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Fifteen Years of Cottonwood Plantation Growth and Yield

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At age 15, unthinned cottonwood (Populus deltoides Bartr.) planted at four spacings ranged from 7.5 to 12.1 inches average d.b.h. Initial spacings were 4' x 9', 8' x 9', 12' x 12', and 16' x 18' on Commerce-Convent soils. Mean annual cubic-foot volume increment by spacings in trees ≥5.0 inches d.b.h. peaked from year 9 to 13 and ranged from 277 to 313 cubic feet per acre per year. Yields from three thinning treatments did not exceed unthinned mean annual increments for a given spacing. Board-foot mean annual increment in trees ≥12.0 inches d.b.h. to a 10-inch top ranged from 60 to 370 board feet per acre for unthinned plots and from 100 to 420 board feet per acre for thinned plots when averaged over spacings.

Document Type: Journal Article

Affiliations: Principal Silviculturist, Southern Hardwoods Laboratory, maintained at Stoneville, Mississippi

Publication date: 1980-11-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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