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Wood density

Formal name:  stem wood density
Local identifier:  TOP284
Related Term:  wood specific gravity
Definition:  the ratio of the mass (PATO:mass) of a unit wood (PO:secondary xylem) of the stem (PO:stem) assessed after drying to its volume (PATO:volume) assessed without drying.
Formal Unit:  mass unit / volume unit

Reference:  Eric Garnier, Jens Kattge, Stefan Klotz, Ingolf Kühn, Ulrike Stahl