National gene conservation unit number: MP/2/31883/05
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 węgrowski
Unit municipality: Gmina Grębków
Unit local name: N. Siedlce 1-01-309g
Ownership of the unit: Public
Unit elevation [m a.s.l.]: 166 - 166
Unit surface area [ha]: 6.94
Coordinates (Public coordinates): Latitude (Decimal):52.2489 | Longitude (Decimal): 21.9178

Soil: Stagnic Luvisols

Climate

Mean monthly temperature and mean monthly precipitation²

Climatic zone: Cool temperate.
Environmental zone:Cool temperate and dry.
Aridity index: 0.874

Species

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

Unit type: Seed stand

Target species: Tilia cordata
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 (%): 50%
Estimated number of reproducing trees (interval): 50 - 499
Status of long-term viable regeneration: -

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