01612oam 2200445 450 991071373960332120200826095033.0(CKB)5470000002504289(OCoLC)1190753898(EXLCZ)99547000000250428920200826j202007 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierGuide to variable-density thinning using skips and gaps /Leslie C. Brodie and Constance A. HarringtonPortland, OR :U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station,July 2020.1 online resource (37 pages) color illustrations, color mapsGeneral technical report PNW ;GTR-989"July 2020."Includes bibliographical references (pages 32-36).Forest managementWashington (State)Douglas firSpacingWashington (State)Douglas firThinningWashington (State)Douglas firWashington (State)GrowthForest managementDouglas firSpacingDouglas firThinningDouglas firGrowth.Brodie Leslie C.1408844Harrington Constance A.Pacific Northwest Research Station (Portland, Or.),GPOGPOGPOBOOK9910713739603321Guide to variable-density thinning using skips and gaps3493756UNINA