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Hydrophobicity in the Soils of Findley Lake, Washington

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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.

Keywords: Forest soils; nonwetting soils; subalpine soils; water drop penetration time

Document Type: Journal Article

Affiliations: Professor of Soil Science, University of Washington, Seattle, WA 98195

Publication date: 1976-03-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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