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Title: Soil wettability and wetting agents . . . our current knowledge of the problem
Author: DeBano, Leonard F.; Osborn, Joseph F.; Krammes, Jay S.; Letey, John, Jr.
Source: Res. Paper PSW-RP-43. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U.S. Department of Agriculture; 13 p
Station ID: RP-PSW-043
Description: Soils that resist wetting are a widespread phenomenon on chaparral areas of southern California watersheds. On burned watersheds, non-wettable soils markedly reduce moisture movement during both evaporation and infiltration. The reduced infiltration rate probably contributes significantly to the high debris production from the watersheds. Factors involved in the formation of non-wettable soils include vegetation and soil temperatures during fire. Wetting agents applied to burned areas apparently help retard debris movement and enhance vegetation establishment.
Key Words: soil formation; fire effects; soil erosion control; soil wettability; wetting agents; saturation resistance; infiltration rate; hydrophobic soil
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DeBano, Leonard F.; Osborn, Joseph F.; Krammes, Jay S.; Letey, John, Jr. 1967. Soil wettability and wetting agents . . . our current knowledge of the problem Res. Paper PSW-RP-43. Berkeley, CA: Pacific Southwest Forest & Range Experiment Station, Forest Service, U.S. Department of Agriculture; 13 p.
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