Dispersion of kaolinite by dissolved organic matter from Douglas-fir roots

Philip B. Durgin; Jesse G. Chaney

doi:10.4141/cjss84-045

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Dispersion of kaolinite by dissolved organic matter from Douglas-fir roots

Informally Refereed

Authors:

Philip B. Durgin, Jesse G. Chaney

Year:

1984

Type:

Miscellaneous Publication

Station:

Pacific Southwest Research Station

DOI:

https://doi.org/10.4141/cjss84-045

Source:

Canadian Journal of Soil Science 64(3): 445-455.

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Abstract

The organic constituents of water extracts from Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) roots that cause kaolinite dispersion were investigated. The dissolved organic matter was fractionated according to molecular size and chemical characteristics into acids, neutrals, and bases of the hydrophilic and hydrophobic groups.

Keywords

PSW4351, fulvic acid, specific adsorption, carboxylic acid, fractionation

Citation

Durgin, Philip B.; Chaney, Jesse G. 1984. Dispersion of kaolinite by dissolved organic matter from Douglas-fir roots. Canadian Journal of Soil Science 64(3): 445-455.