Simulating Timber Management in Lake States ForestsNorth Central Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1981 - Forest management - 25 pages |
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85 SQUARE FEET/ACRE Agriculture Forest Service BA is less basal area BASAW basswood black ash black spruce Central Forest Experiment class to remove CLEARCUT AGE codes CRITICAL VALUES Department of Agriculture favoring white spruce feet/acre in seed Forest Experiment Station highest crown ratio ICOMP inches d.b.h. jack pine Leave largest d.b.h. less than BAMIN Manage for timber management guides management subsystem Manager's handbook marking rule Minnesota non-white spruce North Central Forest northern hardwood northern red oak northern white-cedar Objectives and Assumptions paper birch particularly large products prescription products if possible red maple red pine REMOVAL CUT Remove elms Remove large d.b.h. Remove mature aspen Remove rough Remove small d.b.h. Remove trees rotten trees rough and rotten seed cutting favor shelterwood cut leaving species groups spruce until BA SQUARE FEET/ACRE BA stand is considered sugar maple THIN TO BAMIN tree list trees and thin TREES/ACRE U.S. Department white ash white pine