Articles | Volume 16, issue 13
https://doi.org/10.5194/bg-16-2733-2019
https://doi.org/10.5194/bg-16-2733-2019
Research article
 | 
12 Jul 2019
Research article |  | 12 Jul 2019

Composition and cycling of dissolved organic matter from tropical peatlands of coastal Sarawak, Borneo, revealed by fluorescence spectroscopy and parallel factor analysis

Yongli Zhou, Patrick Martin, and Moritz Müller

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Short summary
We found that peatlands in coastal Sarawak, Borneo, export extremely humified organic matter, which dominates the riverine organic matter pool and conservatively mixes with seawater, while the freshly produced fraction is low and stable in concentration at all salinities. We estimated that terrigenous fractions, which showed high photolability, still account for 20 % of the coastal dissolved organic carbon pool, implying the importance of peat-derived organic matter in the coastal carbon cycle.
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