VOLUME TABLE for NATURAL SWEETGUM in ALABAMA - Auburn ...

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Equations 5 and 8 had y-intercepts which were hot significantly different from zero at a - 0.05. Consequently, these regressions were recomputed so that the line passed through the origin. These two final equations (Eq. 9 and 10) were used for calculation of the cubic foot volumes in Tables 2 and 3. The predicted values from equations 9 and 10 yield cubic foot volume estimates that are plus or minus approximately 1.5 cu. ft. per tree with 95 per cent confidence. [61
TABLE 2. TOTAL CUBIC-FOOT VOLUMES (OUTSIDE BARK) FOR NATURAL SWEETGUM IN ALABAMA D.b.h. Total tree height (feet) Di- (inch- amees) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 ter dist. (cubic feet) 2 0.14 0.18 0.23 0.27 0.32 1 3 0.31 0.41 0.51 0.61 0.71 0.82 0.92 5 4 0.73 0.91 1.09 1.27 1.45 1.63 1.82 2.00 5 5 1.42 1.70 1.99 2.27 2.55 2.84 3.12 3.40 3.69 8 6 2.45 2.86 3.27 3.68 4.09 4.49 4.90 5.31 5.72 6.13 10 7 4.45 5.01 5.56 6.12 6.67 7.23 7.79 8.34 8.90 9.45 12 8 7.26 7,99 8.72 9.44 10.17 10.90 11.62 12.35 13.08 12 9 9.19 10.11 11.03 11.95 12.87 13.79 14.71 15.63 16.55 17.47 22 10 12.48 13.62 14.75 15.89 17.02 18.16 19.2920.43 21.56 22.70 12 11 16.48 17.85 19.23 20.60 21.97 23.35 24.72 26.09 27.47 7 12 19.61 21.25 22.88 24.52 26.15 27.78 29.42 31.05 32.69 34.32 3 13 23.02 24.94 26.85 28.77 30.69 32.61 34.53 36.44 38.36 40.28 42.20 0 14 31.14 33.37 35.59 37.82 40.0 42.27 44.49 46.72 48.94 2 15 40.86 43.41 45.97 48.52 51.07 53.63 56.18 0 Height 2 0 1 4 3 3 6 4 8 8 9 12 10 15 7 6 0 2 0 0 'Does not include a six inch stump. Block shows extent of observed data. Confidence limits per tree are ± 1.5 cu. ft. with 95% confidence.
Page 1 and 2: CIRCULAR 204 ARL17 APRIL 1973 VOLUM
Page 3 and 4: Volume Table for Natural Sweetgum i
Page 5: Volume Equation Development Smalian

VOLUME TABLE for NATURAL SWEETGUM in ALABAMA - Auburn ...

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