Особенности фенологических реакций древесных растений Южного берега Крыма на изменения климата

Abstract

A long-term data of flowering dates in the nutwood (Corylus avellana L.), rattlertree (Populus alba L.), pipe tree (Syringa vulgaris L.), bird cherry (Padus avium Mill.), and small-leaved lime (Tilia cordata Mill.) for the period 1937–2017 in the central part Southern coast of the Crimea were studied in order to assess the trends. Differences in phenological responses trees to homogeneous climate changes were revealed. The possibility of using chronobiological analysis for assessment of cyclic changes of sensitivity, for vulnerability analysis and temporal variability properties of trees were shown. If for mid-spring and summer flowering of pipe tree and smallleaved lime occur 3–6 days earlier over the last 20-year period 1998–2017, for winter flowering of nutwood this phenophase occur later. This fact can be interpreted as a manifestation of the by the need to pass successfully the periods of organic rest and vegetation.