. Annual inventory report for Pennsylvania's forests [electronic resource] : results from the first three years. Forest surveys Pennsylvania Statistics; Forests and forestry Pennsylvania Statistics. - 100000. 1955 1965 1978 Year 1989 2002 Figure 15.—Volume of sawtimber on timberland by inventory date, Pennsylvania, 1955, 1965, 1978, 1989, and 2002 (all differences between bars are statistically significant at the 67-percent level). 16000 ~ 14000 a> - a 12000 a r- !£ = 10000 ° Z 8000 m 75 I I 6000 ll. Please note that these images are extracted from scanned page images that may have been dig
. Annual inventory report for Pennsylvania's forests [electronic resource] : results from the first three years. Forest surveys Pennsylvania Statistics; Forests and forestry Pennsylvania Statistics. - 100000. 1955 1965 1978 Year 1989 2002 Figure 15.—Volume of sawtimber on timberland by inventory date, Pennsylvania, 1955, 1965, 1978, 1989, and 2002 (all differences between bars are statistically significant at the 67-percent level). 16000 ~ 14000 a> - a 12000 a r- !£ = 10000 ° Z 8000 m 75 I I 6000 ll. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McWilliams, William H; United States. Forest Service. Northeastern Research Station. Newtown Square, PA : U. S. Dept. of Agriculture, Forest Service, Northeastern Research Station
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