Effects of Stand and Site Variables on the Lumber Value of Uneven-aged Loblolly Pine Stands
نویسندگان
چکیده
منابع مشابه
Determinants of tree quality and lumber value in natural uneven-aged southern pine stands
An ordered-probit model was developed to predict tree grade from treeand stand-level variables, some of which could be changed by management. Applied to uneven-aged mixed loblolly (Pinus tuedu L.) shortleaf pine (Pinus echinatu Mill .) stands, the model showed that the grade of pine trees was highly correlated with tree diameter, tree height, and stand basal area, in non-linear fashion. In addi...
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Log grade, number of knots, and log volume of the first two logs, as well as form class of the butt log, were compared across three broad sawtimber categories among even-aged plantations, even-aged natural stands, and uneven-aged natural stayMs of loblolly pine (Pinus taeda L.) in Ashley County, AR. Trees from unevenaged stands had butt logs of better log grade than even-aged plantations, parti...
متن کاملYield Comparisons from Even-Aged and Uneven-Aged Loblolly-Shortleaf Pine Stands
Empirical yields for a 36year management period are presented for seven long-term studies on similar sites in loblolly-shortleaf pine (Pinus taeda L.-P. 1 The authors thank George Switzer of Mississippi State University, Terry Clason of Louisiana State Uni\'ersity, and Dick Kennedy of Georgia-Pacific Corporation for reviewing the manuscript. Special thanks also to Georgia-Pacific Corporation an...
متن کاملPrescribed fire effects on structure in uneven-aged stands of loblolly and shortleaf pines
Key words Structure was assessed in uneven-aged stands of loblolly (Pinus taeda) and shortleaf pine (P. echinata) that were subjected to prescribed winter burns on cycles of 0, 3, 6, and 9 years. Vegetation assessments were made in late summer of 1990, 10 years after a single hardwood control treatment (basal injection of nonpine woody plants >2.5 cm in ground-line diameter with TordorP 101 R);...
متن کاملDoes Prescribed Burning Have a Place in Regenerating Uneven-Aged Loblolly-Shortleaf Pine Stands?
Before the 1981 growing season, a s tudy was instal led in southeastern Arkansas to examine the eflects of three dormant-season burn intervals ( low, moderate, and highfrequency) and an unburned treatment on natural regeneration in uneven-aged stands of loblolly and shortleaf pines (Pinus taeda and P. echinata, respectively) . Merchantable pine basal areas were maintained by harvest ing on a 5 ...
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ژورنال
عنوان ژورنال: Southern Journal of Applied Forestry
سال: 2000
ISSN: 0148-4419,1938-3754
DOI: 10.1093/sjaf/24.4.202