Point sampling

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VF METHOD - EXAMPLEMake a table with the collected data & information•BAF=10• Compute NUMBER of trees per acreTally & #logsDBH 1 2 3 Total BA / tree TF in ix TF i10 20 7 0 27 0.545 18.35 49512 8 25 7 4014 0 10 5 1516 0 4 7 11Total
VF METHOD - EXAMPLETrees per acreRecall:⎛⎜ ∑ (ni)(TFiTPA= ⎝ np) ⎞⎟⎠We know:Σ n i x TF i =n p = 12So, from previous slide:TPA=TPA=⎛ 495+....... ⎞⎜ ⎟= ..........⎝ 12 ⎠⎛ 27×18.35+40×12.74+15×9.35+11×7.16⎞⎜⎟=⎝12⎠102
Page 2 and 3: POINT SAMPLINGA method of sampling
Page 4 and 5: POINT SAMPLINGEach tree has agiven
Page 6 and 7: POINT SAMPLING VS.FIXED-AREA PLOT S
Page 8 and 9: POINT SAMPLING - BAFBasal area fact
Page 10: POINT SAMPLING - PRFPlot Radius Fac
Page 13: Therefore each tree tallied represe
Page 16 and 17: POINT SAMPLING-COMPUTE TREES PER AC
Page 18 and 19: POINT SAMPLING-COMPUTE TREES PER AC
Page 20 and 21: VOLUME - VF METHODPoint cruise:Meas
Page 22 and 23: VF METHOD - EXAMPLEFirst, compute v
Page 26 and 27: TotalMake a table with the collecte
Page 28 and 29: POINT SAMPLING - VOLUME EXAMPLEMake
Page 30 and 31: POINT SAMPLING - VOLUME EXAMPLEVolu
Page 32 and 33: • International ¼ in rule• For
Page 34 and 35: DBH Plot 2LogsBA/ TF Per acre …1
Page 36 and 37: DBH Trees/ac BA/ac Volume/acP1 P2 P
Page 38 and 39: POINT SAMPLING METHODOLOGYTwo commo

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