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.

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.

scholarly journals Height Growth of Loblolly and Slash Pine Plantations in the Northern Post-Oak belt of Texas

1989 ◽  
Vol 13 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Robert S. Hansen ◽  
M. Victor Bilan
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Pinus Elliottii ◽  
Height Growth ◽  
Environmental Data ◽  
Pinus Echinata ◽  
East Texas ◽  
Shortleaf Pine ◽  
Post Oak ◽  
Pinus Taeda L

Abstract Age accounted for over 70% of the variation in tree height of 10- to 44-year-old loblolly pine (Pinus taeda L.) and slash (Pinus elliottii Engelm.) plantations established on deep sands, moderate sands, and nonsandy soils in the Northern Post-Oak Belt of Texas. Climatic and edaphicfactors, relating either directly or indirectly to the amount of moisture available for tree use, explained up to 17% of height growth variation. Height growth of the plantations was comparable to that of plantations growing in the pine-mixed hardwood forest cover type of East Texas. The NorthernPost-Oak Belt of Texas is an area approximately 50 to 100 miles wide located between the pine-mixed hard-wood forest type to the east and the black-land prairie to the west. Soils within the belt belong primarily to the Alfisol or Ultisol soil orders. The western-most areas of the belt receiveup to 20% less annual rain fall than the pine-mixed hardwood type of East Texas (U.S. Environmental Data and Information Service 1949-1982). The present forest of this area is dominated by post oak (Quercus stellata Wang.), black-jack oak (Quercus Marilandica Muench.), bluejack oak (Quercusincana Bartr.), and black hickory (Carya texana Buckl.) (Ward 1984). Loblolly pine (Pinus taeda L.) and shortleaf pine (Pinus echinata Mill.) occur naturally only in scattered locations (Wilson and Hacker 1986). South. j. Appl. For. 13(1):5-8.

scholarly journals Rehabilitation of Understocked Loblolly-Shortleaf Pine Stands—II. Development of Intermediate and Suppressed Trees Following Release in Natural Stands

1998 ◽  
Vol 22 (1) ◽  
pp. 41-46 ◽  
Author(s):  
James B. Baker ◽  
Michael G. Shelton
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Site Index ◽  
Diameter Growth ◽  
Shortleaf Pine ◽  
High Quality ◽  
Pine Stands ◽  
Pinus Taeda L ◽  
Natural Stands ◽  
Crown Dimensions

Abstract Development of 86 intermediate and suppressed loblolly pine (Pinus taeda L.) trees, that had been recently released from overtopping pines and hardwoods, was monitored over a 15 yr period. The trees were growing in natural stands on good sites (site index = 90 ft at 50 yr) that had been recently cut to stocking levels ranging from 10 to 50%. At time of release, the trees averaged 26 yr in age, 4.8 in. in dbh, and 37 ft in height. The trees had averaged only 0.5 in. in dbh growth the 5 yr prior to release (0.1 in./yr). After 15 yr, the 77 surviving trees averaged 59 ft in height and 12.9 in. in dbh, increasing 21 ft in height and 8.1 in. in dbh. During the 15 yr period, crown dimensions of the trees increased markedly as well. On average, crown lengths increased 11 ft (from 16 to 27 ft); crown widths nearly tripled from 9 to 25 ft; and crown volumes increased 11 fold from 608 to 6,700 ft³. The majority of the trees had good form and would produce high-quality sawtimber. Satisfactory response to release was best predicted by initial dbh and live-crown ratio. Results of the study suggest that trees with at least a 20% live-crown ratio should satisfactorily respond to release even though they had developed in lower crown positions of fully stocked uneven-aged stands for 10 to 50 yr. Responding trees rapidly expanded their crowns and accelerated in height and diameter growth. South. J. Appl. For. 22(1):41-46.

Early Growth and Survival of Loblolly, Shortleaf, and Putative Hybrid Pines on Littleleaf Sites in the Piedmont of South Carolina

1982 ◽  
Vol 6 (4) ◽  
pp. 218-221 ◽  
Author(s):  
J. D. Benson ◽  
R. E. Schoenike ◽  
D. H. Van Lear
Keyword(s):  
South Carolina ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Putative Hybrid ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Growth And Survival ◽  
Natural Hybrids ◽  
Species Survival ◽  
Pinus Taeda L

Abstract Progeny of presumed natural hybrids of shortleaf (Pinus echinata Mill.) and loblolly pine (Pinus taeda L.) growing in the Piedmont of South Carolina were found to have height and diameter growth rates between that of the two species. Survival of these trees was less than loblolly but no differences were found between them and shortleaf pine. Incidence of fusiform rust was low with the putalive hybrid having a infection rate 3 to 11 percent lower than loblolly pine. These putative hybrids, perhaps natural hybrids of loblolly and shortleaf pines, also offer potential resistance to littleleaf disease and would be a planting alternative to shortleaf pine in certain areas.

scholarly journals Competition Effects on Growth and Crown Dimensions of Shortleaf and Loblolly Pine in Mature, Natural-Origin, Pine–Hardwood Mixtures of the Upper West Gulf Coastal Plain of Arkansas, USA: A Neighborhood Analysis

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 935
Author(s):  
Mohammad Bataineh ◽  
Ethan Childs
Keyword(s):  
Loblolly Pine ◽  
Species Abundance ◽  
Basal Area ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Species Identity ◽  
Linear Mixed Effects ◽  
Natural Origin ◽  
Pinus Taeda L ◽  
Crown Dimensions

The need for a comprehensive and mechanistic understanding of competition has never been more important as plants adapt to a changing environment and as forest management evolves to focus on maintaining and enhancing complexity. With the recent decline in shortleaf pine (Pinus echinata Mill.) land area, it is critical to determine the effects of competition on shortleaf pine and its performance against loblolly pine (Pinus taeda L.), the preferred planted replacement. We evaluate differences in shortleaf and loblolly pine 10 year mean basal area increment (BAI) and crown dimensions across a gradient of neighborhoods. Linear mixed-effects regression models were developed using BAI and several crown metrics as responses and crowding, competitor species abundance and identity, and initial size and species identity of focal tree as predictors. Crowding of focal trees negatively impacted BAI and crown size (p < 0.001, respectively). Although loblolly pine had three times higher BAI as compared to shortleaf pine within similar neighborhoods, BAI was variable, and the crowding effect did not differ between shortleaf and loblolly pine (p ranged from 0.51–0.99). Competitive impacts on focal trees did not differ by competitor identity (p ranged from 0.07–0.70). Distance-independent competition indices better explained the variation in BAI and horizontal crown metrics, while distance-dependent size ratios were more effective at evaluating vertical crown metrics. These findings highlight shortleaf pine competitive potential in mature, natural-origin stands and provide support for the restoration of pine–hardwood and hardwood–pine stratified mixtures as well as management of shortleaf pine at long rotations.

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.

Eight-Year Performance of Loblolly Pine with Pisolithus Ectomycorrhizae on a Good-Quality Forest Site

1988 ◽  
Vol 12 (4) ◽  
pp. 275-280 ◽  
Author(s):  
Donald H. Marx ◽  
Charles E. Cordell ◽  
Alexander Clark
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Basal Area ◽  
Site Index ◽  
Forest Site ◽  
Water Deficits ◽  
Growing Seasons ◽  
Area Growth ◽  
Pinus Taeda L ◽  
Crown Closure

Abstract Loblolly pine (Pinus taeda L) seedlings with different initial amounts of Pisolithus tinctorius (Pt) ectomycorrhizae (Pt index 0, 27, 46, 68, or 88) were planted on a good-quality site (site index 90 ft at age 50) in southwest Georgia. After 8 years and crown closure, trees with Pt indices of 88 and 68 had significantly better survival and greater heights, diameters, volumes, and green weights per tree and per ac than nursery-run, control seedlings (Pt index 0). Volume and weight yields per ac were over 50% greater and volume and weight yields per tree were over 20% greater for trees in the Pt index 88 treatment than they were for control trees. A special statistical analysis indicated that average per ac volume was positively correlated with initial Pt index values larger than 58. Tree-ring analyses showed that trees with a Pt index of 88 had significantly greater annual basal area growth than controls during growing seasons with water deficits of 8 to 13 in. Annual growth did not differ when water deficits were greater or less than these amounts. After 8 years, Pt basidiocarps were present throughout the study site. Mycorrhizal treatment integrity may have been lost after 3 or 4 years. South. J. Appl. For. 12(4):275-280

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