@article{Kappler2001Dynam-7508,
  year={2001},
  doi={10.1016/S0146-6380(00)00160-1},
  title={Dynamics in composition and size-class distribution of humic substances in profundal sediments of Lake Constance},
  number={1},
  volume={32},
  issn={0146-6380},
  journal={Organic Geochemistry},
  pages={3--10},
  author={Kappler, Andreas and Ji, Rong and Schink, Bernhard and Brune, Andreas}
}

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    <dc:contributor>Ji, Rong</dc:contributor>
    <dc:creator>Schink, Bernhard</dc:creator>
    <dc:contributor>Kappler, Andreas</dc:contributor>
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    <dcterms:title>Dynamics in composition and size-class distribution of humic substances in profundal sediments of Lake Constance</dcterms:title>
    <dcterms:abstract xml:lang="eng">Organic matter from profundal lake sediments was fractionated and analyzed with high depth resolution, and the size-class distribution of humic substances was determined by gel-permeation chromatography. Together with a depth- dependent increase of the thermal stability of the organic matter and an increasing C/N atomic ratio of the humic acids, the size-distribution patterns of di erent fractions indicated an increasing degree of humification with depth. The main stabilization processes occurred in the surface layer (0±2 cm depth), which is clearly distinguished from the deeper sediment. The depth profiles also indicated that humification in lake sediments consists of simultaneous degradation and polymerization processes.</dcterms:abstract>
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    <dc:creator>Kappler, Andreas</dc:creator>
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    <dcterms:issued>2001</dcterms:issued>
    <dcterms:bibliographicCitation>First publ. in: Organic Geochemistry 32 (2001), 1, pp. 3-10</dcterms:bibliographicCitation>
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    <dc:contributor>Schink, Bernhard</dc:contributor>
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