crown reduction

A form of pruning in which the extent of the crown is decreased without (primarily) decreasing its density, to reduce loading, balance the crown, mitigate a nuisance etc.

BS 3998 (2010),
crown,
nuisance (common law),
pollard,
pruning,
pruning (fruit trees),
retrenchment pruning,
topping

This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
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