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An evaluation of techniques for sampling forest tree nutrient content 2. sampling for stem nutrient content

An evaluation of techniques for sampling forest tree nutrient content 2. sampling for stem nutrient content

Forest Science 28(3): 481-487

ISSN/ISBN: 0015-749X

The stem portion of the tree represents the nutrient capital removed in conventional harvesting systems. It also represents the nutrient capital immobilized in a stand. Accurate estimates of stem nutrient content are required to evaluate the forest nutrient cycle and harvesting impacts. This investigation suggests that a single stem disc [Pinus resinosa], when used to estimate the nutrient content of a stem, does not estimate this content within .+-. 10% of the actual stem content. More than 5 discs, taken over the length of the stem, are needed to meet a 10% allowable error criterion.

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