Dear Authors:
Thank you for sending your responses to referee comments.
Both referees evaluated positively your manuscript, especially in scientific significance and presentation quality. I studied all comments and responses and conclude that the revised manuscript is expected to be satisfactory after major revision. At this stage, I would like to recommend you reinforce discussion. Namely, both referees put critical comments on substrate or precursor of monoterpene. I agree with you about the fact that it ‘can vary largely’, but it is desirable to say something on the potential impact of substrate availability on monoterpene emission. That may apply to the impact of ‘tree-by-tree variation’. I appreciate your consideration.

Dear Authors:

Thank you for providing the revised manuscript. I confirmed you made attempts to reinforce discussion on substrate availability in pages 12 and 13. As you stated, this study would have a novelty to relate monoterpene biosynthesis and field-observed emission, potentially improving our predictability of BVOC emission. I have not received additional requests from the referees, and I conclude that the manuscript is acceptable for publication after a technical correction.

Technical point:
In Figures 2–6, you used capitals (e.g., A, B, C) in the panels and text, but used lowercases (e.g., a, b, c) in the captions. Can you standardize them?