Cottonwood Plantation Growth Through 20 Years

Roger M. Krinard; Robert L. Johnson

doi:10.2737/SO-RP-212

Treesearch

Cottonwood Plantation Growth Through 20 Years

Informally Refereed

Authors:

Roger M. Krinard, Robert L. Johnson

Year:

1984

Type:

Research Paper

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SO-RP-212

Source:

Res. Pap. SO-212. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 11 p.

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Download (PDF 343 KB): https://research.fs.usda.gov/download/treesearch/825.pdf

Abstract

At age 20 survival of unthinned cottonwood (Populusdeltoides Bartr. ex Marsh.) planted on medium-textured soil at spacings of 4 by 9, 8 by 9, 12 by 12, and 16 by 18 feet was 10, 17, 30, and 62 percent, and average diameters were 10.6, 11.8, 12.6, and 13.7 inches, respectively. Depending on spacing and diameter threshold, -cubic volume mean annual increment peaked at ages 7 to 13. Thinning compared to no thinning reduced cubic volume production. Thinned or unthinned plots of 16- by l&foot spacing and heaviest thinning at 12 by 12 spacing produced from 340 to 400 board feet per acre per year (Doyle) during the 20 years in trees 2 12.0 inches to a lo-inch top. Other spacing-treatment combinations provided from 110 to 230 board feet per acre per year.

Keywords

Populus deltoides, stand development, thinning

Citation

Krinard, Roger M.; Johnson, Robert L. 1984. Cottonwood Plantation Growth Through 20 Years. Res. Pap. SO-212. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 11 p.