Hydrophobicity in the Soils of Findley Lake, Washington
Abstract:This paper relates selected soil chemical properties to hydrophobicity or nonwetting of some subalpine soils. Hydrophobicity can be beneficial for increasing water yields, or detrimental for reducing overland flow. Water drop penetration time (WDPT) was used to measure soil hydrophobicity. Soil horizons varied from non-hydrophobic (WDPT < 1 sec) to strongly hydrophobic (WDPT > 10,000 sec). Significant correlation exists between percent carbon and hydrophobicity for an exponential regression model. Pyrophosphate extractable carbon percent and the soil humic-fulvic acid ratio (H/F) were also correlated with WDPT. Forest Sci. 22:54-58.
Document Type: Journal Article
Affiliations: Professor of Soil Science, University of Washington, Seattle, WA 98195
Publication date: March 1, 1976
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