Country of the unit : | Finland |
Unit number: | FIN00023 |
National gene conservation unit number: | GR23 |
Province or state: | |
Department or county: | |
Municipality: | Punkaharju |
Local name : | Haarikonmäki |
Latitude : | 61°34'4.2599999999999"N |
Longitude : | 29°11'27.060000000004"E |
Restriction in making the geographical coordinates publically available: | 0 |
Datum: | |
Polygon coordinates (if available): | |
Minimum elevation (m): | 105 |
Maximum elevation (m): | 160 |
Surface area of the unit (ha): | 5.65 |
Ownership of the unit : | Public |
Type and function of the unit : | Gene reserve forest; 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: | 2021 |
Remarks on specific soil characteristics: | |
Remarks on other specific characteristics of the unit: | Leaf samples of Acer platanoides sent to Austria |
All tree species growing in the unit: | Tilia cordata; Betula pendula; Picea abies; Acer platanoides; Pinus sylvestris |
Target species: | Acer platanoides |
National population unit number if existing: | |
Year of establishment of the GCU for the species: | 1993 |
Year of the most recent visit: | 2016 |
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: | Close-to-natural forestry (continuous cover forest, selective logging) |
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 rare or endangered tree species with populations consisting of a low number of remaining individuals |
Total number of reproducing trees per unit: | 15 - 49 |
Sex ratio, if appropriate: | |
Status of long-term viable regeneration : | Requires management intervention |
Distribution of the reproducing trees in the unit (multiple choice): | In groups |
Estimated share of the total area within the unit in which the species is occurring (%): | 100 |
Remarks on the population: | |