Country of the unit : | Finland |
Unit number: | FIN00043 |
National gene conservation unit number: | GR43 |
Province or state: | |
Department or county: | |
Municipality: | Lieksa |
Local name : | Koli |
Latitude : | 63°6'30.060000000005"N |
Longitude : | 29°47'52.799999999994"E |
Restriction in making the geographical coordinates publically available: | 0 |
Datum: | |
Polygon coordinates (if available): | |
Minimum elevation (m): | 95 |
Maximum elevation (m): | 220 |
Surface area of the unit (ha): | 140.75 |
Ownership of the unit : | Public |
Type and function of the unit : | Gene reserve forest; Biodiversity conservation (habitats AND/or species) |
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: | |
All tree species growing in the unit: | Pinus sylvestris; Betula pubescens; Betula pendula; Alnus incana; Picea abies |
Target species: | Betula pubescens |
National population unit number if existing: | |
Year of establishment of the GCU for the species: | 2005 |
Year of the most recent visit: | 2014 |
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 maintain genetic diversity in large tree populations |
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 (%): | 96 |
Remarks on the population: | |