Glossary – D

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

DBH – The diameter of a tree stem at breast height (4.5 feet) above the ground. DIB (d.i.b.)– Diameter inside bark. Diameter of a log at its small end, measured inside the bark.

Deciduous tree – A tree that loses its leaves during the winter.

Defect – The portion of a tree or log that is unusable for the intended product.
Examples are decay, crook, and excessive limbiness.

Diameter – See DBH or DIB.

Diameter class – A tree stem diameter category that may include 1 or more inches of diameter.

Direct seeding – See seeding.

Dominant – See crown classification.

Duff – Undecomposed organic matter (such as leaves, twigs, moss, pieces of bark and wood) that litters a forest floor.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z