Articles | Volume 16, issue 19
https://doi.org/10.5194/bg-16-3869-2019
https://doi.org/10.5194/bg-16-3869-2019
Research article
 | 
08 Oct 2019
Research article |  | 08 Oct 2019

Strong correspondence between nitrogen isotope composition of foliage and chlorin across a rainfall gradient: implications for paleo-reconstruction of the nitrogen cycle

Sara K. E. Goulden, Naohiko Ohkouchi, Katherine H. Freeman, Yoshito Chikaraishi, Nanako O. Ogawa, Hisami Suga, Oliver Chadwick, and Benjamin Z. Houlton

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ED: Publish subject to minor revisions (review by editor) (18 Jul 2019) by Marcel van der Meer
AR by Sara Goulden on behalf of the Authors (01 Aug 2019)  Author's response    Manuscript
ED: Publish as is (13 Aug 2019) by Marcel van der Meer
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Short summary
We investigate whether soil organic compounds preserve information about nitrogen availability to plants. We isolate chlorophyll degradation products in leaves, litter, and soil and explore possible species and climate effects on preservation and interpretation. We find that compound-specific nitrogen isotope measurements in soil have potential as a new tool to reconstruct changes in nitrogen cycling on a landscape over time, avoiding issues that have limited other proxies.
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