Harr, R. Dennis. 1987. Myths and misconceptions about forest hydrologic systems and cumulative effects. In: Callaham, Robert Z.; DeVries, Johannes J., tech. coords. Proceedings of the California watershed management conference; 1986 November 18-20; West Sacramento, CA. Rep. 11. Berkeley, CA: Wildland Resources Center, Division of Agriculture and Natural Resources, University of California: 137-141.
Review of foredt planning documents andcontact with watershed specialists and otherforest land mAnagera in the Paoifio Northwest hasrevealed several myths or miaconceptiona aboutforest watershed management. These are partly theresult of pressures oreated by the level ofplanning required by legislation and by the questfor simple procedures to prediot cumulativeeffects of mannaement activities on soil and waterreaourooa. Myths and misconceptions discussedinclude these: (1) simplicity can be willed onthe forest hydrologic system,'(2) soil compactionof 12 percent of total watershed area constitutesa threshold for detrimental changes in etreamflow,
desynohronizaticn of flows by logging-induceddiversity of anowmelt oonditiona will always bebeneficial to soil and water resources, and
wet-mantle runoff is not affected by
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