scholarly journals Short-Term Recovery of Residual Tree Damage during Successive Thinning Operations

Forests ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 731
Author(s):  
Farzam Tavankar ◽  
Mehrdad Nikooy ◽  
Angela Lo Monaco ◽  
Francesco Latterini ◽  
Rachele Venanzi ◽  
...  
Keyword(s):  
Root System ◽  
Loblolly Pine ◽  
Diameter Growth ◽  
Plantation Forest ◽  
Short Term ◽  
Thinning Operations ◽  
Timber Plantations ◽  
Residual Tree ◽  
Pinus Taeda L ◽  
Manual Felling

In this study, damage to residual trees during thinning performed by motor-manual felling and whole tree skidding was studied in a loblolly pine (Pinus taeda L.) plantation. Forest intervention was carried out in 2016 and tree wounds were studied and examined over a period of three years. The results indicated that 8% of the residual trees suffered damage, of which 52% was caused by felling operations and 48% by extraction operations. Among the damaged trees, 13% had damage to the root system, 53% to the bole, and 34% to the crown area. The average wound size at the time of occurrence was 71.3 cm2. This was found to be reduced to 54.4 cm2 after a three year period. Wound intensity decreased with higher wound height and increased size. Three years after wound occurrence, only 6.6% were closed, 90.6% were still open, and 2.8% were decayed. The diameter growth in damaged trees was 1.7% lower than in undamaged trees (p > 0.05). Damage to the root system of residual trees reduced diameter growth by 3% (p < 0.05). Intensive wounds (damaged wood) caused a reduction of 22.7% in diameter growth (p < 0.01). In addition, the diameter growth in trees with decayed wounds was 27.4% lower than unwounded trees (p < 0.01). Pre-harvest planning, directional tree felling, marking of the extraction path before logging operations, employment of skilled logging workers, and post-harvest assessment of damaged residual trees are essential implementations in timber plantations.

Growth of Loblolly Pine in the Arkansas Ozarks

1982 ◽  
Vol 6 (4) ◽  
pp. 215-217 ◽  
Author(s):  
G. L. Wheeler ◽  
F. M. Meade ◽  
M. W. Russell
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Volume Growth ◽  
Diameter Growth ◽  
Pinus Taeda L ◽  
Arkansas Ozarks

Abstract A thinning and fertilizing study was established in an 11-year-old loblolly pine (Pinus taeda L.) plantation. Half of the plots were row thinned, removing 50 percent of the trees; plots were split and half were fertilized at a per acre rate of 100 pounds nitrogen, 50 pounds phosphorous and 50 pounds potassium. There was no response of height, d.b.h. or volume growth to fertilizer. Thinning increased diameter growth but decreased volume growth. The trees have shown exceptional growth. At age 17 the height was 49 feet, d.b.h. 7.3 inches and stocking 2,490 cubic feet on the thinned plots. The respective values for the unthinned plots were 48 feet, 6.7 inches, and 3,960 cubic feet.

Short-term effects of fertilization on loblolly pine (Pinus taeda L.) physiology

2004 ◽  
Vol 27 (7) ◽  
pp. 876-886 ◽  
Author(s):  
C. M. GOUGH ◽  
J. R. SEILER ◽  
C. A. MAIER
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Short Term ◽  
Pinus Taeda L ◽  
Short Term Effects

A Postharvest Evaluation of a Mechanized Thinning Operation in Natural Loblolly Pine

1994 ◽  
Vol 18 (1) ◽  
pp. 24-28 ◽  
Author(s):  
T. W. Reisinger ◽  
D. B. Powell ◽  
W. M. Aust ◽  
R. G. Oderwald
Keyword(s):  
Loblolly Pine ◽  
Sandy Loam ◽  
Soil Conditions ◽  
Diameter Growth ◽  
Thinning Operation ◽  
Loam Soil ◽  
Residual Tree ◽  
System Operating ◽  
Tree Characteristics ◽  
Better Than

Abstract The effect on residual tree growth 5 yr after soil rutting caused by a mechanized thinning system operating during wet soil conditions was examined in a natural loblolly pine stand. No significant differences were observed when the physical characteristics of the surface 2 in. of sandy loam soil on skidding corridors and untrafficked areas were compared. Diameter growth in the 0-6 ft zone adjacent to corridors was significantly better than the growth observed in the >12 ft zone, but comparisons of other tree characteristics were not significant. Although not recommended, shallow rutting of corridors when soil conditions are wet may not necessarily be detrimental to overall site productivity in spite of the visual impressions immediately after harvesting. South. J. Appl. For. 18(1):24-28.

Short-term changes in soil C, N, and biota following harvesting and regeneration of loblolly pine (Pinus taeda L.)

2002 ◽  
Vol 164 (1-3) ◽  
pp. 67-88 ◽  
Author(s):  
Mason C Carter ◽  
Thomas J Dean ◽  
Minyi Zhou ◽  
Michael G Messina ◽  
Ziyin Wang
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Short Term ◽  
Soil C ◽  
Pinus Taeda L

Effect of Crown Scorch on Mortality and Diameter Growth of 19-Year-Old Loblolly Pine

1987 ◽  
Vol 11 (4) ◽  
pp. 209-211 ◽  
Author(s):  
Robert J. Lilieholm ◽  
Shih-Chang Hu
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Small Diameter ◽  
Diameter Growth ◽  
Growing Seasons ◽  
Crown Scorch ◽  
Pinus Taeda L ◽  
One Year

Abstract Various levels of crown scorch on 19-year-old loblolly pine (Pinus taeda L.) were examined. Scorching and mortality were greatest for small-diameter, suppressed trees. Diameter growth one year after scorching was not diminished for lightly scorched trees but decreased with increasing crown scorch. During the second and third growing seasons after scorching, only trees receiving complete crown scorch exhibited significantly less diameter growth. South. J. Appl. For. 11(4):209-211.

Magnitude, Duration, and Economic Analysis of Loblolly Pine Growth Response Following Bedding and Phosphorus Fertilization

1986 ◽  
Vol 10 (3) ◽  
pp. 124-128 ◽  
Author(s):  
J. A. Gent ◽  
H. L. Allen ◽  
Robert G. Campbell ◽  
C. G. Wells
Keyword(s):  
Loblolly Pine ◽  
Net Present Value ◽  
Growth Curves ◽  
Phosphorus Fertilization ◽  
Diameter Growth ◽  
Soil P ◽  
Rotation Age ◽  
Pinus Taeda L ◽  
Study Sites ◽  
Lower Coastal Plain

Abstract Thirteen-year growth of planted loblolly pine (Pinus taeda L.) was examined on 9 poorly drained Lower Coastal Plain sites following bedding and/or application of phosphorus (P) at time of planting. Fertilization dramatically increased height and diameter growth during the first 13 years on all 9 study sites. Height and diameter growth were consistently better in fertilized and bedded plots than in flat-planted, bed-only, and fertilizer-only plots. Comparisons of height growth curves indicate that differences between fertilized and nonfertilized plots are continuing. Foliar and soil P levels in fertilized plots at age 13 suggest that growth on these sites may be increased by additional applications of P. Projection of response to rotation age indicates that the combination of fertilization and bedding results in the greatest total cubic-foot volume and after-tax net present value. South. J. Appl. For. 10:124-28, Aug. 1986.

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.

A framework for modeling the dynamics of first-order branches and spatial distribution of knots in loblolly pine trees

2009 ◽  
Vol 39 (3) ◽  
pp. 566-579 ◽  
Author(s):  
Guillermo Trincado ◽  
Harold E. Burkhart
Keyword(s):  
Loblolly Pine ◽  
Spatial Location ◽  
Wood Properties ◽  
Diameter Growth ◽  
Individual Tree ◽  
Branch Diameter ◽  
First Order ◽  
Pine Trees ◽  
Pinus Taeda L ◽  
Tree Growth Model

A stochastic model to simulate the processes of initiation, diameter growth, death, and self-pruning of branches in loblolly pine ( Pinus taeda L.) trees is presented. Information on whorl formation and branch growth was obtained from destructive sampling of whorl sections from 34 trees growing under 10 different initial spacings. Three different components were modeled and hierarchically connected: whorl, branches, and knots. For each new growing season, whorls and branches are assigned stochastically along and around the stem. Thereafter, branch diameter growth is predicted as a function of relative location within the live crown and stem growth. The branch model was linked to an individual-tree growth model, PTAEDA3.1, to simulate the dynamics of first-order branches arising from the main stem. Information on (i) vertical trend of branch diameter along and around the stem, (ii) volume of knots (live and dead portions), and (iii) spatial location, size, and type (live and dead) of knots can be obtained. In its current stage, the framework allows evaluation of the quality of trees and sawlogs produced, inclusion of additional wood properties, and linkage with industrial conversion processes (e.g., sawing simulation). However, further research is needed to obtain data on branch dynamics to validate the overall performance of the model and improve developed submodels.

Effect of Short-Term Storage of Triadimefon-Treated Loblolly Pine Seed on Incidence of Fusiform Rust

1988 ◽  
Vol 12 (1) ◽  
pp. 18-20
Author(s):  
Walter D. Kelley
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Short Term ◽  
Fusiform Rust ◽  
Cronartium Quercuum ◽  
Short Term Storage ◽  
Pinus Taeda L ◽  
Term Storage

Abstract Protection from fusiform rust, caused by Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme Burdsall and Snow, on emerging seedlings of loblolly pine (Pinus taeda L.) was not diminished by storing the treated seeds up to 24 days before sowing. Young seedlings were inoculated with basidiospores of C quercuum f. sp. fusiforme 31 days after seeds were sown, and seedlings were examined for rust galls 7 months later. No galls were found on seedlings from seed dressed with triadimefon, regardless of length of storage. Percentages of seedlings with galls from seeds subjected to the triadimefon seed soak ranged from 12% (0 days storage) to 2% (24 days storage). Sixty-three percent of the seedlings from nontreated control seeds had galls. South. J. Appl. For. 12(1):18-20

Five-Year Responses of Piedmont Loblolly Pine to Six Site-Preparation Treatments

1990 ◽  
Vol 14 (1) ◽  
pp. 3-6
Author(s):  
M. Boyd Edwards
Keyword(s):  
Pinus Taeda ◽  
Weed Control ◽  
Loblolly Pine ◽  
Site Preparation ◽  
Diameter Growth ◽  
Good Growth ◽  
Growth And Survival ◽  
Untreated Check ◽  
Survival And Growth ◽  
Pinus Taeda L

Abstract Six intensities of site preparation ranging from an untreated check to shearing, rootraking, burning, fertilizing, and applying herbicide were applied to replicated 2-ac (0.81 ha) plots on a Piedmont site in central Georgia. Survival, height, and diameter growth of loblolly pine (Pinus taeda L.) were measured for 5 years after planting. All treatments improved survival and growth when compared to the check. Mechanical treatments yielded good growth and survival, and additional benefits were obtained from weed control and ammonium nitrate application. South. J. Appl. For. 14(1):3-6.

Sign in / Sign up

Export Citation Format

Share Document