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Influence of management intensity on the productivity of early successional Acadian stands in eastern Maine

Problem Addressed: Response of early successional stands to management

Goal(s)/Objective(s): Document response of early successional stands to management inputs designed to shift species composition

Key Findings: After 7 years, yields of mixedwood treatments were greater than conifer release treatments; yields of hardwood thinning treatments were similar to the untreated control, but with lower densities.

Recommendation: Early successional stands can be effectively managed during early stand development to improve growth and the longer term composition

Downloads: 3

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Development and evaluation of aboveground small tree biomass models for naturally regenerated and planted species in eastern Maine, U.S.A.

Problem Addressed: Models for small tree biomass estimates in northeastern North America

Goal(s)/Objective(s): Evaluate additive aboveground component and biomass models for five naturally regenerated hardwood species.

Key Findings: Small tree biomass models currently used to predict woody biomass substantially underestimated biomass at the study site.

Recommendation: Current FAS models may be inadequate for providing reliable sapling biomass estimates in Maine, and new techniques should be developed.

Downloads: 4

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Efficiency of alternative forest inventory methods in partially harvested stands

Problem Addressed: Which inventory methods are best given the distinct spatial and structural heterogeneity in Maine forestlands.

Goal(s)/Objective(s): Compare horizontal point, fixed area, and horizontal line measurement methods in partially harvested stands across northern and central Maine.

Key Findings: Horizontal line sampling proved to be a viable method in post-partial harvest stand conditions.

Recommendation: There are trade-offs between precision and time costs involved in measurement methods under a range of heterogeneous stand conditions.

Downloads: 2

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Dynamics of coarse woody debris following gap harvesting in the Acadian forest of central Maine, U.S.A.

Problem Addressed: Dynamics of down coarse woody debris under an expanding-gap harvesting system

Goal(s)/Objective(s): To compare volume, biomass, diameter-class, and decay-class distributions of CWD in permanent plots before and 3 years after harvest and to determine wood density and moisture content by species and decay class

Key Findings: Both harvesting treatments increased the volume and biomass of non-decayed, small-diameter CWD although the trend is likely more complex because of the superimposition of small-scale natural disturbances and repeated silvicultural entries

Downloads: 2

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Effects of intensive forest management on stand and landscape characteristics in northern New Brunswick, Canada (1945–2027)

Problem Addressed: Landscape patterns and changes caused by harvesting and silviculture

Goal(s)/Objective(s): Evaluation of historical and future changes in species composition, age classes, and patch characteristics between 1945, 2002, and projections to 2027

Key Findings: Strong cumulative effect of forest management on landscape patterns, especially the socially mandated drive for smaller clearcuts resulting in the loss of large patches

Downloads: 3

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Logging Residue Volumes and Characteristics following Integrated Roundwood and Energy-Wood Whole-Tree Harvesting in Central Maine

Problem Addressed: Integrated roundwood and energy-wood whole-tree partial harvesting, biomass, coarse woody material, fine woody material

Goal(s)/Objective(s): Gain information on volume and characteristics of logging residues left behind on harvest sites

Downloads: 1

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Assessing Silviculture Research Priorities For Maine Using Wood Supply Analysis

Problem Addressed: Determining silviculture research priorities using wood supply analysis

Goal(s)/Objective(s): Identify the highest priorities for silviculture research in Maine

Key Findings: Suggested ranking of research priorities among the three silvicultural treatments examined was precommercial thinning > vegetation management > tree planting

Recommendation: Based on long-term wood supply impact, the highest silviculture research priorities should be on pre commercial thinning, vegetation management, and tree planting

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The role of vegetation management for enhancing productivity of the world’s forests

Problem Addressed: Influence of competing vegetation on regenerating forests

Goal(s)/Objective(s): Review results from longest-term studies in North America, South Africa, South America, and New Zealand/Australia.

Key Findings: About 25% of studies had volume gains from 100 - 200 per cent. Over half had 50 – 300% yield increases. Three-quarters showed yield gains from 30 - 500%

Recommendation: Managing competing vegetation in young forest stands produces large, early yield gains in forests around the world

Downloads: 5

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