Country of the unit : | Sweden |
Unit number: | SWE00338 |
National gene conservation unit number: | SK 40-2017 |
Province or state: | Sweden |
Department or county: | Vasterbottens lan |
Municipality: | Vannas |
Local name : | Langnas |
Latitude : | 63°58'1.005"N |
Longitude : | 19°41'24.687"E |
Restriction in making the geographical coordinates publically available: | 0 |
Datum: | |
Polygon coordinates (if available): | |
Minimum elevation (m): | 102 |
Maximum elevation (m): | 121 |
Surface area of the unit (ha): | 7.5 |
Ownership of the unit : | Private |
Type and function of the unit : | 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: | 2017 |
Year of the most recent visit: | 2017 |
Remarks on specific soil characteristics: | |
Remarks on other specific characteristics of the unit: | |
All tree species growing in the unit: | Pinus sylvestris; Alnus incana; Salix caprea; Betula pubescens; Picea abies |
Target species: | Salix caprea |
National population unit number if existing: | |
Year of establishment of the GCU for the species: | 2017 |
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: | 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: | 50 - 499 |
Sex ratio, if appropriate: | |
Status of long-term viable regeneration : | |
Distribution of the reproducing trees in the unit (multiple choice): | In stands |
Estimated share of the total area within the unit in which the species is occurring (%): | 40 |
Remarks on the population: | Hold back surrouning trees |