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Phenological Observation (Betula pendula Roth.) in Urbocoenosis of Chernivtsi City (Ukraine)
Organization(s):Chernivtsi Regional Ecology and Nature Center for Youth
Country:Ukraine
Student(s):Rakochyi Vitiazslav
Hresko Mykhailo
Tamazlykar Anna-
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:TETIANA CHEBAN
Contributors:Khlus L.M.
Cheban T.
Report Type(s):International Virtual Science Symposium Report
Protocols:Green-Up / Green-Down
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Date Submitted:04/10/2019
• It is established that the length of sheets of healthy birches under the conditions of the city of Chernivtsi depends on the exposure of the place of growth. The largest indicator is registered in birches growing on the area of the northwest exposure. The average length of the leaf on the birch trees, in which the process of drying was observed, is smaller than in healthy trees, regardless of their location and area exposure. The terms of passing the main phenophase to the birch leaves show a clear dependence on the microclimatic conditions and do not depend on the state of the tree. There was no relationship between the microclimatic conditions and the nature and the terms of the passage of autumn phenophase with the leaves of the fallen birch. The partial crown depletion also does not affect the mentioned indicators.