Analysis investigates cull percentages in sugar maple trees, suggesting improved estimation methods for northern hardwoods.
Cull is often very heavy in northern hardwood stands and is difficult to estimate. Defect in 600 sample sugar maple trees was analyzed. Using this as a basis, a method for determining cull percent in standing trees has been worked out which appears to have application to northern hardwoods in general.
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Zillgitt et al. (1948) studied this question.
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