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Natural Resource Biometrics Send Email Course Topics Examples Software Memo Format Report Format Schedules of Assignments Course Objectives Important University Policies Class Time and Place Prerequisites Blackboard This page is the general description of the course and suggested expectations for both the student and the expectations of the teacher. |
Basal AreaFormated version of this page for printingBasal area per tree is the cross-sectional area of a tree at breast height. It can be calculated from Diameter at breast height (DBH) by the following formula:   where:
DBH is the diameter at breast height.  is the constant 3.1415.Basal area per acre is the sum of all the basal area per tree in the acre. Basal area per acre or hectare is a standard measure of the size-density relationship in a stand.  where:
BAi is the Basal area per tree for the ith tree Wi is the sample expansion factor weight. 
Figure 1. An illustration of the basal area per acre. The basal area per tree is the cross-sectional area of each tree at breast height(the black ellipses). Basal area per acre would be the sum of these cross-sectional areas for all tree in an acre. |
Last Updated: August 7, 2008