Changes in the humus composition of volcanic ash soils by heating at various temperatures
Open Access
- 1 March 1993
- journal article
- research article
- Published by Taylor & Francis in Soil Science and Plant Nutrition
- Vol. 39 (1) , 189-192
- https://doi.org/10.1080/00380768.1993.10416988
Abstract
Volcanic ash soils in Japan are characterized by the accumulation of large amounts of black humus, and the black color is due to the presence of A type humic acids with a high degree of humification (Kumada 1987). Although there is still no systematic understanding of humus formation in volcanic ash soils, Shindo et al. (1986a, b, c) and Shindo (1991) suggested that charred grassland plants were one of the possible sources of A type humic acids based on several findings.Keywords
This publication has 6 references indexed in Scilit:
- Elementary composition, humus composition, and decomposition in soil of charred grassland plantsSoil Science and Plant Nutrition, 1991
- Comparison of Humic Acids from Charred Residues of Susuki (Eulalia,Miscanthus sinensisA.) and from the a Horizons of Volcanic Ash SoilsSoil Science and Plant Nutrition, 1986
- Humus Composition of Charred Plant ResiduesSoil Science and Plant Nutrition, 1986
- A POSSIBLE SOURCE OF HUMIC ACIDS IN VOLCANIC ASH SOILS IN JAPAN—CHARRED RESIDUE OF Miscanthus sinensisSoil Science, 1986
- Changes in Soil Organic Matter and Nitrogen Fertility during the Slash-and-Burn and Cropping Phases in Experimental Shifting CultivationSoil Science and Plant Nutrition, 1985
- Humus composition of mountain soils in Central Japan with special reference to the distribution of P type humic acidSoil Science and Plant Nutrition, 1967