
National gene conservation unit number: PRT00001 Date of collection of the field data entered: 2002 Date of the most recent visit: 2007 Location Unit country: Portugal Unit province or state: Portugal Unit department or county: Alentejo Unit municipality: Alter do Chäo Unit local name: Coudelaria de Alter Ownership of the unit: Public Unit elevation [m a.s.l.]: 190 - 230 Unit surface area [ha]: 10.1 Coordinates (Public coordinates): Latitude (Decimal):39.2200 \| Longitude (Decimal): -7.6822 Soil: Dystric Regosols Climate Mean monthly temperature and mean monthly precipitation² Climatic zone: Warm temperate. Environmental zone:Warm temperate and xeric. Aridity index: 0.620 Species All tree species reported in the unit: *Fraxinus angustifolia; Populus nigra* Target species for conservation in the GCU: **Fraxinus angustifolia, Populus nigra Unit type: Protective forest area (soil, water, timber line, etc.) Target species: Fraxinus angustifolia Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 100% Estimated number of reproducing trees (interval): 50 - 499 Status of long-term viable regeneration: Continuous Management Population management: Minimum intervention allowed Predominant silvicultural system: No silviculture Target species: Populus nigra Status of the target species in the GCU: - Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochtonous Population share (%): 20% Estimated number of reproducing trees (interval): 15 - 49 Status of long-term viable regeneration: Requires management intervention Management Population management: Conservation through active intervention carried out Predominant silvicultural system: No silviculture**

National gene conservation unit number: PRT00001
Date of collection of the field data entered: 2002
Date of the most recent visit: 2007

Location

Unit country: Portugal
Unit province or state: Portugal
Unit department or county: Alentejo
Unit municipality: Alter do Chäo
Unit local name: Coudelaria de Alter
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 190 - 230
Unit surface area [ha]: 10.1
Coordinates (Public coordinates): Latitude (Decimal):39.2200 | Longitude (Decimal): -7.6822

Soil: Dystric Regosols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Warm temperate.
Environmental zone:Warm temperate and xeric.
Aridity index: 0.620

Species

All tree species reported in the unit: Fraxinus angustifolia; Populus nigra
Target species for conservation in the GCU: Fraxinus angustifolia, Populus nigra

Unit type: Protective forest area (soil, water, timber line, etc.)

Target species: Fraxinus angustifolia
Status of the target species in the GCU: -
Category of the target species in the GCU: In situ
Origin of the target species in the GCU : Autochtonous
Population share (%): 100%
Estimated number of reproducing trees (interval): 50 - 499
Status of long-term viable regeneration: Continuous

Management
Population management: Minimum intervention allowed
Predominant silvicultural system: No silviculture

Target species: Populus nigra
Status of the target species in the GCU: -
Category of the target species in the GCU: In situ
Origin of the target species in the GCU : Autochtonous
Population share (%): 20%
Estimated number of reproducing trees (interval): 15 - 49
Status of long-term viable regeneration: Requires management intervention

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: No silviculture