BACKGROUND AND AIMS Physiological data suggest that autumn leaf colours of deciduous trees are adaptations to environmental stress. Recently, the evolution of autumn colouration has been linked to tree condition and defence. Most current hypotheses presume that autumn colours vary between tree individuals. This study was designed to test if within-tree variation should be taken into account in ...

Abstract By mitigating the negative effects of urbanization, urban trees contribute significantly to well-being citizens. However, themselves are also exposed stress that can influence tree condition and tree-herbivore interactions. Maple species ( Acer spp.) among most commonly planted in areas throughout North America Europe. Among these species, field, sycamore, Norway maple native Europe, b...

--Girdling roots are examined and described on streetside Norway maple trees (Acer platanoides L.) in Ann Arbor, Michigan. Treatments consisting of cutting girdling roots, fertilizing and pruning foliage were evaluated after two years and found to be of no benefit to girdled trees. From August 1977 to August 1979 this study was made on 410 Norway maple trees (Acer platanoides L.) planted betwee...

The article provides an analysis of changes in the areas Norway maple stands forests Republic Tatarstan from 1944 to 2019. According accounting data forest fund as 01.01.2020, area occupied by is 29.3 thousand hectares (2.5 % area), including 5.0 young growth 1st and 2nd age class, 21.4 middle-aged trees, 1.9 ripening trees 1.0 ripe trees. A reliable relationship was revealed between a decrease...