A Note on Within-Tree Variation of Specific Gravity in Sweetgum (Liquidambar Styraciflua L.)

Andrew W. Ezell, Prentiss E. Schilling


Both radial and vertical variations of specific gravity within trees for sweetgum were analyzed. Upland and bottomland sites were studied. Six different sites (three upland and three bottomland) were selected; three dominant or codominant trees per site were chosen. In general, specific gravity was found to be a highly variable property of sweetgum wood. It fluctuates with both height and year of deposition, but the patterns were not consistent either within or among trees.


Specific gravity variation;radial variation;height variation;site influence on specific gravity

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