Differences in some chemical properties of innerwood and outerwood from five silviculturally different loblolly pine stands

Todd F. Shupe; Chung-Yun Hse; Elvin T. Choong; Leslie H. Groom

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Differences in some chemical properties of innerwood and outerwood from five silviculturally different loblolly pine stands

Informally Refereed

Authors:

Todd F. Shupe, Chung-Yun Hse, Elvin T. Choong, Leslie H. Groom

Year:

1997

Type:

Scientific Journal

Station:

Southern Research Station

Source:

Journal of Wood and Fiber Science 29(1):91-97

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Abstract

The influence of five different silviculrural management strategies on the chemical composition (extractives, Klason lignin, holocellulose, and alpha-cellulose) of loblolly pine outerwood and innerwood was investigated. Stands that were managed in a plantation setting using growth-accelerating treatments showed higher extractive contents than the other stands. Wood from the juvenile area (innerwood) yielded more extractives than outerwood (mature wood). Holocellulose and alpha-cellulose were not significantly affected by silvicultural practice but were found in a much grearer concentration in outerwood than innerwood due to the greater density in the outerwood region. Klason lignin was inversely related to holocellulose.

Keywords

Alpha-cellulose, hot-water extractives, alcohol-benzene extractives, ether extractives, Klason lignin, holocellulose, silvicultural treatments, wood type

Citation

Shupe, Todd F.; Hse, Chung-Yun; Choong, Elvin T.; Groom, Leslie H. 1997. Differences in some chemical properties of innerwood and outerwood from five silviculturally different loblolly pine stands. Journal of Wood and Fiber Science 29(1):91-97