# Live crown

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The **live crown** is the top part of a [tree](/source/Tree), the part that has green [leaves](/source/Leaves) (as opposed to the bare [trunk](/source/Trunk_(botany)), bare [branches](/source/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.[1] This is referred to as the Live Crown Ratio (LCR).[1]

## References

1. ^ [***a***](#cite_ref-:0_1-0) [***b***](#cite_ref-:0_1-1) DeYoung, Joan (2016). ["5.3 Live Crown Ratio"](https://openoregon.pressbooks.pub/forestmeasurements/chapter/5-4-live-crown-ratio/). *Forest Measurements*. Illustrated by Adrianna Sutton. Open Oregon Educational Resources. [ISBN](/source/ISBN_(identifier)) [978-1-63635-053-0](https://en.wikipedia.org/wiki/Special:BookSources/978-1-63635-053-0).

- [Trees portal](https://en.wikipedia.org/wiki/Portal:Trees)

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