Carbon dioxide content of the interstitial water in the sediment of Grane Langs, a Danish Lobelia lake

Wium-Andersen, S.; Andersen, J.M.

Limnology and Oceanography 17(6): 943-947


ISSN/ISBN: 0024-3590
DOI: 10.4319/lo.1972.17.6.0943
Accession: 068500774

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The CO2 content of the interstitial water of a Danish Lobelia lake was between 1 and 5 mmole liter−1. Measurements showed that the sediment must liberate CO2 to the lake water in amounts sufficient for optimal photosynthesis of Lobelia. Zonation of Isoëtes, Littorella, and Lobelia in the lake cannot be correlated with the CO2 content of the sediment.