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Table 5 Comparison of recently cruised stands using old strata system and current strata system

From: The use of airborne laser scanning to develop a pixel-based stratification for a verified carbon offset project

2009 Data (2008 Plot Data Is Grown to 2009) 2010 Data
Strata Stand Ha Year Cruised Plots BA (m 2 /ha) TPH (> 5 cm) BF per ha C (Mg/ha - no dead) # of 2010 Strata BA (m 2 /ha) TPH (> 5 cm) BF per ha C (Mg/ha - no dead)
DR1M 2 53 2009 4 47.3 739.8 35,031 174.5 26 45.7 824.8 28,938 157.6
GX2D 115 7 2009 4 25.4 339.7 6,169 123.6 16 38.2 709.6 17,104 132.8
MH2D 171 35 2008 4 32.7 1,255.6 32,564 127.8 23 44.0 822.0 24,558 150.9
DR2D 239 13 2008 4 19.0 219.0 26,084 93.7 23 42.0 695.5 28,769 145.5
DR3D 265 54 2008 4 43.2 883.1 55,819 217.8 29 44.6 737.9 32,592 154.5
CH2M 269 183 2008 20 43.1 1,404.7 35,222 156.2 30 48.5 839.4 34,417 169.5
CH2M 270 138 2008 16 47.5 1,646.9 28,088 170.3 30 48.3 842.1 34,136 168.2
CH2M 271 131 2008 16 40.0 1,745.1 22,248 140.2 29 46.7 808.5 32,671 163.1
  1. The estimates of stand level TPH, Board Feet (BF)/ha, and Metric Tons of Carbon (MgC)/ha showed no statistically significant difference between the past stand delineation estimate and aggregating the current stratification system to the old stand boundaries except for basal area (paired t-test p-values: BA = 0.034, TPH = 0.23, BF/ha = 0.81, metric tons Carbon/ha = 0.7).
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