Abstract
DURING an investigation into the physical properties of humic acids, humic products were extracted from mixtures of papyrus and various additives such as different types of clays, which had been decomposing in natural tropical swamps for periods of up to 20 months, and from core samples collected from deep papyrus and sphagnum peat deposits (down to 20 m), by which the time-scale for the period of decomposition could be extended to durations exceeding 15,000 years.
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References
Deuel, H., Dubach, P., Mehta, N. C., and Bach, R., Schweiz. Z. Hydrol., 22, 111 (1960).
Kononowa, M. M., Die Humusstoffe des Bodens (Deutscher Verlag der Wissenschaften, Berlin, 1958).
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VISSER, S. Production of Humic Substances in Decomposing Peat and Compost Samples. Nature 196, 1211–1212 (1962). https://doi.org/10.1038/1961211b0
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DOI: https://doi.org/10.1038/1961211b0
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