Abstract
Logarithmic stem volume equations based on tree height, diameter at breast height (dbh), and on both variables were determined for Juniperus procera Hocht. ex. Endl. Data were measured in Menagesha National Park (20 km west of Addis Ababa, altitude 2500 m, rainfall 1100 mm year −1), a remnant of the original Ethiopian highland forest, on 75 sample trees which varied between 5 and 125 cm dbh and 4 and 50 m height. The relative standard error of the volume estimate was smallest, 10–12%, with two-variable models. The best model for trees of over 7 cm dbh was determined as ln ( v) = −2.741 + 1.922 × ln ( d) + 0.902 × ln ( h), where stem volume v is in cubic diameters, decimeters, diameter d is in centimeters and height h is in meters.
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