Country of the unit : | Finland |
Unit number: | FIN00042 |
National gene conservation unit number: | GR42 |
Province or state: | |
Department or county: | |
Municipality: | Tammisaari |
Local name : | Akkalahti |
Latitude : | 60°2'33.479999999877"N |
Longitude : | 23°1'23.940000000126"E |
Restriction in making the geographical coordinates publically available: | 0 |
Datum: | |
Polygon coordinates (if available): | |
Minimum elevation (m): | 0 |
Maximum elevation (m): | 5 |
Surface area of the unit (ha): | 22.21 |
Ownership of the unit : | Public |
Type and function of the unit : | Gene reserve forest; Biodiversity conservation (habitats AND/or species); Forest area managed for wood production AND/or multiple uses AND services |
Monthly temperature (°C): | |
Total annual mean precipitation (mm): | |
Heat sum and/or length of the growing season (in days): | |
Accumulated moisture deficit: | |
Year of collection of the field data entered: | 2008 |
Year of the most recent visit: | 2019 |
Remarks on specific soil characteristics: | |
Remarks on other specific characteristics of the unit: | Acorns collected repeatedly to produce seedlings. Seedlings were used to plant sites previously dominated by Picea abies. |
All tree species growing in the unit: | Quercus robur; Picea abies; Pinus sylvestris; Fraxinus excelsior |
Target species: | Quercus robur |
National population unit number if existing: | |
Year of establishment of the GCU for the species: | 2004 |
Year of the most recent visit: | 2017 |
Status of the target tree population regarding the EUFORGEN common action plans.: | |
Category of the population: | In situ |
Origin of the material: | Autochtonous |
Predominant silvicultural system: | Clear-cutting with natural regeneration (seed trees or strips) |
Level of management allowed to favour the target species: | Conservation through active intervention carried out |
Main reason for carrying out gene conservation for this species: | To conserve specific adaptive and/or phenotypic traits in marginal or scattered tree populations which are often relatively small |
Total number of reproducing trees per unit: | 500 - 4999 |
Sex ratio, if appropriate: | |
Status of long-term viable regeneration : | Requires management intervention |
Distribution of the reproducing trees in the unit (multiple choice): | In stands; In groups |
Estimated share of the total area within the unit in which the species is occurring (%): | 93 |
Remarks on the population: | |