Structural Diversity Results

This result group contains results that describe the Structural diversity of the trees in a treatment unit.

Variable name	Unit	Description
Even-aged Class	code	Even-aged type. Unknown: No information EvenAged: If at least 80 % of the volume are within a 20-year age range UnEvenAged: Otherwise. Note that the definition differs from the one used in the Swedish NFI.
Tree Size Diversity (Gini Coefficient)		Tree size diversity (Gini coefficient).
Tree Size Diversity Class (Hugin def.)		Tree size diversity class according the Hugin system definition. Trees are grouped into four diameter classes, where the class width = (dbhmax-dbbmin)/4. If the number of trees in class[i] > class[i+1], the diameter class distribution is classified as InverseJShaped, otherwise Homogeneous.