Point sampling

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POINT SAMPLING VS.FIXED-AREA PLOT SAMPLINGFixed plotsamplingPoint samplingSamplingbased onFrequency of occurrenceTree sizeExpansionfactorSame for all treesVaries by treePPFPPS
POINT SAMPLING - MAIN IDEAS1. Basal Area Factor (BAF)How much BA does each sampled tree represent?2. Plot Radius FactorHow far away can a tree be and still be sampled?3. Determining the BAF of an unknown prism.4. Calculations from samples:Basal area per acreTrees per acreVolume per acre
Page 2 and 3: POINT SAMPLINGA method of sampling
Page 4 and 5: POINT SAMPLINGEach tree has agiven
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 24 and 25: VF METHOD - EXAMPLEMake a table wit
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

Point sampling

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