Pacific Southwest

Title: Early effects of spacing on loblolly pine in Hawaii

Author: Whitesell, Craig D.

Date: 1970

Source: Res. Note PSW-RN-223. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

Station ID: RN-PSW-223

Description: The optimum interval at which to plant loblolly pine (Pinus taeda L.) is being studied on the island of Maui, Hawaii. Four spacings are being tried: 6, 8, 10, and 12 feet. Measurements of trial plots in 1968-7 years after plots were set up-show that (a) survival rate exceeded 95 percent; (b) height growth averaged about 30 feet in all spacings; (c) average d.b.h. increases ranged from 5.3 inches at the 6-foot spacing to 7.8 inches in the 12-foot spacing; and (d) basal area ranged from 95 sq. ft. per acre in the 12-foot spacing to 193 sq. ft. per acre in the 6-foot spacing.

Keywords: Pinus taeda, Hawaii, planting density, growth response

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Citation

Whitesell, Craig D.   1970.  Early effects of spacing on loblolly pine in Hawaii.   Res. Note PSW-RN-223. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p.