European Information System on Forest Genetic Resources
Detail page for Unit number: CHE00086 and Target species: Picea abies
| Country of the unit : | Switzerland |
| Unit number: | CHE00086 |
| National gene conservation unit number: | CHE00086 |
| Province or state: | VS |
| Department or county: | Goms,Raron |
| Municipality: | Grengiols |
| Local name : | Twingi |
| Latitude : | 46°21'51.943057200008"N |
| Longitude : | 8°9'15.322603715997"E |
| Restriction in making the geographical coordinates publically available: | 0 |
| Datum: | |
| Polygon coordinates (if available): | |
| Minimum elevation (m): | 1160 |
| Maximum elevation (m): | 2178 |
| Surface area of the unit (ha): | 437.414 |
| Ownership of the unit : | Other |
| 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: | 2023 |
| Year of the most recent visit: | 2023 |
| Remarks on specific soil characteristics: | |
| Remarks on other specific characteristics of the unit: | |
| All tree species growing in the unit: | Picea abies |
| Target species: | Picea abies |
| National population unit number if existing: | Fi_12 |
| Year of establishment of the GCU for the species: | 2023 |
| Year of the most recent visit: | 2023 |
| Status of the target tree population regarding the EUFORGEN common action plans.: | Included |
| Category of the population: | In situ |
| Origin of the material: | Unknown |
| Predominant silvicultural system: | Close-to-natural forestry (continuous cover forest, selective logging) |
| Level of management allowed to favour the target species: | Minimum intervention allowed |
| 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: | > 5000 |
| Sex ratio, if appropriate: | Even sex ratio |
| Status of long-term viable regeneration : | |
| Distribution of the reproducing trees in the unit (multiple choice): | |
| Estimated share of the total area within the unit in which the species is occurring (%): | 25 |
| Remarks on the population: |