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lntroduction ________________ ____________
Literature Cited _____________________________
Method to estimate clearcut effect _____ 57
angle AVIEH carriage position clearcut effect contour falling corridor width cross-slope yarding crown DATA/UNITS Douglas-fir downhill yarding dropline EXCURSION AT TP fall line fan-shaped settings Figure ground clearance ground slope haulback line Hawkins Creek Hawkins Logging Study Hawkins Sale Hawkins Timber Sale height Horned Owl incense-cedar KEY lN landing 11 LATERAL EXCURSlON lateral inhaul lateral yarding layout leave trees LOAD BOTH SlDES LOAD LATERAL EXCURSION load point located log turn logger logging plan MBF per acre Mendocino National Forest mixed conifer stands N/REQ operations percent POlNT removed reserve stand reserve trees residual timber residual trees result rigged rub tree Sheep Creek Silvicultural simulator Skyline Cable skyline corridor skyline logging skyline position skyline road SlDES CARD span stand damage steep stocked understory streamside stumps Subdivision tailhold tall tower terrain point TOWER TO LOAD tree canopy understory survival uphill white fir yarder