| Country of the unit : | Luxembourg | 
						| Unit number: | LUX00021 | 
						| National gene conservation unit number: | 1001 | 
						| Province or state: | Bon-Pays | 
						| Department or county: |  | 
						| Municipality: | Dudelange | 
						| Local name : | Haard (RFI) | 
						| Latitude : | 49°28'5.3703"N | 
						| Longitude : | 6°3'28.8016"E | 
						| Restriction in making the geographical coordinates publically available: | 0 | 
						| Datum: |  | 
						| Polygon coordinates (if available): |  | 
						| Minimum elevation (m): | 310 | 
						| Maximum elevation (m): | 430 | 
						| Surface area of the unit (ha): | 157 | 
						| Ownership of the unit : | Public | 
						| 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: | 2004 | 
						| Year of the most recent visit: | 2023 | 
						| Remarks on specific soil characteristics: | Dogger (Bajocien) | 
						| Remarks on other specific characteristics of the unit: |  | 
						| All tree species growing in the unit: | Quercus robur; Betula pendula; Acer pseudoplatanus; Fagus sylvatica; Acer platanoides; Fraxinus excelsior; Prunus avium; Carpinus betulus | 
						| Target species: | Fraxinus excelsior | 
						| National population unit number if existing: | 1001 | 
						| Year of establishment of the GCU for the species: | 2004 | 
						| Year of the most recent visit: | 2009 | 
						| Status of the target tree population regarding the EUFORGEN common action plans.: | Not included | 
						| 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: | No intervention allowed | 
						| Main reason for carrying out gene conservation for this species: | To conserve specific adaptive and/or phenotypic traits in marginal or scattered tree populations which are often relatively small | 
						| Total number of reproducing trees per unit: | 50 - 499 | 
						| Sex ratio, if appropriate: | Even sex ratio | 
						| Status of long-term viable regeneration : | Continuous | 
						| 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 (%): | 100 | 
						| Remarks on the population: |  |