Increment borings reveal high productivity of spruce and fir in timberlands, suggesting effective management plans for vast areas.
During July and August 1937, in connection with a reconnaissance survey of the extensive timberland ownings of the St. Regis Paper Company in Coos County, N. H., opportunity was afforded to make increment borings on spruce and fir in the areas logged fifty years ago by the Van Dykes and twenty years ago by the Connecticut Valley Lumber Company. The results of the calculations show high productive capacity for softwood and give a preliminary basis for a management plan for the 200,000 acres involved.
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A. B. Recknagel (1937) studied this question.
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