The Financially Optimal Loblolly Pine Planting Density and Management Regime for Nonindustrial Private Forestland in East Texas

Abstract Economic analyses were conducted to investigate the effects of initial planting density on the profitability of loblolly pine (Pinus taeda L.) on nonindustrial private forestland (NIPF) in East Texas. Five planting densities of 870, 725, 620, 540, and 484 trees per acre (tpa)representing spacings of 5×10, 6×10, 7×10, 8×10, and 9×10 ft, respectively, were investigated. Land expectation values were used to determine the financially optimal thinning and final harvesting schedules (including rotation length and the timing, frequency, and intensity of thinning). Five site indices (50–90), six real alternative rates of return (ARR) (2.5–15.0%), and three thinning options (0, 1, and 2) were employed. Results indicate that two thinnings appear to be the financially optimal number of thinnings for most siteindex-ARR scenarios. The planting spacing of 8×10 ft is optimal when ARR is low, and the 9×10 ft spacing is optimal when ARR is high. South. J. Appl. For. South. J. Appl. For. 29(1):16–21.

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Economic Analysis of Pruning and Low-Density Management Compared to Traditional Management of Loblolly Pine Plantations in East Texas

Southern Journal of Applied Forestry ◽

10.1093/sjaf/28.1.12 ◽

2004 ◽

Vol 28 (1) ◽

pp. 12-20 ◽

Cited By ~ 2

Author(s):

Gary D. Kronrad ◽

Ching-Hsun Huang

Keyword(s):

Loblolly Pine ◽

Market Price ◽

Low Density ◽

East Texas ◽

Timber Management ◽

Rates Of Return ◽

Traditional Management ◽

Premium Price ◽

Pinus Taeda L ◽

Economic Analyses

Abstract Economic analyses were conducted to compare traditional loblolly pine (Pinus taeda L.) timber management to low-density management combined with pruning in East Texas. Soil expectation values were used to determine the financially optimal thinning and final harvesting schedules (including rotation length, and the timing, frequency and intensity of thinning). Two stumpage price assumptions were made: market price and premium price for pruned, clear sawlogs. Five site indices (50 to 90) and six real alternative rates of return (ARR) (2.5 to 15.0%) were employed. Results indicate that if the market price of sawtimber is $450/mbf, traditional management is more profitable for most landowners. However, if a premium price of $550/mbf is paid for pruned logs, low-density management is more profitable for most landowners. For low-density management, a $100/mbf price increase for sawtimber does not affect the optimal thinning and harvesting schedules in any recognizable pattern. South. J. Appl. For. 28(1):12–20.

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Fusiform Rust Trends in East Texas: 1969-1987

Southern Journal of Applied Forestry ◽

10.1093/sjaf/12.4.259 ◽

1988 ◽

Vol 12 (4) ◽

pp. 259-261 ◽

Cited By ~ 1

Author(s):

J. David Lenhart ◽

W. Thomas McGrath ◽

Terry L. Hackett

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Pinus Elliottii ◽

Slash Pine ◽

Pine Plantations ◽

East Texas ◽

Infection Rates ◽

Fusiform Rust ◽

Cronartium Quercuum ◽

Pinus Taeda L

Abstract Five surveys of pine plantations in East Texas over an 18-year period (1969-1987) indicated that fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme Birdsall and Snow) infection rates have increased to current levels of about 50% on slash pine (Pinus elliottii Engelm.) and are continuing to increase on loblolly pine (Pinus taeda L.) to 10-15% levels. South. J. Appl. For. 12(4):259-261.

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Performance of loblolly pine (Pinus taeda L.) seedlings and micropropagated plantlets on an east Texas site

Forest Ecology and Management ◽

10.1016/s0378-1127(02)00483-8 ◽

2003 ◽

Vol 178 (3) ◽

pp. 257-270 ◽

Cited By ~ 8

Author(s):

Mohd S. Rahman ◽

Michael G. Messina ◽

Ronald J. Newton

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

East Texas ◽

Pinus Taeda L

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Direct-Seeding of Loblolly Pine in the North Carolina Piedmont: Four-Year Results

Southern Journal of Applied Forestry ◽

10.1093/sjaf/13.2.91 ◽

1989 ◽

Vol 13 (2) ◽

pp. 91-93

Author(s):

Dennis W. Hazel ◽

Mark D. Smith ◽

Carlyle Franklin

Keyword(s):

North Carolina ◽

Pinus Taeda ◽

Loblolly Pine ◽

Site Preparation ◽

Direct Seeding ◽

Effective Alternative ◽

The North ◽

North Carolina Piedmont ◽

Pinus Taeda L ◽

Private Forestland

Abstract Direct-seeding of loblolly pine (Pinus taeda L.) in the Piedmont was evaluated using combinations of the following treatments: hand-casting and mechanical broadcast sowing; use of stratified and unstratified seed; and sowing during November, January, and March. Sowing stratified seedin November and unstratified seed in March resulted in the lowest stocking; however, regeneration was accomplished by all treatments. Costs including seed, but exclusive of site preparation costs, were $10/ac for hand-casting and $18/ac for mechanical sowing. Because capitalis the most limiting resource for accomplishing regeneration on nonindustrial private forestland, direct-seeding is a viable regeneration alternative. When adequate labor is available, direct-seeding is an effective alternative to machine use. South J. Appl. For. 13(2):91-93.

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Economic analysis and revenue optimization in management regimes of Pinus taeda

Revista CERES ◽

10.1590/0034-737x201764030002 ◽

2017 ◽

Vol 64 (3) ◽

pp. 222-231

Author(s):

Hassan Camil David ◽

Julio Eduardo Arce ◽

Edilson Batista de Oliveira ◽

Sylvio Péllico Netto ◽

Rodrigo Otávio Veiga de Miranda ◽

...

Keyword(s):

Pinus Taeda ◽

Net Present Value ◽

Optimal Number ◽

Revenue Optimization ◽

Management Regime ◽

Forest Sites ◽

Management Regimes ◽

Pinus Taeda L ◽

Harvesting Costs ◽

Selection Of

ABSTRACT The objective of this work was to select, using operational research techniques, management regimes of Pinus taeda L. that maximize the revenue generated by the wood, considering different attractiveness rates. The OpTimber-LP® software, which performs the simulations using SisPinus® software, was used for forest optimization. The regimes consisted of different combinations of forest sites, planting densities, thinning regimes and clearcutting ages, totaling 17,760 regimes per site. Wood production was quantified and evaluated by assortment classes. Planting, thinning and harvesting costs were considered. The Annualized Net Present Value (ANPV) and the Internal Rate of Return (IRR) of each management regime were calculated. As a result, the density of 1,600 plants per ha optimized ANPV for most cases. Optimized regimes included no or only one thinning and provided ANPV of 2,753 and 158 BRL per ha and IRR of 22.9% and 2.9% for sites I and IV, respectively. It was concluded that the optimal number of thinning is reduced in lower quality sites, and the less productive the site, the later the optimal year for clearcutting. The attractiveness rate is a parameter that contributes to the selection of thinning regimes, because the larger the rate, the larger the number of thinning and the earlier they should be carried out.

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

Southern Journal of Applied Forestry ◽

10.1093/sjaf/13.1.5 ◽

1989 ◽

Vol 13 (1) ◽

pp. 5-8 ◽

Cited By ~ 1

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.

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Systemic Insecticide Injections for Control of Cone and Seed Insects in Loblolly Pine Seed Orchards—2 Year Results

Southern Journal of Applied Forestry ◽

10.1093/sjaf/26.3.146 ◽

2002 ◽

Vol 26 (3) ◽

pp. 146-152 ◽

Cited By ~ 6

Author(s):

Donald M. Grosman ◽

William W. Upton ◽

Frank A. McCook ◽

Ronald F. Billings

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Seed Orchard ◽

Systemic Insecticide ◽

East Texas ◽

Emamectin Benzoate ◽

Seed Orchards ◽

Pinus Taeda L ◽

Cone And Seed Insects ◽

Seed Insects

Abstract Three systemic insecticide treatments, emamectin benzoate alone, imidacloprid alone, and a combination of emamectin benzoate and thiamethoxam, were injected one or two times into loblolly pine,Pinus taeda L., during a 2 yr period in a seed orchard in east Texas. Single injections of treatments containing emamectin benzoate reduced coneworm (Dioryctria spp.) damage by 94–97% during the study period. A second injection after 1 yr did not improve protection. Imidacloprid also significantly reduced coneworm damage in 1999, but not in 2000. Significant reductions in damage from pine seed bugs (Tetyra bipunctata Say andLeptoglossus corculus Herrich-Schaffer) and an increase in the number of full seeds per cone resulted from imidacloprid and thiamethoxam treatments and to a lesser extent from emamectin benzoate. Yearly injections of imidacloprid or thiamethoxam were required to maintain protection against seed bugs. The best overall treatment, two injections of emamectin benzoate plus thiamethoxam, reduced cone and seed losses from insects by 86%. South. J. Appl. For. 26(3):146–152.

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