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Assessing visual soil disturbance on eight commercially thinned sites in northeastern Washington.Author(s): Jeffrey S. Tepp
Source: Res. Note PNW-RN-535. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
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DescriptionRandomly located transects were used to assess visual soil disturbance on eight units in the Fritz Timber Sale, Colville National Forest. Equipment trails, mostly designated, accounted for about 25 percent of the total area. The cut-to-length harvester and forwarder combination with 130-foot trail spacing produced the least visual disturbance. Leaving slash on trails appeared to reduce displacement and rutting. Rehabilitation of trails, landings, and temporary roads could move seven of the eight units toward compliance with regional standards for detrimental disturbance. Validation of these regional standards is needed to determine the effects of soil disturbance on soil productive capacity.
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CitationTepp, Jeffrey S. 2002. Assessing visual soil disturbance on eight commercially thinned sites in northeastern Washington. Res. Note PNW-RN-535. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p
KeywordsSoil disturbance, soil monitoring, harvesting effects, thinning, skyline, Pacific Northwest, assessment
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