02048nam 2200541I 450 991070357460332120150424122901.0(CKB)5470000002431953(OCoLC)907956510(EXLCZ)99547000000243195320150424d2013 ua 0engurcn||||a||||txtrdacontentstirdacontentcrirdacontentcrdamediacrrdacarrierNet change in forest density, 1873-2001 using historical maps to monitor long-term forest trends /Greg C. Liknes ; Mark D. Nelson ; and Daniel J. KaisershotNewtown Square, PA :U.S. Forest Service,[2013]1 online resource (ii unnumbered pages, 12 pages, 2 unnumbered pages) illustrations, color mapsResearch map NRS ;4Title from title screen (viewed April 24, 2015)."Northern Research Station"--Page [14]."Manuscript received for publication May 2011"--Page [ii]."May 2013."Includes bibliographical references (page 12).Net change in forest density, 1873-2001 Forest monitoringUnited StatesMapsForests and forestryUnited StatesForecastingForests and forestryUnited StatesMapsEcological mappingUnited StatesMaps.lcgftForest monitoringForests and forestryForecasting.Forests and forestryEcological mappingLiknes Greg C.1389450Nelson Mark D(Research forester),Kaisershot Daniel J.United States.Forest Service,United States.Forest Service.Northern Research Station.GPOGPOBOOK9910703574603321Net change in forest density, 1873-20013441011UNINA