National gene conservation unit number: MP/2/31309/05
Date of collection of the field data entered: 2013
Date of the most recent visit: 2019

Location

Unit country: Poland
Unit province or state: Woj. mazowieckie
Unit department or county: Powiat ciechanowski
Unit municipality: Gmina Opinogóra Górna
Unit local name: N. Ciechanów 1-01-20c,21c,22d,25cf
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 170 - 170
Unit surface area [ha]: 17.41
Coordinates (Public coordinates): Latitude (Decimal):52.9906 | Longitude (Decimal): 20.7297

Soil: Stagnic Phaeozems

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and dry.
Aridity index: 0.921

Species

All tree species reported in the unit: Quercus robur; Alnus glutinosa; Betula pendula; Carpinus betulus
Target species for conservation in the GCU: Alnus glutinosa

Unit type: Seed stand

Target species: Alnus glutinosa
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 (%): 95%
Estimated number of reproducing trees (interval): 500 - 4999
Status of long-term viable regeneration: -

Management
Population management: Conservation through active intervention carried out
Predominant silvicultural system: -