 Location
Unit country: Austria
Unit province or state: Vorarlberg
Unit department or county: Bregenz
Unit municipality: -
Unit local name: Naturwaldreservat "Rohrach" (LGBl.Nr. 43/1992), an der Staatsgrenze zur BRD
Ownership of the unit:
Private
Unit elevation [m a.s.l.]: 480 - 720
Unit surface area [ha]: 48
Coordinates (Restricted coordinates):
Latitude (Decimal): 47…**** | Longitude (Decimal): 9.…****
Soil: Dystric Cambisols
Climate
Mean monthly temperature and mean monthly precipitation2
Climatic zone: Boreal / Alpine.
Environmental zone:Cold and mesic.
Aridity index: 2.505
Species
All tree species reported in the unit: Acer pseudoplatanus; Taxus baccata; Picea abies; Fraxinus excelsior; Fagus sylvatica; Abies alba
Target species for conservation in the GCU:
Abies alba,
Acer pseudoplatanus,
Fagus sylvatica,
Fraxinus excelsior,
Picea abies,
Taxus baccata
Unit type:
Gene reserve forest, Biodiversity conservation (habitats AND/or species), Protective forest area (soil, water, timber line, etc.)
Target species: Abies alba
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Acer pseudoplatanus
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Fagus sylvatica
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Fraxinus excelsior
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Picea abies
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Taxus baccata
Status of the target species in the GCU: Pending
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): 15 - 49
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
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