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Volume 12, issue 22
Biogeosciences, 12, 6669–6685, 2015
https://doi.org/10.5194/bg-12-6669-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Freshwater ecosystems in changing permafrost landscapes

Biogeosciences, 12, 6669–6685, 2015
https://doi.org/10.5194/bg-12-6669-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 24 Nov 2015

Research article | 24 Nov 2015

Controls on dissolved organic matter (DOM) degradation in a headwater stream: the influence of photochemical and hydrological conditions in determining light-limitation or substrate-limitation of photo-degradation

R. M. Cory et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (Editor review) (12 Oct 2015) by Warwick F. Vincent
AR by Rose Cory on behalf of the Authors (28 Oct 2015)  Author's response    Manuscript
ED: Publish as is (01 Nov 2015) by Warwick F. Vincent
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Short summary
This study investigates how sunlight, dissolved organic matter (DOM) concentration and composition, and hydrology interact to control DOM degradation in headwater streams. In Imnavait Creek, a shallow, low-relief stream in the Arctic, DOM degradation by sunlight was limited by light under all conditions. Study results were used to synthesize controls on DOM degradation by sunlight for a river reach, expressed as a function of light attenuation and water residence times.
This study investigates how sunlight, dissolved organic matter (DOM) concentration and...
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