Understanding the effects of early degradation on isotopic tracers: implications for sediment source attribution using compound-specific isotope analysis (CSIA)

Hirave, Pranav; Wiesenberg, Guido L. B.; Birkholz, Axel; Alewell, Christine

doi:https://doi.org/10.5194/bg-17-2169-2020

Articles | Volume 17, issue 8

https://doi.org/10.5194/bg-17-2169-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-2169-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 8

Research article

|

20 Apr 2020

Research article |

| 20 Apr 2020

Understanding the effects of early degradation on isotopic tracers: implications for sediment source attribution using compound-specific isotope analysis (CSIA)

Pranav Hirave, Guido L. B. Wiesenberg, Axel Birkholz, and Christine Alewell

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Final revised paper (published on 20 Apr 2020)
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Preprint (discussion started on 04 Jun 2019)
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Interactive discussion

Status: closed

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

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RC1: 'Understanding the effects of early degradation on isotopic tracers: implications for sediment source attribution using compound specific isotope analysis (CSIA)', Anonymous Referee #1, 15 Jul 2019
- AC1: 'Short reply to the referee comment', Pranav Hirave, 30 Jul 2019
RC2: 'comments on the manuscript', Anonymous Referee #2, 06 Nov 2019
- AC2: 'Reply to the RC2', Pranav Hirave, 03 Dec 2019

Peer-review completion

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

ED: Reconsider after major revisions (13 Dec 2019) by Aninda Mazumdar

AR by Pranav Hirave on behalf of the Authors (21 Jan 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (23 Jan 2020) by Aninda Mazumdar

RR by Anonymous Referee #1 (16 Mar 2020)

ED: Publish as is (18 Mar 2020) by Aninda Mazumdar

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Short summary

Sediment input into water bodies is a prominent threat to freshwater ecosystems. We tested the stability of tracers employed in freshwater sediment tracing based on compound-specific isotope analysis during early degradation in soil. While bulk δ¹³C values showed no stability, δ¹³C values of plant-derived fatty acids and n-alkanes were stably transferred to the soil without soil particle size dependency after an early degradation in organic horizons, thus indicating their suitability as tracers.