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HEIGHT/DIAMETER RATIO [3 records]

Record 1 2009-05-15

English

Subject field(s)
  • Silviculture
CONT

Absolute form-factor : The ratio of any two overbark diameters(or girths) of a tree stem....(1) Of chief significance with coniferales.(2) Main types in use... are artificial form-quotient-mid-diameter/diameter at breast height; normal form-quotient(=true form-quotient)-diameter(or girth) ratios at selected %'s of tree height, particularly 50% and 10%; absolute form-quotient-diameter(or girth) at half the tree height above breast height/diameter(or girth) at breast height.

Key term(s)
  • absolute form quotient

French

Domaine(s)
  • Sylviculture

Spanish

Campo(s) temático(s)
  • Silvicultura
Save record 1

Record 2 2001-05-01

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Silviculture
  • Forestry Operations
DEF

The ratio of tree height to diameter at breast height, which provides a measure of tree taper and, indirectly, of past stand management, density, and stand stability.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Sylviculture
  • Exploitation forestière
DEF

Équation mathématique qui permet de déterminer, pour un territoire donné, la hauteur totale d'un arbre (en mètres) à partir de son diamètre (en centimètres) mesuré à 1 m 30 du niveau le plus haut du sol.

OBS

La relation hauteur/diamètre s'exprime de la façon suivante : Hauteur (m) = A + (B x classe de diamètre (cm)) + (C x classe de diamètre au carré) où A = l'ordonnée à l'origine B = le coefficient d'effet linéaire C = le coefficient d'effet quadratique.

Key term(s)
  • rapport hauteur-diamètre

Spanish

Save record 2

Record 3 1987-01-01

English

Subject field(s)
  • Silviculture
DEF

Mean ratio of crown projection area diameter to breast height diameter of stand trees.

French

Domaine(s)
  • Sylviculture
DEF

Valeur du rapport du diamètre de projection au sol du houppier au diamètre à 1,30 m des arbres.

Spanish

Save record 3

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