This paper presents the structure of well-preserved, mature stands of seed
origin and young stands that followed either after planned regeneration or
spontaneously in the understory reinitiation stage, in monodominant sessile
oak forests (Quercetum petraeae Cer. et Jov. 1953.) from two
subassociations, tilietosum and typicum, in the territory of ?Djerdap?
National Park. The presentation of mature stands is based on the data
collected from experimental plots in 1992, in the period characterized by
the mass occurrence of sessile oak decline in this area, and across Europe.
The stands were around 150 years old in 1992, and consisted only of sessile
oak in the tree layer. The canopy closure of the stands was 0.7-0.8, with a
large standing volume. There were no major differences between the stands
regarding social classes, stem quality, crown development and crown
condition. The presentation of young stands is based on the data collected
in 2017 from a permanent experimental plot, as well as on the data from
other authors. The structure of young stands indicates that different
silvicultural measures need to be planned during the regeneration stage for
different subassociations of the monodominant sessile oak forest in order to
reach sufficient natural regeneration of sessile oak.
Determinants of drought effects on crown condition and their relationship with depletion of carbon reserves in a Mediterranean holm oak forest
