National gene conservation unit number: NL.SI.3.4.03-01
Date of collection of the field data entered: 2024
Date of the most recent visit: 2024

Location

Unit country: Netherlands
Unit province or state: Gelderland
Unit department or county: -
Unit municipality: Berg en Dal
Unit local name: Millingen a/d Rijn, Millingerwaard
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 10 - 10
Unit surface area [ha]: 13
Coordinates (Public coordinates): Latitude (Decimal):51.8786 | Longitude (Decimal): 6.0050

Soil: Calcaric Cambisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and moist.
Aridity index: 1.249

Species

All tree species reported in the unit: Alnus glutinosa; Crataegus monogyna; Populus nigra; Prunus spinosa; Quercus robur; Salix alba; Sambucus nigra; Ulmus laevis
Target species for conservation in the GCU: Populus nigra, Crataegus monogyna

Unit type: Seed stand

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 : Autochthonous
Population share (%): 90%
Estimated number of reproducing trees (interval): 51 - 500
Status of long-term viable regeneration: Continuous

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

Target species: Crataegus monogyna
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 : Autochthonous
Population share (%): 60%
Estimated number of reproducing trees (interval): 51 - 500
Status of long-term viable regeneration: Sporadic

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