Formation of non-wettable soils...involves heat transfer mechanism

Leonardo F. Debano

Treesearch

Formation of non-wettable soils...involves heat transfer mechanism

Informally Refereed

Authors:

Leonardo F. Debano

Year:

1966

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-132. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p

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Download (PDF 2.12 MB): https://research.fs.usda.gov/download/treesearch/37895.pdf

Abstract

After a wiIdfire, some brushland soils in southern California have been found to include a non-wettable layer. This formation may be the result of hydrophobic material volatilizing and later condensing. In burning experiments, hydrophobic substances from ceanothus litter and non-wettable soil were moved downward into an underlying wettable sand by temperature gradients. The wettable sand acquired a marked resistance to wetting after the burning treatment.

Citation

Debano, Leonardo F. 1966. Formation of non-wettable soils...involves heat transfer mechanism. Res. Note PSW-RN-132. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p