Saligna Eucalyptus Growth in a 15-Year-Old Spacing Study in Hawaii

摘要

A spacing study was started in 1961 to test the effects of four different spacings on the growth and development of saligna eucalyptus (Eucalyptus saligna) trees in Hawaii. Spacings tested were 8 by 8 feet (2.4 m), 10 by 10 feet (3.0 m), 12 by 12 feet (3.7 m), and 14 by 14 feet (4.3 m). Plot trees were measured at ages 1,2,5,10, and 15 years. Measurements included d.b.h., diameter base height, total height, height to a 4- and 9-inch (10.2- and 22.9-cm) top (outside bark), and height to live crown. Board feet and cubic foot volumes were determined. After 15 years, trees 140 to 150 feet tall were common in all spacings.