Country of the unit : | Netherlands |
Unit number: | NLD00022 |
National gene conservation unit number: | NL.SI.3.6.23-02 |
Province or state: | Limburg |
Department or county: | |
Municipality: | Gulpen-Wittem |
Local name : | Wittem, midden-zuidrand Eyserbos |
Latitude : | 50°49'44.5"N |
Longitude : | 005°55'09.9"E |
Restriction in making the geographical coordinates publically available: | 0 |
Datum: | |
Polygon coordinates (if available): | |
Minimum elevation (m): | 150 |
Maximum elevation (m): | 170 |
Surface area of the unit (ha): | 4 |
Ownership of the unit : | Public |
Type and function of the unit : | Gene reserve forest; Biodiversity conservation (habitats AND/or species); Seed stand |
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: | 2019 |
Year of the most recent visit: | 2018 |
Remarks on specific soil characteristics: | Calcareous rock with topsoil |
Remarks on other specific characteristics of the unit: | Natura2000 |
All tree species growing in the unit: | Corylus avellana; Cornus sanguinea; Salix caprea; Viburnum opulus |
Target species: | Cornus sanguinea |
National population unit number if existing: | NL.SI.3.6.23-02 |
Year of establishment of the GCU for the species: | 2019 |
Year of the most recent visit: | 2018 |
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: | No silviculture |
Level of management allowed to favour the target species: | |
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 : | Continuous |
Distribution of the reproducing trees in the unit (multiple choice): | Scattered; In groups |
Estimated share of the total area within the unit in which the species is occurring (%): | 30 |
Remarks on the population: | |