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Inventory data of six urban tree species from seven cities across Germany were used to model regional variation of height growth, allometric scaling, and slenderness over a wide range of size and age using a quantile regression approach. Variation within and between species and cities was large. Height did not reach an asymptote but declined at higher ages, presumably because of reduction cuts. Allometric scaling and slenderness varied with wind climate, modulus of elasticity, and coefficient of drag.

Our data do not support the use of a threshold value of slenderness in tree risk assessment.

Further reading

Rust S (2013) Analysis of regional variation of height growth and slenderness in populations of six urban tree species using a quantile regression approach. Urban Forestry & Urban Greening 13: 336–343. doi:10.1016/j.ufug.2013.12.003


Steffen Rust Avatar Steffen Rust Baumbiologie, Baumkontrolle, Baumpflege.

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Baumkontrolle

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