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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.

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Is Early Life Cycle Success a Determinant of the Abundance of Red Spruce and Balsam Fir?

Problem Addressed: Regeneration success during changing climates of the Holocene and after harvest

Goal(s)/Objective(s): To determine if early life stage behavior contributes to differences with changing climates and harvest

Key Findings: Seed germination by red spruce was equally fast and complete in warm and cool temperature regimes, while balsam fir germination was slower and less complete in both, especially in the cool regime

Downloads: 3

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Changes in landscape composition and stand structure from 1945–2002 on an industrial forest in New Brunswick, Canada

Problem Addressed: Changes in species composition, age-class distribution, stand structure

Goal(s)/Objective(s): Compare aspects of NB forest between 1945 and 2002

Key Findings: Forest management from 1945 to 2002 resulted in the forest (1) becoming younger, (2) becoming denser, and (3) having less balsam fir

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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CRSF Family Forest Program Overview 2015

Problem Addressed: Describes active research projects in the CRSF Family Forest Program

Goal(s)/Objective(s): Provide relevant research for current issues facing family forests: forest pests, timber harvesting, recreation access, intergenerational transfer, etc.

Key Findings: CRSF is actively engaged in research and outreach that benefits Maine's non-industrial private landowners (also called family forest or small woodland owners). Mainers owning small parcels of land (10-1,000 acres) comprise 34% of the forests in Maine.

Recommendation: N/A

Downloads: 3

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Long-term response of spruce–fir stands to herbicide and precommercial thinning: observed and projected growth, yield, and financial returns in central Maine, USA

Problem Addressed: Herbicide application, Precommercial thinning

Goal(s)/Objective(s): Long-term growth and yield responses to controlled PCT and herbicide experiments

Key Findings: Early investments in herbicide and PCT may lead to good financial returns

Downloads: 0

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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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