Oxygen dynamics and plant-sediment interactions in isoetid ...
Oxygen dynamics and plant-sediment interactions in isoetid ...
Oxygen dynamics and plant-sediment interactions in isoetid ...
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Content9 Abstract11 Dansk resumé13 Introduction18 Aim of thesis19 Thesis summary25 Conclusions <strong>and</strong> Implications27 Paper 1 <strong>Oxygen</strong>, carbon <strong>and</strong> iron <strong>dynamics</strong> <strong>in</strong> natural <strong>and</strong> organically enriched<strong>sediment</strong>s from oligotrophic lakes <strong>in</strong>habited by <strong>isoetid</strong> vegetation39 Paper 2 High sensitivity of Lobelia dortmanna to <strong>sediment</strong> oxygen depletion follow<strong>in</strong>gorganic enrichment53 Paper 3 Higher gas permeability of leaves provides greater tolerance of Littorellauniflora than Lobelia dortmanna to <strong>sediment</strong> organic enrichment69 Paper 4 Organic enrichment of <strong>sediment</strong>s decreases arbuscular mycorrhizal fungicolonization of the aquatic macrophytes Lobelia dortmanna <strong>and</strong> Littorellauniflora85 Paper 5 Outst<strong>and</strong><strong>in</strong>g Lobelia dortmanna <strong>in</strong> iron armor91 Paper 6 Planterødders overlevelse i v<strong>and</strong>dækket bund99 Acknowledgements