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Culture and Density Effects on Tree Quality in Midrotation Non-Thinned Loblolly Pine Plantations

1
Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
2
Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA
*
Author to whom correspondence should be addressed.
Forests 2018, 9(2), 82; https://doi.org/10.3390/f9020082
Received: 26 December 2017 / Revised: 25 January 2018 / Accepted: 7 February 2018 / Published: 9 February 2018
(This article belongs to the Section Forest Ecology and Management)
Six non-thinned loblolly pine (Pinus taeda L.) culture × density study sites in the Piedmont and Upper Coastal Plain of the Southeast U.S. were used to examine the effects of two cultural intensities and three planting densities on solid wood potential as well as the proportion and position of product-defining defects (forks, crooks, broken tops). A tree quality index (TQI) was used to grade stems for solid wood potential. The results show that an operational management regime exhibited a higher proportion of trees with solid wood product potential than did a very intensive management regime. Trees subject to operational management exhibited product-defining defects higher on the stem; however, the proportion of stems with defects was not significantly different from the intensive management. Planting densities of 741, 1482, and 2223 trees per hectare (TPH) exhibited a relatively narrow range of the proportion of trees with solid wood product potential that were not significantly different. Density did not have a significant effect on the heights of the product-defining defects. These results show that management intensity and less so planting density, affect the solid wood product potential indicators evaluated and should be considered when making management decisions. View Full-Text
Keywords: silviculture; solid wood product; product-defining defect silviculture; solid wood product; product-defining defect
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MDPI and ACS Style

Green, P.C.; Bullock, B.P.; Kane, M.B. Culture and Density Effects on Tree Quality in Midrotation Non-Thinned Loblolly Pine Plantations. Forests 2018, 9, 82. https://doi.org/10.3390/f9020082

AMA Style

Green PC, Bullock BP, Kane MB. Culture and Density Effects on Tree Quality in Midrotation Non-Thinned Loblolly Pine Plantations. Forests. 2018; 9(2):82. https://doi.org/10.3390/f9020082

Chicago/Turabian Style

Green, P. C., Bronson P. Bullock, and Michael B. Kane 2018. "Culture and Density Effects on Tree Quality in Midrotation Non-Thinned Loblolly Pine Plantations" Forests 9, no. 2: 82. https://doi.org/10.3390/f9020082

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