European Information System on Forest Genetic Resources
Detail page for Unit number: PRT00001 and Target species: Populus nigra
| Country of the unit : | Portugal |
| Unit number: | PRT00001 |
| National gene conservation unit number: | PRT00001 |
| Province or state: | Portugal |
| Department or county: | Alentejo |
| Municipality: | Alter do Chäo |
| Local name : | Coudelaria de Alter |
| Latitude : | 39°13'12.0688"N |
| Longitude : | 7°40'55.8838"W |
| Restriction in making the geographical coordinates publically available: | 0 |
| Datum: | |
| Polygon coordinates (if available): | |
| Minimum elevation (m): | 190 |
| Maximum elevation (m): | 230 |
| Surface area of the unit (ha): | 10.1 |
| Ownership of the unit : | Public |
| Type and function of the unit : | Protective forest area (soil, water, timber line, etc.) |
| 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: | 2002 |
| Year of the most recent visit: | 2007 |
| Remarks on specific soil characteristics: | |
| Remarks on other specific characteristics of the unit: | Last visit 2009. Fraxinus angustifolia shows excelent naturla regeneration by seedlings and stump sprouting |
| All tree species growing in the unit: | Fraxinus angustifolia; Populus nigra |
| Target species: | Populus nigra |
| National population unit number if existing: | |
| Year of establishment of the GCU for the species: | 2000 |
| Year of the most recent visit: | 2007 |
| 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: | 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): | Scattered |
| Estimated share of the total area within the unit in which the species is occurring (%): | 20 |
| Remarks on the population: | Trees are old, promotion and protection of natural regeneration is need. Hybrid poplars that have been planted downstream some few decades ago should be removed since pollen flow is possible. Seeds and any other plant material collection requires written authorization from the Coudelaria de Alter legal representative. |