Live crown

{{More citations needed|date=November 2024}}

The live crown is the top part of a tree, the part that has green leaves (as opposed to the bare trunk, bare branches, and dead leaves). The ratio of the size of a tree's live crown to its total height is used in estimating its health and its level of competition with neighboring trees.{{Cite book |last=DeYoung |first=Joan |title=Forest Measurements |date=2016 |publisher=Open Oregon Educational Resources |others=Illustrated by Adrianna Sutton |isbn=978-1-63635-053-0 |chapter=5.3 Live Crown Ratio |chapter-url=https://openoregon.pressbooks.pub/forestmeasurements/chapter/5-4-live-crown-ratio/}} This is referred to as the Live Crown Ratio (LCR).