scholarly journals Four Site-Preparation Techniques for Regenerating Pine-Hardwood Mixtures in the Piedmont

1997 ◽  
Vol 21 (3) ◽  
pp. 116-122 ◽  
Author(s):  
Thomas A. Waldrop
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Height Growth ◽  
Site Preparation ◽  
Site Conditions ◽  
Growing Seasons ◽  
Southern Appalachian ◽  
Medium Quality ◽  
Pinus Taeda L ◽  
Preparation Techniques

Abstract Four variations of the fell-and-burn technique, a system developed to produce mixed pine-hardwood stands in the Southern Appalachian Mountains, were compared in the Piedmont region. All variations of this technique successfully improved the commercial value of low-quality hardwood stands by introducing a pine component. After six growing seasons, loblolly pine (Pinus taeda L.) occupied the dominant crown position and oaks the codominant position in fell-and-burn treated stands on poor to medium quality sites. The precise timing of felling residual stems, as prescribed by the fell-and-burn technique, may be flexible because winter and spring felling produced similar results. Although summer site preparation burns reduced hardwood height growth by reducing the length of the first growing season, they did not improve pine survival or growth. Pines were as tall as hardwoods within four growing seasons in burned plots and within six growing seasons in unburned plots. Additional research is needed to determine the level or intensity of site preparation needed to establish pine-hardwood mixtures over a range of site conditions. South. J. Appl. For. 21(3):116-122.

scholarly journals Herbicide Release of 3-Year-Old Loblolly Pine from Competing Hardwoods in Arkansas

1996 ◽  
Vol 20 (3) ◽  
pp. 121-126 ◽  
Author(s):  
Harold E. Quicke ◽  
Glenn R. Glover ◽  
Dwight K. Lauer
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Basal Area ◽  
Late Summer ◽  
Height Growth ◽  
Response To Treatment ◽  
Growing Seasons ◽  
Hardwood Species ◽  
Pinus Taeda L ◽  
Area Response

Abstract Objectives were to identify effective late-summer and spring herbicide treatments for the release of 3-yr-old loblolly pine (Pinus taeda L.) from competing hardwoods and to quantify longer term pine growth response to varying levels of hardwood control. Effective late-summer treatments included imazapyr at 1.0 and 0.5 lb ae/ac, imazapyr at 0.5 lb ae/ac in combination with glyphosate at 1.125 lb ae/ac, and imazapyr at 0.25 lb ae/ac with surfactant. The best spring treatment was hexazinone at 2.0 lb ai/ac. Although spring imazapyr treatments stunted pine height growth 2 growing seasons after treatment, height growth had recovered by age 10. Late-summer imazapyr treatments provided better hardwood control than spring treatments. Although check plot hardwood basal area averaged 9 ft2/ac, and winged elm (a species known to be tolerant to imazapyr) was the predominant hardwood species at treatment, pine basal area response to treatment ranged from 6 to 27 ft2/ac at age 10. Pine response increased with imazapyr rate for late-summer treatments. Adding hexazinone to imazapyr did not improve hardwood control, and no benefits were observed from adding metsulfuron to either glyphosate or hexazinone. South. J. Appl. For. 20(3): 121-126.

Growth and Development of Loblolly and Slash Pines Direct-Seeded or Planted on a Cutover Site

1981 ◽  
Vol 5 (3) ◽  
pp. 115-119 ◽  
Author(s):  
Thomas E. Campbell
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Growth And Development ◽  
Height Growth ◽  
Site Preparation ◽  
Slash Pine ◽  
Direct Seeding ◽  
Direct Seeded ◽  
Pinus Taeda L

Abstract After 15 years, loblolly pine (Pinus taeda L.) planted on a cutover site yielded more volume than four of six direct-seeding treatments. Height growth of seeded loblolly responded to site treatment, but method of site preparation had little influence. Regeneration technique did not affect slash pine (P. elliottii var. elliottii Engelm.)

Early Growth Reductions in Short Rotation Loblolly and Slash Pine in Central Louisiana

1994 ◽  
Vol 18 (1) ◽  
pp. 35-39 ◽  
Author(s):  
James D. Haywood
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Tree Growth ◽  
Early Growth ◽  
Height Growth ◽  
Slash Pine ◽  
Logging Damage ◽  
Growing Seasons ◽  
Short Rotation ◽  
Pinus Taeda L

Abstract Twenty-two-year-old loblolly (Pinus taeda L.) and slash pine (P. elliottii Engelm. var. elliottii) research plantations were clearcut-harvested and replanted with the same species. The objective was to compare tree growth between the two rotations. Seven growing seasons into the second rotation, loblolly and slash pines averaged an 8- and 3-ft reduction in total height, respectively. Height growth of loblolly pine was especially reduced on replanted plots that had been harrowed or harrowed and bedded 22 yr earlier, but the reduction in growth occurred on the burn-only (check)plots as well. The reasons for these growth declines were not identified, but it was unlikely that differences between rotations in rainfall patterns, logging damage, or competition were responsible. South. J. Appl. For. 18(1):35-39.

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

scholarly journals Washing Roots Reduces Vigor of Loblolly Pine Seedlings

2001 ◽  
Vol 25 (1) ◽  
pp. 25-30
Author(s):  
William A. Carey ◽  
David B. South ◽  
M. Williford ◽  
J. Britt
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Fine Roots ◽  
Height Growth ◽  
Initial Height ◽  
Pine Seedlings ◽  
Loam Soil ◽  
Bud Growth ◽  
Pinus Taeda L ◽  
Growth Of Seedlings

Abstract Loblolly pine (Pinus taeda L.) seedlings were lifted from two nurseries in Georgia, and the roots were washed using equipment built for that purpose. Seedlings then received two levels of storage and were outplanted not far from the nursery of origin (one loam soil and one sandy soil). Immediately after washing, root weights and the length of fine roots did not differ among wash treatments from either nursery. Survival was excellent for all treatments on the loam soil, but a single wash reduced survival by 5 to 10% when seedlings were planted in sand. Washing slowed the rate of budbreak and early height growth. Bud growth of seedlings planted in a stress pit (containing sand) was correlated with both root growth 1 month after planting (r = 0.36,P = 0.0003) and survival 2 months after planting (r =0.62,P = 0.01). Among seedlings outplanted on a sandy site, initial height growth also correlated with survival (r = 0.49,P = 0.007). South. J. Appl. For. 25(1):25–30.

scholarly journals Loblolly pine (Pinus taeda L.) productivity 23 years after wet site harvesting and site preparation in the lower Atlantic coastal plain

2017 ◽  
Vol 401 ◽  
pp. 207-214 ◽  
Author(s):  
Charles M. Neaves ◽  
W. Michael Aust ◽  
M. Chad Bolding ◽  
Scott M. Barrett ◽  
Carl C. Trettin ◽  
...  
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Coastal Plain ◽  
Site Preparation ◽  
Atlantic Coastal Plain ◽  
Pinus Taeda L ◽  
Atlantic Coastal

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

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.

scholarly journals Intensive Forest Management Affects Loblolly Pine (Pinus taeda L.) Growth and Survival on Poorly Drained Sites in Southern Arkansas

2006 ◽  
Vol 30 (2) ◽  
pp. 79-85 ◽  
Author(s):  
M.S. Rahman ◽  
M.G. Messina ◽  
R.F. Fisher
Keyword(s):  
Forest Management ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Site Preparation ◽  
Growth And Survival ◽  
Vegetation Control ◽  
Mechanical Site Preparation ◽  
Intensive Forest Management ◽  
Tree Survival ◽  
Pinus Taeda L

Abstract We investigated if intensive forest management could enhance loblolly pine seedling growth and survival on West Gulf flatwoods where winter and spring waterlogging and frequent summer drought limit loblolly pine performance. Fertilization, chemical vegetation control, and mechanical site preparation (combined bedding and ripping) were tested in different combinations on six sites established in southern Arkansas in early 1999. Loblolly pine (Pinus taeda L.) seedling performance was monitored in the first two growing seasons (1999 and 2000) and fifth growing season (2003) after planting. Fertilization increased growth in all years. Mechanical site preparation affected only height and only until year 2. There was no effect of chemical vegetation control in any measurement year, although chemical vegetation control resulted in greater growth in combination with fertilization than did either treatment applied separately. Tree survival averaged 92% a few months after planting and then decreased significantly at year 1 (77%), and remained comparable until year 5, the last year data were collected. Tree survival was not affected by mechanical site preparation, fertilization, or chemical vegetation control. Intensive forest management can increase loblolly pine seedling growth and survival on poorly drained sites in the West Gulf.

Effect of Logging Equipment Traffic On Soil Density and Growth and Survival of Young Loblolly Pine

1984 ◽  
Vol 8 (2) ◽  
pp. 109-112 ◽  
Author(s):  
B. Graeme Lockaby ◽  
Clyde G. Vidrine
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Tree Growth ◽  
Soil Property ◽  
Height Growth ◽  
Soil Density ◽  
Growth And Survival ◽  
Pinus Taeda L ◽  
Root Collar ◽  
Density Results

Abstract Soil bulk densities, determined on plots representing a gradient of harvesting traffic, indicated that compaction was an average of 12 percent greater on former logging decks and primary skid roads as compared to nontrafficked areas. Penetrometer readings supported the bulk density results and, in addition, showed increased compaction on secondary roads and road borders as compared to relatively undisturbed areas. This compaction was reflected in height growth reductions of 39 to 59 percent in five-year old loblolly pine (Pinus taeda L.) on decks and primary roads. Number of pine per acre was reduced by 88 to 91 percent on the same areas. Root collar diameters also decreased but were not significantly different from those on relatively undisturbed plots. These results are discussed in relation to the 1 percent proportion of the harvested area involved in soil property impacts and reduced tree growth.

Sign in / Sign up

Export Citation Format

Share Document