Trends in the transformation of plant ontogenesis under global climate warming
Laen...
Kuupäev
2022
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian Academic Agricultural Society
Abstrakt
Observations of the process of ontogenesis in a group of
woody plants and forest grass in the phytocenoses of the Ukrainian Polesie
of Sumy region with their division into boreal and nemoral species were
done. Found that in the last two decades, nemoral plant species begin
vegetation earlier and pass the first phases of the ontogenetic cycle faster
than boreal species. Changes in plant ontogenesis, in turn, lead to changes
in the population characteristics of plant species: the number of individuals
in the population, the size and configuration of the population field and the
ontogenetic and vital spectra of populations changed. There has been a
tendency to regular changes in the ontogenetic spectra of both nemoral and
boreal plant species, but their nature was different. In nemoral plant
species, the proportion of juvenile and immature individuals in the
ontogenetic spectra increased and populations acquired the character of
invasive, reflecting the process of progressive strengthening of their
position in phytocenoses. In populations of boreal species, on the contrary,
the ageing process accelerated – the proportion of old generative, senile
and subsenile individuals increased.
Kirjeldus
Saabunud / Received 02.05.2022 ; Aktsepteeritud / Accepted 16.07.2022 ; Avaldatud veebis / Published online 16.07.2022 ; Vastutav autor / Corresponding author: Sergey Butenko ; serg101983serg@gmail.com
Märksõnad
climate change, forest ecosystems, phytocenoses, ontogenetic spectrum, plant populations, articles