Monitoring seasonal and diurnal changes in photosynthetic pigments with automated PRI and NDVI sensors

Gamon, J. A.; Kovalchuck, O.; Wong, C. Y. S.; Harris, A.; Garrity, S. R.

doi:https://doi.org/10.5194/bg-12-4149-2015

Articles | Volume 12, issue 13

https://doi.org/10.5194/bg-12-4149-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

EUROSPEC – spectral sampling tools for vegetation biophysical...

https://doi.org/10.5194/bg-12-4149-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 13

Research article

|

14 Jul 2015

Research article |

| 14 Jul 2015

Monitoring seasonal and diurnal changes in photosynthetic pigments with automated PRI and NDVI sensors

J. A. Gamon, O. Kovalchuck, C. Y. S. Wong, A. Harris, and S. R. Garrity

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Final revised paper (published on 14 Jul 2015)
Preprint (discussion started on 10 Feb 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C588: 'Gamon et al.', Albert Porcar-Castell, 11 Mar 2015
- AC C2161: 'Response to Comments by Albert Porcar-Castell', John Gamon, 15 May 2015
RC C1386: 'Comments on “Monitoring seasonal and diurnal changes in photosynthetic pigments with automated PRI and NDVI sensors” by Gamon et al.', Anonymous Referee #2, 17 Apr 2015
- AC C2158: 'Response to Reviewer 2', John Gamon, 15 May 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by John Gamon on behalf of the Authors (29 May 2015) Author's response Manuscript

ED: Publish as is (16 Jun 2015) by Enrico Tomelleri

AR by John Gamon on behalf of the Authors (21 Jun 2015)

Short summary

NDVI and PRI sensors (SRS, Decagon Inc.) exhibited complementary responses during spring photosynthetic activation in evergreen and deciduous stands. In evergreens, PRI was most strongly influenced by changing chlorophyll:carotenoid pool sizes over the several weeks of the study, while it was most affected by xanthophyll cycle pigment activity at the diurnal timescale. These automated PRI and NDVI sensors offer new ways to explore environmental and physiological constraints on photosynthesis.