English Dictionary

dbh

noun

(botany) Initialism of diameter at breast height, a standard method of expressing the diameter of the trunk or bole of a standing tree. The diameter is measured at the height of an adult's breast.

The dbh of the tree is measured to determine its age.

意味（1）

(botany) Initialism of diameter at breast height, a standard method of expressing the diameter of the trunk or bole of a standing tree. The diameter is measured at the height of an adult's breast.

We again found that the number of tree species in a sample of stems 20 cm dbh or larger is greater in selectively logged forest 8 years after the harvest than in nearby unlogged forest (t test, d.f.