Growth and Yield Following Four Reproduction Cutting Methods in Loblolly-Shortleaf Pine Stands--A Case Study

1982 ◽  
Vol 6 (2) ◽  
pp. 66-74 ◽  
Author(s):  
James B. Baker ◽  
Paul A. Murphy
Keyword(s):  
Pinus Taeda ◽  
Growth And Yield ◽  
Shortleaf Pine ◽  
Advantages And Disadvantages ◽  
Land Owners ◽  
Second Growth ◽  
Pine Regeneration ◽  
Volume Production ◽  
Pinus Taeda L

Abstract Four reproduction cutting methods employed on an average site (S.I. = 85 to 90 feet at 50 years) in second-growth loblolly-shortleaf pine (Pinus taeda L.--P. echinata Mill.) in south Arkansas provided adequate pine regeneration to establish or maintain well-stocked stands. During the 36-year study period, heavy seed-tree and diameter-limit cutting methods produced significantly more cubic-foot volume than selection and clearcutting, while clearcutting resulted in significantly less board-foot (Doyle) volume. Since many trees on the clearcut areas are just now reaching sawlog size, board-foot volume production among all treatments will probably equalize as time goes on. Advantages and disadvantages of the four cutting methods for large landholders and private nonindustrial land-owners are discussed.

scholarly journals Natural Loblolly and Shortleaf Pine Productivity Through 53 Years of Management under Four Reproduction Cutting Methods

2001 ◽  
Vol 25 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Michael D. Cain ◽  
Michael G. Shelton
Keyword(s):  
Pinus Taeda ◽  
Coastal Plain ◽  
Total Production ◽  
Shortleaf Pine ◽  
Forest Landowners ◽  
Advantages And Disadvantages ◽  
Volume Production ◽  
Pinus Taeda L ◽  
Productive Method

Abstract A study was initiated in 1943 to evaluate the long-term productivity of loblolly (Pinus taeda L.) and shortleaf pines (P. echinata Mill.) when managed under four reproduction cutting methods—clearcut, heavy seedtree, diameter-limit, and selection—on the Upper Coastal Plain of southeastern Arkansas. Early volume production reflected retention of residual pines, and the clearcut was the least productive method through the first 36 yr. After 53 yr, there were no statistically significant (P = 0.07) differences among cutting methods in sawlog volume production, which averaged 3,800 ft3/ac. In terms of sawlog volume (bd ft/ac, Doyle scale), total production on clearcut, seedtree, and selection plots exceeded (P < 0.01) that on diameter-limit plots by 37%, but there were no differences in sawlog volume production among the other cutting methods. Results suggest that forest landowners should consider the advantages and disadvantages of each cutting method when planning their long-term objectives. South. J. Appl. For. 25(1):7–16.

Managing for High-Value Poles in the Loblolly-Shortleaf Belt

1977 ◽  
Vol 1 (1) ◽  
pp. 11-15
Author(s):  
James D. Burton
Keyword(s):  
Pinus Taeda ◽  
Stand Density ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Second Growth ◽  
Pinus Taeda L

Abstract Results of this study provide the practicing forester with guidelines on pole management. Beginning at age 20, second-growth loblolly (Pinus taeda L.) and shortleaf pine (Pinus echinata Mill.) stands were managed under various thinning regimes for 25 years to determine how pole yield is affected by stand density and method of thinning. Thinning initially from above produced more poles while thinning initially from below resulted in longer poles and higher pole values. Profitable numbers of poles were grown under a range of residual stand densities from 55 to 130 square feet per acre. Sweep, the defect most commonly limiting pole length and merchantability, tended to diminish as trees grew older.

Uneven-Aged Management in the Loblolly-Shortleaf Pine Type

1978 ◽  
Vol 2 (3) ◽  
pp. 78-82 ◽  
Author(s):  
Hamlin L. Williston
Keyword(s):  
Pinus Taeda ◽  
Annual Growth ◽  
Shortleaf Pine ◽  
Advantages And Disadvantages ◽  
Pinus Taeda L

Abstract The advantages and disadvantages of uneven-aged management in the loblolly-shortleaf pine type (Pinus taeda L. and P. echinata Mill.) are discussed. This evaluation concludes that uneven-aged management is feasible for woodlands of small landowners. Where 4,000 board feet (International ¼-inch rule) per acre were left following a cyclic cut, the annual growth was more than 400 board feet per acre in trees 11.6 inches d.b.h. and larger.

Growth and Yield of Planted Loblolly and Shortleaf Pines in a North Mississippi Creek Bottom

1985 ◽  
Vol 9 (4) ◽  
pp. 247-249 ◽  
Author(s):  
H. L. Williston
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Site Index ◽  
Growth And Yield ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Pinus Taeda L ◽  
A Site

Abstract Unthinned loblolly pine (Pinus taeda L.) planted near Abbeville, Mississippi in a creek bottom with a site index of 122 had a yield of 6,925 cubic feet per acre at age 26. Shortleaf pine (Pinus echinata Mill.) planted beside the loblolly pine had a site index of 108 and a yield of 4,120 cubic feet per acre.

Interim Models for Basal Area and Volume Projection of Uneven-Aged Loblolly-Shortleaf Pine Stands

1982 ◽  
Vol 6 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Paul A. Murphy ◽  
Robert M. Farrar
Keyword(s):  
Pinus Taeda ◽  
Basal Area ◽  
Selection System ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Independent Variables ◽  
Elapsed Time ◽  
Volume Production ◽  
Pinus Taeda L ◽  
Area And Volume

Abstract Equations are presented for estimating current volume, projected basal area, and projected volume for stands of loblolly-shortleaf (Pinus taeda L.-Pinus echinata Mill.) pine managed under the selection system. The independent variables are initial stand basal area and elapsed time. The estimates should provide a guide to the cubic-foot volume production that might be expected from stands on average sites (site indices 80-90 ft.), medium basal areas (30 to 70 sq. ft.) and time periods of 10 years or less.

Thinning in mature eastern white pine: 43-year case study

2002 ◽  
Vol 78 (4) ◽  
pp. 539-549 ◽  
Author(s):  
Paul D Anderson ◽  
John C Zasada ◽  
Glen W Erickson ◽  
Zigmond A Zasada
Keyword(s):  
Genetic Diversity ◽  
Dna Analysis ◽  
Large Diameter ◽  
White Pine ◽  
Thinning Intensity ◽  
Pine Regeneration ◽  
Volume Production ◽  
Pine Stands ◽  
Over Time

A white pine (Pinus strobus L.) stand at the western margin of the species range, approximately 125 years of age at present, was thinned in 1953 from 33.5 m2 ha-1 to target residual basal areas of 18.4, 23.0, 27.5, and 32.1 m2 ha-1 . Repeated measurement over the following 43-years indicated that the greatest total volume production and the greatest number of large diameter trees occurred in the unit of highest residual density. Over time, the distribution of stems was predominantly random although mortality between 1979 and 1996 resulted in a tendency for clumping in the 23.0 and 27.5 m2 ha-1 treatments. DNA analysis indicated that thinning intensity had little effect on the genetic diversity of residual white pine. This study suggests that mature white pine stands in northern Minnesota may be managed at relatively high densities without loss of productivity. However, regardless of overstory density, there was little or no white pine regeneration occurring in this stand. Key words: thinning, growth, genetic diversity, molecular markers, spatial pattern, regeneration

A 10-Year Evaluation of Prescribed Winter Burns in Uneven-Aged Stands of Pinus-Taeda L and P. Echinata Mill - Woody Understorey Vegetation Response

1993 ◽  
Vol 3 (1) ◽  
pp. 13 ◽  
Author(s):  
MD Cain
Keyword(s):  
Pinus Taeda ◽  
Prescribed Burning ◽  
Basal Area ◽  
Vegetation Response ◽  
Understorey Vegetation ◽  
Single Tree ◽  
Pine Regeneration ◽  
Single Tree Selection ◽  
Pinus Taeda L

The effects of burning cycles and pine basal area levels were assessed on natural pine regeneration and hardwood development in uneven-aged stands of loblolly and shortleaf pines (Pinus taeda L. and P. echinata Mill.). The treatments included an unburned control and prescribed winter burns at 3-, 6-, and 9-yr intervals. Basal area treatments were 9, 14, 18, and 23 m2 ha-1 for the merchantable-pine component and were maintained on a 6-yr cutting cycle using single-tree selection. Ten years after the study was initiated, density and quadrat stocking of pine regeneration were negatively correlated with overstorey basal area. The 6-yr burning cycle had higher pine density and better quadrat stocking of pine regeneration compared with any other bum treatment mainly because the 6-yr burning cycle coincided with a bumper pine seedcrop and the 6-yr cutting cycle. Recurring fires tended to result in reduced size of hardwood competition but had less impact on hardwood density. When considering a prescribed burning program in uneven-aged stands of loblolly and shortleaf pines, more attention should be given to density, quadrat stocking, and size of established pine regeneration and to expected seedcrops rather than to the prosecution of rigid burning schedules.

Predicting age-age genetic correlations in tree-breeding programs: a case study of Pinus taeda L.

2000 ◽  
Vol 100 (2) ◽  
pp. 199-206 ◽  
Author(s):  
D. P. Gwaze ◽  
F. E. Bridgwater ◽  
T. D. Byram ◽  
J. A. Woolliams ◽  
C. G. Williams
Keyword(s):  
Pinus Taeda ◽  
Genetic Correlations ◽  
Tree Breeding ◽  
Breeding Programs ◽  
Pinus Taeda L

Sawtimber Volume Predictions for Uneven-Aged Loblolly-Shortleaf Pine Stands on Average Sites

1983 ◽  
Vol 7 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Paul A. Murphy ◽  
Robert M. Farrar
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Basal Area ◽  
Site Index ◽  
Selection System ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Elapsed Time ◽  
Pine Stands ◽  
Pinus Taeda L

Abstract Equations are given to estimate current and projected sawtimber volumes and projected basal area of the sawtimber portion of uneven-aged loblolly-shortleaf (Pinus taeda L.-Pinus echinata Mill.) pine stands managed under the selection system. The independent variables are elapsed time, initial merchantable basal area, and the initial ratio of sawtimber basal area to merchantable basal area. The results should provide guidelines for the board-foot and cubic-foot production of sawtimber-sized trees in uneven-aged stands that occur on average sites (site index 90, loblolly pine) in the Coastal Plain.

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