Soils of a Mangrove Forest Composed ofRhizophora mucronataandBruguiera gymnorrhizafrom Ishigaki Island, Japan
Open Access
- 1 September 1985
- journal article
- research article
- Published by Taylor & Francis in Soil Science and Plant Nutrition
- Vol. 31 (3) , 437-448
- https://doi.org/10.1080/00380768.1985.10557451
Abstract
Elementary composition and absorption spectra of humic acids (HAs) and fulvic acids (FAs) obtained from 4 Canadian and 2 Japanese soils were determined, and the relationships between these 2 properties were discussed. In this study, FA refers to the PVP adsorbed, i.e. coloured substances in what has been designated, in previous reports, as FA. In 3 soil samples, FA was divided into the acid (pH 1.0)-precipitable FA1 and non-precipitable FA2 fractions.Keywords
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