National gene conservation unit number: SK 76-2014
Date of collection of the field data entered: 2014
Date of the most recent visit: 2014
Location
Unit country: Sweden
Unit province or state: Vastra Gotalands lan
Unit department or county: Vastra Gotalands lan
Unit municipality: Tanum
Unit local name: Bottna
Ownership of the unit:
Private
Unit elevation [m a.s.l.]: 31 - 107
Unit surface area [ha]: 5.3
Coordinates (Public coordinates):
Latitude (Decimal):58.5010 | Longitude (Decimal): 11.3881
Soil: Lithic Leptosols
Climate
Mean monthly temperature and mean monthly precipitation2
All tree species reported in the unit: Ulmus glabra; Prunus avium; Quercus robur; Alnus glutinosa; Tilia cordata; Fraxinus excelsior; Quercus petraea
Target species for conservation in the GCU:
Alnus glutinosa,
Fraxinus excelsior,
Prunus avium,
Quercus petraea,
Quercus robur,
Tilia cordata,
Ulmus glabra
Unit type:
Biodiversity conservation (habitats AND/or species)
Target species: Alnus glutinosa
Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 40%
Estimated number of reproducing trees (interval): 50 - 499
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: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 25%
Estimated number of reproducing trees (interval): 50 - 499
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Prunus avium
Status of the target species in the GCU: - 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
Target species: Quercus petraea
Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 25%
Estimated number of reproducing trees (interval): 50 - 499
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Target species: Quercus robur
Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 50%
Estimated number of reproducing trees (interval): 50 - 499
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)
Target species: Tilia cordata
Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 25%
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
Target species: Ulmus glabra
Status of the target species in the GCU: - 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): 50 - 499
Status of long-term viable regeneration: -
Management
Population management: No intervention allowed
Predominant silvicultural system: No silviculture
Location
