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. 2019 Oct 18;10:1185. doi: 10.3389/fpls.2019.01185

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Copyright © 2019 Bailey

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Fraction of the instantaneous flux due the top 10% of all leaves (i.e., fraction of flux contained in the 90^th percentile of leaves) for fluxes of (A) absorbed photon flux Q_10%, (B) transpiration rate E_10%, and (C) net photosynthesis A_10%. (For example, a Q_10% value of 0.75 would mean that only 10% of the leaves were responsible for 75% of the total absorbed PAR for the whole tree/canopy.