Forest Ecosystem Monitoring Cooperative(802) 656-0683femc@uvm.eduwww.uvm.edu/femc705 Spear StreetSouth BurlingtonVermont05403United States of AmericaVermont Agency of Natural Resources Vermont Department of Forests, Parks and RecreationleadBirch Condition SurveyThe purpose of this survey was to evaluate birch dieback and decline and to collect information on possible contributing factors. Paper birch stands defoliated by birch leaf miners and/or birch skeletonizers were monitored from 1993 to 2002. This survey mainly focused on paper birch stands but defoliated yellow birch stands were also evaluated. Sites were selected on state lands or stands with cooperative landowners, where no future logging was planned. Tree health assessments were conducted every-other year.Birch Condition SurveyWilmotSandraSchultzBarbaracommunity dynamicsforest ecologytree mortalitywhite birchyellow birchBirch Condition Survey1993-08-012002-08-01The data associated with the Birch Condition Survey.Evaluating birch dieback and decline and to collect information on possible contributing factors. Z1140_2384_DZV9MEVMC.1140.2384mySQLMatthew Gorton (2017) Birch Condition Survey. FEMC. Available online at: /femc/data/archive/project/Birch_condition_survey/dataset/birch-condition-survey-1/femc/data/archive/project/Birch_condition_survey/dataset/birch-condition-survey-1%_DIE_%_DIE_Percent crown dieback recorded in 5% incrementsint%_TRNS_%_TRNS_intASPECT_(AZ)ASPECT_(AZ)Take in degrees azimuth from point center lookingintBTLS_BTLS_Bz__B__BORERBz__B__BORERCNKR/LES_CNKR/LES_CONKSCONKSCRN__BRK_CRN__BRK_CRN__CLS_CRN__CLS_int1open grown2dominant3codominant4intermediate5overtopped(suppressed)CRN__DENS_CRN__DENS_intCRN__VIG_CRN__VIG_NAMP ratingsint1healthy; <10% dieback2light decline; 10-25% dieback3moderate decline, 26-50%4severe decline; >50% dieback5standing dead6dead tree on ground or removedDAM__FOL_DAM__FOL_DATEDATEtextDBHDBHintDISC__FOL_DISC__FOL_textDRAINAGEDRAINAGEtextELEVATIONELEVATIONintLOCATIONLOCATIONtextOBLIQ_OBLIQ_OUTCROPS_(Y/N)OUTCROPS_(Y/N)textPOINT_#POINT_#intREMARKSREMARKStextSAP-SCKRSAP-SCKRSEAMSSEAMSSLOPE_(%)SLOPE_(%)Take percent slope across point center by standing 50 feet uphill from center and sighting on second person 50 feet downhill. intSPP_Tree Speciesint212balsam fir97red spruce129eastern white pine135260hemlock261eastern hemlock313boxelder315striped maple316red maple318319mountain maple325345361371yelow birch372sweet birch375paper birch391American hornbeam; musclewood531American beech541white ash601butternut633675701eastern hophornbeam; ironwood746quaking aspen761pin cherry833northern red oak855935American mountain-ash3187371637573758STEM_BRK_STEM_BRK_STEM_WDS_STEM_WDS_intTREE_#TREE_#Number trees consecutively, beginning with the first tree to the right of north. intVT_ATLAS_GRID_EVT_ATLAS_GRID_EintVT_ATLAS_GRID_NVT_ATLAS_GRID_NtextYEARS_DEFOLIATEDYEARS_DEFOLIATEDtext