Improvement Cut Accelerates White Pine Sawlog Growth

1984 ◽  
Vol 60 (1) ◽  
pp. 3-9 ◽  
Author(s):  
W. M. Stiell
Keyword(s):  
Basal Area ◽  
Pinus Strobus ◽  
Middle Aged ◽  
White Pine ◽  
Eastern White Pine

Middle-aged eastern white pine (Pinus strobus L.) were released in 1971 by removal of overstorey hardwoods in a commercial cut. Ten-year growth of the pine indicated that treatment had been effective in promoting development of sawlog sizes. Compared with untreated stands, the margin of growth of this material was up to 30 m3/ha for middle-density understoreys (12 m2/ha of basal area), and would reach 71 m3/ha over 20 years according to growth projections.

scholarly journals Effects of structural retention harvesting on seed production and seed characteristics of old-growth eastern white pine (Pinus strobus L.) stands in northern Ontario

2010 ◽  
Vol 86 (5) ◽  
pp. 614-622 ◽  
Author(s):  
William C. Parker ◽  
Thomas L. Noland ◽  
Brian Brown
Keyword(s):  
Seed Production ◽  
Basal Area ◽  
Pinus Strobus ◽  
White Pine ◽  
Eastern White Pine ◽  
Old Growth ◽  
Partial Harvest ◽  
Old Growth Forest ◽  
Structural Retention ◽  
Seed Characteristics

Seed production and seed characteristics were examined during a mast seeding year in unmanaged, old-growth eastern white pine (Pinus strobus L.) stands located in northeastern Ontario and compared with those in adjacent stands partially harvested 16 years earlier using a structural retention system. Seed yields from old-growth stands were comparable to those of mature, second growth white pine stands but seed production assessed relative to unit area (# ha-1) and pine basal area (# m-2) was lower in partially harvested stands. In both unmanaged and harvested stands, seed production rate of trees growing in localized areas of lower pine basal area was higher. Seed characteristics and seed viability did not differ between harvest treatments. Although structural retention harvesting reduced seed production, results suggest that supply and viability of seed are unlikely to limit seedling recruitment in managed or protected old-growth white pine forests. Key words: germination, old-growth forest, partial harvest, seed mass, seed production

Thinning Eastern White Pine in the Southern Appalachians

1981 ◽  
Vol 5 (2) ◽  
pp. 68-73
Author(s):  
Lino Della-Bianca
Keyword(s):  
North Carolina ◽  
Volume Growth ◽  
Basal Area ◽  
Pinus Strobus ◽  
Southern Appalachians ◽  
White Pine ◽  
Eastern White Pine ◽  
Growth Trends

Abstract Standing volumes and 80-year growth trends and yields are given for three eastern white pine (Pinus strobus L.) study plots in the Old Orchard Plantation at Biltmore, North Carolina. The site 71 plot was thinned seven times and its yield compared with two unthinned plots, one each on site 75 and site 56. Site strongly influenced stand densities, average stand diameters, and stand volumes. Results showed that on site 71 at age 75 a heavy thinning from 184 to 126 ft²/A of basal area appreciably increased diameter and volume growth of eastern white pine. Between age 72 and 80, ingrowth on site 56 substantially contributed to board-foot yield.

scholarly journals AIR-LAYERING OF EASTERN WHITE PINE (Pinus strobus L.)

1959 ◽  
Vol 35 (1) ◽  
pp. 19-21 ◽  
Author(s):  
J. L. Farrar ◽  
W. D. McJannet
Keyword(s):  
Pinus Strobus ◽  
White Pine ◽  
Eastern White Pine

Response of Eastern White Pine to Nitrogen Fertilization

1991 ◽  
Vol 8 (2) ◽  
pp. 83-85
Author(s):  
Robert K. Shephard ◽  
Gregory A. Reams ◽  
Ronald C. Lemin
Keyword(s):  
Volume Growth ◽  
Basal Area ◽  
Cost Effective ◽  
Application Rate ◽  
White Pine ◽  
Eastern White Pine ◽  
Application Rates ◽  
Volume Response ◽  
Pine Stands ◽  
Area Response

Abstract Plots were established in nine eastern white pine stands; six on outwash soils and three on till soils. Nitrogen was applied to the plots at rates of 0, 50, 100, and 200 lb/ac. Four-year growth response functions for basal area/ac and merchantable cubic ft volume/ac were developed. Basal area growth was 9.2 ft²/ac greater and volume growth was 235 ft³/ac greater on the till soils compared with the outwash soils, regardless of application rate Both basal area and volume growth increased as basal area/ac increased. Maximum basal area response, 5.7 ft²/ac, and maximum volume response, 198 ft³/ac, was estimated to occur at an application rate of approximately 160 lb of nitrogen/ac, with incremental response being greater at lower application rates. Fertilization at a rate of approximately 100 lb of nitrogen/ac appears to be a cost effective practice for many white pine stands. North. J. Appl. For. 8(2):83-85.

scholarly journals Dendrochronological Analyses and Whole-Tree Dissections Reveal Caliciopsis Canker (Caliciopsis pinea) Damage Associated with the Declining Growth and Climatic Stressors of Eastern White Pine (Pinus strobus)

Forests ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 347
Author(s):  
Kara K.L. Costanza ◽  
William H. Livingston ◽  
Shawn Fraver ◽  
Isabel A. Munck
Keyword(s):  
New England ◽  
Tree Growth ◽  
Economic Value ◽  
Pinus Strobus ◽  
White Pine ◽  
Eastern White Pine ◽  
Management Options ◽  
Biological Impacts ◽  
Insight Into ◽  
Whole Tree

Eastern white pine (Pinus strobus) is considered a signature species in eastern North America, particularly in New England. In recent years, however, white pine has experienced increased damage due to native pathogens that reduce the species’ growth, productivity, and economic value. One disease of concern is Caliciopsis canker, caused by the fungal pathogen Caliciopsis pinea, which is associated with excessive resin production, cankers, rough bark, bark fissures/cracks, and reduced growth in white pine. Recent studies have documented the extent of Caliciopsis canker in New England and its association with soil and stocking conditions, yet few studies have focused on the biological impacts of the disease. This study used dendrochronology and whole-tree dissections to reconstruct Caliciopsis canker history in three New England white pine sites, quantify its impact on tree growth and vigor, identify pre-disposing factors, and assess potential silvicultural management options. Dendrochronology and whole-tree dissections provided a unique insight into canker damage throughout trees’ development. Canker damage was first reported in New Hampshire in the mid-1990s, yet cankers were present as far back as 1967 and have steadily increased since the mid-1980s. Increased canker damage was significantly associated with decreased live crown ratios and declining tree growth. Trees maintaining a 30% live crown ratio or greater generally experienced the least canker damage. Furthermore, peaks in canker occurrence were consistent across sites, indicating a regional synchronization of infection and damage. Canker damage was closely associated with climatic events such as droughts and a New England hurricane. The results suggest that Caliciopsis canker has been affecting white pine health over the last 40 years, and that the disease has become more prevalent in the past 20–30 years. Yet, our results suggest that if silvicultural prescriptions target low density thinnings that favor trees with higher live crown ratios (>30%) and low Caliciopsis symptom severity ratings, the risk of canker damage can be reduced in white pine stands.

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