National gene conservation unit number: Saint-Mesmin
Date of collection of the field data entered: 2008
Date of the most recent visit: 2000

Location

Unit country: France
Unit province or state: CENTRE-VAL-DE-LOIRE
Unit department or county: LOIRET
Unit municipality: SAINT-HILAIRE-SAINT-MESMIN
Unit local name: R.N. de Saint-Mesmin
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 100 - 100
Unit surface area [ha]: 263
Coordinates (Public coordinates): Latitude (Decimal):47.8643 | Longitude (Decimal): 1.7793

Soil: Calcaric Fluvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 0.879

Species

All tree species reported in the unit: Populus nigra; Salix alba; Fraxinus excelsior; Ulmus laevis; Ulmus minor
Target species for conservation in the GCU: Populus nigra

Unit type: Biodiversity conservation (habitats AND/or species)

Target species: Populus nigra
Status of the target species in the GCU: Pending
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): 500 - 4999
Status of long-term viable regeneration: Sporadic

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