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Properties of humic acid fractions in forest humus layers in British Columbia


Properties of humic acid fractions in forest humus layers in British Columbia



Canadian Journal of Soil Science 55(3): 381-393



ISSN/ISBN: 0008-4271

DOI: 10.4141/cjss75-045

Thirty-eight chemical and spectral characteristics were determined on humic acid (HA) fractions extracted successively with cold and hot 0.1 N NaOH from F and H horizons under six types of vegetative cover. Some HA properties were significantly affected by extract, with the hot alkali extraction yielding less aromatic and more immature HA fractions. HA properties were relatively unaffected by horizon of origin.

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Accession: 000471758

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