scholarly journals Results of Research in Northern Hardwood Silviculture at Dudswell

1977 ◽  
Vol 53 (4) ◽  
pp. 223-225 ◽  
Author(s):  
M. R. Roberge
Keyword(s):  
Sugar Maple ◽  
Poor Quality ◽  
Site Preparation ◽  
Red Maple ◽  
Yellow Birch ◽  
Artificial Regeneration ◽  
Research Results ◽  
Northern Hardwood ◽  
Selection Cutting ◽  
Clear Cutting

The stand improvement and regeneration treatments carried out by the Department of Fisheries and the Environment of Canada at Dudswell Experimental Forest in cooperation with Domtar Ltd. are producing results after 15 years of observations. These are directly applicable to management for timber, recreation, wildlife, and water in Quebec hardwood stands dominated by sugar maple, beech, yellow birch, or red maple. Research results indicate marked advantages, in stands of good quality hardwoods, of thinnings taking 30 to 40% of the total volume and of group or strip selection cutting, and, in stands of poor quality hardwoods, of strip clear cutting. Site preparation and artificial regeneration are not required to obtain a stand of a quality at least equal to that of the original stand.

scholarly journals Improving the Composition of Beech-Dominated Northern Hardwood Understories in Northern Maine

2011 ◽  
Vol 28 (4) ◽  
pp. 186-193 ◽  
Author(s):  
Andrew S. Nelson ◽  
Robert G. Wagner
Keyword(s):  
Sugar Maple ◽  
Low Cost ◽  
Optimal Treatment ◽  
Red Maple ◽  
Yellow Birch ◽  
Northern Hardwood ◽  
Hardwood Species ◽  
Understory Composition ◽  
Glyphosate Herbicide ◽  
Selection Harvesting

Abstract The natural regeneration that develops following the shelterwood and selection harvesting of northern hardwood stands across the Northeast is often plagued by an overabundance of American beech infected with beech bark disease. This regenerating beech typically dominates and interferes with the regeneration of more desired hardwood species (sugar maple, yellow birch, and red maple), lowering the productivity and value of future stands. We tested factorial combinations of glyphosate herbicide (Accord Concentrate) rate and surfactant (Entrée 5735) concentration to identify an optimal treatment that would maximize beech control while minimizing sugar maple injury. Third-year posttreatment results revealed that glyphosate rate was a more important factor than surfactant concentration in reducing beech abundance and preserving sugar maple. The optimal treatment (0.56‐1.12 kg/ha of glyphosate plus 0.25‐0.5% surfactant) selectively removed 60‐80% of beech stems, whereas sugar maple control was less than 20%. The five dominant hardwood species differed substantially in their susceptibility to the treatments in the following decreasing order: beech > striped maple > yellow birch > red maple > sugar maple. Similar results produced using a backpack mistblower suggested transferability of treatment effects to operational applications using a tractor-mounted mistblower. Our findings indicate that this relatively low-cost and effective treatment can substantially improve the understory composition of northern hardwood stands.

Influence of cutting methods on natural and artificial regeneration of yellow birch in Quebec northern hardwoods

1977 ◽  
Vol 7 (1) ◽  
pp. 175-182 ◽  
Author(s):  
M. R. Roberge
Keyword(s):  
Growth Rate ◽  
Group Selection ◽  
Yellow Birch ◽  
Artificial Regeneration ◽  
Selection Cutting ◽  
Clear Cut ◽  
Clear Cutting ◽  
Quality Health ◽  
Notable Increase ◽  
Artificial Seeding

This is an interim assessment of a thinning and of a group-selection cutting associated with various treatments to increase yellow birch (Betulaalleghaniensis Britton) regeneration and production. Ten years after cutting, improved quality, health, and growth rate of trees were observed where thinning had been carried out with a very abundant regeneration which was growing well in clear-cut patches. Ground scarification with or without artificial seeding stimulated yellow birch establishment, but the effects of stimulation did not last and had disappeared 5 years after scarification. Only planting resulted in a notable increase in stocking of dominant yellow birch still conspicuous 5 and 10 years after clear-cutting and in a percentage of yellow birch stems in the main story superior to that of the original stand.

Apparent Defect in Second-Growth Tolerant Hardwood Stands in Quebec

1969 ◽  
Vol 45 (3) ◽  
pp. 180-183
Author(s):  
Carl H. Winget
Keyword(s):  
Sugar Maple ◽  
Poor Quality ◽  
Mechanical Injury ◽  
Yellow Birch ◽  
Stem Form ◽  
Partial Cutting ◽  
Clear Cutting ◽  
Residual Sugar ◽  
Second Growth ◽  
Tree Quality

Studies of external evidence of defect in second-growth hardwood stands in Quebec indicated that almost 50% of residual sugar maple, yellow birch and beech trees were seriously defective. Mechanical injury, particularly crown damage, and poor stem-form appeared to be the major sources of defect. Advance-growth saplings displayed much less evidence of defect. Clear-cutting systems leaving few poor-quality stems and depending for regenerations either on advance growth or on scarification and seeding seemed preferable to partial cutting. Tree quality classifications and cull studies in hardwood advance growth are required.

Sap yields, sugar content, and soluble carbohydrates of saps and syrups of some Canadian birch and maple species

1987 ◽  
Vol 17 (3) ◽  
pp. 263-266 ◽  
Author(s):  
A. R. C. Jones ◽  
I. Alli
Keyword(s):  
Sap Flow ◽  
Sugar Maple ◽  
Sugar Content ◽  
Soluble Carbohydrates ◽  
Red Maple ◽  
White Birch ◽  
Yellow Birch ◽  
Total Carbohydrate ◽  
Total Carbohydrate Content ◽  
Maple Sap

During the spring of 1984 and 1985, white birch (Betulapapyrifera Marsh), sweet birch (B. lenta L), and yellow birch (B. alleghaniensis Britt.) were tapped to determine sap yields and syrup characteristics. These properties were compared with sap yields and syrup produced from sugar maple (Acersaccharum Marsh) and red maple (A. rubrum L). The sap flow seasons were as follows: white birch, 23 days (April 7–29, 1984) and 29 days (April 5 – May 3, 1985); sweet birch, 26 days (1984); yellow birch, 25 days (1985). The sap flow season for the maple species was much earlier than the birch species. Maple sap flow seasons were as follows: sugar maple, 16 days (March 28 – April 12, 1984) and 45 days (March 10 – April 23, 1985); red maple, 44 days (March 11 – April 23, 1985). Sap yields were as follows: white birch, 80.5 L in 1984 (1.0% sap) 51.0 L in 1985 (1.0% sap); sweet birch, 48.0 L in 1984 (0.5% sap); yellow birch, 28.4 L in 1985 (0.5% sap); red maple, 30.6 L in 1985 (2.3% sap); sugar maple, 53.5 L in 1985 (4.5% sap). Sap analyses showed the average total carbohydrate content of all birch saps and all maple saps was 9.2 and 24.5 g/L, respectively. The average sugar contents of the syrups from the birch saps and the maple saps were 302 and 711 g/L, respectively. The average pH of birch and maple saps were similar but the average pH of the syrups obtained from the birch saps was substantially lower than that of the syrups obtained from the maple saps.

scholarly journals Tolerant hardwood natural regeneration 15 years after various silvicultural treatments on an industrial freehold of northwestern New Brunswick

2013 ◽  
Vol 89 (04) ◽  
pp. 512-524 ◽  
Author(s):  
Martin Béland ◽  
Bruno Chicoine
Keyword(s):  
New Brunswick ◽  
Natural Regeneration ◽  
Sugar Maple ◽  
Mineral Soil ◽  
Soil Disturbance ◽  
Betula Alleghaniensis ◽  
Yellow Birch ◽  
American Beech ◽  
Partial Cutting ◽  
Selection Cutting

We examined applicability of various partial cutting systems in order to regenerate tolerant hardwood stands dominated by sugar maple (Acer saccarhum), American beech (Fagus grandifolia) and yellow birch (Betula alleghaniensis) on northern New Brunswick J.D. Irving Ltd. freehold land. Sampling of 1065 one-m2 plots in 31 stands managed by selection cutting, shelterwood method and strip or patch cutting and in six control stands allowed a 15-year retrospective study of natural regeneration in stands of low residual densities and with minimal soil disturbance and no control of competing vegetation. Beech regeneration was most abundant in the patch cuts, yellow birch in shelterwood stands and sugar maple in the selection system areas. Results suggest that initial stand conditions influence the composition of the regeneration more than the prescribed treatment. At the stand scale (a few hectares), sugar maple recruitment was positively influenced by its proportion in the initial stand, and negatively by the cover of herbs and shrubs. Yellow birch regeneration was mainly affected by shrub competition. At the plot (1 m2) scale, mineral soil and decayed wood substrates and ground-level transmitted light were determinant factors for yellow birch regeneration. Beech-dominated stands were likely to regenerate to beech. A dense beech sucker understory was promoted in harvested patches. Areas with dense understory of American beech, shrubs, or herbs require site preparation to reduce interference either before or at the time of partial cutting. Shelterwood seed cutting and selection cutting should leave a residual of 12 m2/ha and 17 m2/ha respectively in seed trees uniformly distributed.

scholarly journals Effects of Mechanical Site Preparation on the Abundance and Diversity of Ground-Layer Vegetation in Adirondack Northern Hardwood Stands

2007 ◽  
Vol 24 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Jodi A. Forrester ◽  
Kimberly K. Bohn
Keyword(s):  
Acer Saccharum ◽  
Sugar Maple ◽  
Woody Species ◽  
Site Preparation ◽  
Fagus Grandifolia ◽  
Ground Layer ◽  
American Beech ◽  
Mechanical Site Preparation ◽  
Northern Hardwood ◽  
Fern Species

Abstract Forest management in northern hardwoods benefits from the use of site preparation treatments when the amount of American beech (Fagus grandifolia Ehrh.) and fern species in the understory interferes with regeneration of more desirable species, e.g., sugar maple (Acer saccharum Marshall). We assessed the cover and diversity of herbaceous and woody species in the ground layer of three Adirondack northern hardwood stands before and 3 years after a mechanical site preparation that removed all trees less than 14 cm with a brush saw. The treatment significantly increased the cover of all species cumulatively, with herbaceous, shrub, and arborescent species increasing significantly more in treated plots than in untreated plots. Sugar maple cover increased more in treated plots than in untreated plots, although American beech did as well. Species richness increased significantly more in treated plots than in untreated plots, but differences in diversity and evenness were not significantly different because of treatment after 3 years. Multivariate analysis indicated only minor changes in the plant community composition. Results show that mechanical site preparation techniques are a viable option for promoting abundance and maintaining diversity of the ground-layer vegetation in northern hardwood forests.

22-Year Growth of Four Planted Hardwoods

1986 ◽  
Vol 3 (2) ◽  
pp. 69-72 ◽  
Author(s):  
Susan Laurane Stout
Keyword(s):  
Sugar Maple ◽  
Black Cherry ◽  
Red Maple ◽  
Old Field ◽  
Forest Landowners ◽  
Northern Hardwood ◽  
White Ash ◽  
Hardwood Species ◽  
Initial Spacing ◽  
Preferred Species

Abstract Planting of northern hardwood species interests forest landowners and managers who wish to continue growing pure or nearly pure stands of high-value species, enhance old-field conversion to preferred species, or reforest areas where natural regeneration has failed. Little data on planted hardwoods can be found, however. This paper reports on 22 years of growth of a northern hardwood plantation established in 1961 containing red maple, black cherry, sugar maple, and white ash. The data show that plantings of these species can succeed on good sites with weed control over the first few years, protection from animal predators, and close initial spacing. North. J. Appl. For. 3:69-72, June 1986.

scholarly journals Radial growth of hardwoods following the 1998 ice storm in New Hampshire and Maine

2003 ◽  
Vol 33 (2) ◽  
pp. 325-329 ◽  
Author(s):  
Kevin T Smith ◽  
Walter C Shortle
Keyword(s):  
Radial Growth ◽  
Sugar Maple ◽  
Growth Index ◽  
Ice Storm ◽  
Red Maple ◽  
Yellow Birch ◽  
Annual Increment ◽  
White Ash ◽  
Class A ◽  
Mean Annual Increment

Ice storms and resulting injury to tree crowns occur frequently in North America. Reaction of land managers to injury caused by the regional ice storm of January 1998 had the potential to accelerate the harvesting of northern hardwoods due to concern about the future loss of wood production by injured trees. To assess the effect of this storm on radial stem growth, increment cores were collected from northern hardwood trees categorized by crown injury classes. For a total of 347 surviving canopy dominant and subdominant trees, a radial growth index was calculated (mean annual increment for 1998–2000 divided by the mean annual increment for 1995–1997). Sugar maple (Acer saccharum Marsh.), yellow birch (Betula alleghaniensis Britt.), white ash (Fraxinus americana L.), and red maple (Acer rubrum L.) categorized in injury class A (crown loss of less than one-half) had mean growth index values of approximately 1.0, indicating no loss of mean radial growth after 3 years. For injury class B (crown loss of one-half to three-quarters) and class C (crown loss greater than three-quarters), growth index values significantly decreased for sugar maple, yellow birch, and red maple. For white ash, growth index values of classes B and C were not significantly different from those of class A trees. Growth index values of A. saccharum and A. rubrum in injury class C were the lowest of those measured. These results indicated that the severity of growth loss due to crown injury depends on tree species and crown replacement as well as the extent of crown loss.

Effects of clear-cutting on the vegetation and soil of an eastern hemlock dominated ecosystem, western Upper Michigan

1984 ◽  
Vol 14 (6) ◽  
pp. 914-923 ◽  
Author(s):  
David M. Hix ◽  
Burton V. Barnes
Keyword(s):  
Sugar Maple ◽  
Mineral Soil ◽  
Mixed Forest ◽  
Ground Cover ◽  
Eastern Hemlock ◽  
Red Maple ◽  
Nutrient Contents ◽  
Clear Cut ◽  
Clear Cutting ◽  
Recreation Area

The effects of clear-cutting on the vegetation and soil of an ecosystem dominated by eastern hemlock (Tsugacanadensis (L.) Carr.) were studied at four locations along the boundaries of the Sylvania Recreation Area (Ottawa National Forest) in western Upper Michigan, U.S.A. The position of commercially clear-cut areas along the boundaries of the relatively undisturbed 8500-ha tract provided the opportunity to examine the probable effects of clear-cutting after an average of 46 years afterward. Clear-cutting resulted in the virtual elimination of hemlock from the overstory; it was replaced by a mixed forest of red maple (Acerrubrum L.), yellow birch (Betulaalleghaniensis Britt.), sugar maple (Acersaccharum Marsh.), and balsam fir (Abiesbalsamea L.). The ecological species groups characteristic of the ground cover of the uncut plots were not substantially different from the groups now present on the clear-cut plots. The thickness, mass, and nutrient (K+, Mg2+, Ca2+) contents of the forest floor decreased significantly, and the acidity and nutrient contents of the upper mineral soil increased slightly. The replacement of hemlock by hardwoods has slowly decreased the acidity and apparently increased the rate of nutrient cycling. It appears that without major disturbance, such as fire, hemlock is not likely to regain dominance following clear-cutting owing to failure to regenerate naturally.

scholarly journals Ten-Year Response of Sugar Maple–Yellow Birch–Beech Stands to Selection Cutting in Québec

2001 ◽  
Vol 18 (4) ◽  
pp. 119-126 ◽  
Author(s):  
Steve Bédard ◽  
Zoran Majcen
Keyword(s):  
Growth Rate ◽  
Sugar Maple ◽  
Annual Growth Rate ◽  
Yellow Birch ◽  
American Beech ◽  
Selection Cutting ◽  
Breast Height ◽  
Single Tree Selection ◽  
And Control ◽  
Annual Mortality

Abstract Experimental blocks were established in five regions of southern Québec to determine the response of hardwood stands to selection cutting. The blocks contain five control stands (no cut) and five treated stands, composed mainly of sugar maple in association with yellow birch and American beech. Treated stands were harvested using single tree selection to a residual density varying from 16.8 to 21.2 m2. Results obtained 10 yr after treatment demonstrate that the annual gross growth rate was not significantly different between treated and control stands. However, net annual growth rate was higher in four out of five cut stands, because the annual mortality rate was less in these stands than in controls. Cutting significantly enhanced the growth of stems with an initial diameter at breast height (dbh) of 10 to 28 cm and favored the development of sugar maple saplings in all blocks and yellow birch saplings in three blocks. North. J. Appl. For. 18(4):119–126.

Sign in / Sign up

Export Citation Format

Share Document