Search Results - "SEYMOUR, Robert S"

Species differences in total and vertical distribution of branch- and tree-level leaf area for the five primary conifer species in Maine, USA by Weiskittel, Aaron R., Kershaw, John A., Hofmeyer, Philip V., Seymour, Robert S.

“…Vertical distribution of leaf area largely governs both tree structure and function. Models of this important tree attribute have been constructed for several…”
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Natural disturbance in an old-growth landscape of northern Maine, USA by Fraver, Shawn, White, Alan S., Seymour, Robert S.

“…1. Disturbance histories derived from old-growth forest remnants in Europe and eastern North America have shaped many of our current theories of forest…”
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Leaf Area and Structural Changes after Thinning in Even-Aged Picea rubens and Abies balsamea Stands in Maine, USA by DeRose, R. Justin, Seymour, Robert S.

“…We tested the hypothesis that changes in leaf area index (LAI m2 m−2) and mean stand diameter following thinning are due to thinning type and residual density…”
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Sixty Years of Silviculture in a Northern Conifer Forest in Maine, USA by Rogers, Nicole S, Kenefic, Laura S, Crandall, Mindy S, Seymour, Robert S, Sendak, Paul E

“…Abstract In 1950, the US Forest Service initiated a cutting practice level (CPL) study on the Penobscot Experimental Forest in Maine on the basis of findings…”
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First decadal response to treatment in a disturbance-based silviculture experiment in Maine by Arseneault, Justin E., Saunders, Mike R., Seymour, Robert S., Wagner, Robert G.

“…► Regeneration response of two gap-based harvest systems was similar after a decade. ► Overstory growth and sapling recruitment was higher in gap than intact…”
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Regional Stem Taper Equations for Eleven Conifer Species in the Acadian Region of North America: Development and Assessment by Li, Rongxia, Weiskittel, Aaron, Dick, Adam R., Kershaw, John A., Seymour, Robert S.

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Natural disturbance regimes in northeastern North America—evaluating silvicultural systems using natural scales and frequencies by Seymour, Robert S, White, Alan S, deMaynadier, Philip G

“…Many scientists and foresters have begun to embrace an ecological, natural disturbance paradigm for management, but lack specific guidance on how to design…”
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Impact of Whole-Tree and Cut-to-Length Harvesting on Postharvest Condition and Logging Costs for Early Commercial Thinning in Maine by Benjamin, Jeffrey G., Seymour, Robert S., Meacham, Emily, Wilson, Jeremy

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Long-Term Thinning Effects on the Leaf Area of Pinus strobus L. as Estimated from Litterfall and Individual-Tree Allometric Models by Guiterman, Christopher H, Seymour, Robert S, Weiskittel, Aaron R

“…Canopy leaf area index (LAI) is important for predicting stand growth response to silviculture, but it is difficult to quantify because of high variability,…”
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Modelling primary branch frequency and size for five conifer species in Maine, USA by Weiskittel, Aaron R., Seymour, Robert S., Hofmeyer, Philip V., Kershaw, John A.

“…Quantitative models of crown structure have been developed for several conifer species, but these studies have rarely simultaneously fit the models across…”
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Disturbance history and stand dynamics in secondary and old-growth forests of the Southern Appalachian Mountains, USA by Butler, Sarah M, White, Alan S, Elliott, Katherine J, Seymour, Robert S

“…Understanding the patterns of past disturbance allows further insight into the complex composition, structure, and function of current and future forests,…”
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Long-term effects of precommercial thinning on the stem dimensions, form and branch characteristics of red spruce and balsam fir crop trees in Maine, USA by Weiskittel, Aaron R, Kenefic, Laura S, Seymour, Robert S, Phillips, Leah M

“…The effects of precommercial thinning (PCT) on stem dimensions, form, volume, and branch attributes of red spruce [Picea rubens Sarg.] and balsam fir [Abies…”
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Northern White-Cedar Ecology and Silviculture in the Northeastern United States and Southeastern Canada: A Synthesis of Knowledge by Hofmeyer, Philip V, Kenefic, Laura S, Seymour, Robert S

“…Sustainability of the northern white-cedar (Thuja occidentalis L.) resource is a concern in many regions throughout its range because of regeneration failures,…”
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Historical Stem Development of Northern White-Cedar (Thuja occidentalis L.) in Maine by Hofmeyer, Philip V., Kenefic, Laura S., Seymour, Robert S.

“…We used stem analysis to quantify early height and diameter growth rates of 80 northern white-cedar trees (17.4‐55.0 cm dbh) harvested in 2005 and 2006 in…”
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Influences of Conventional and Low-Density Thinning on the Lower Bole Taper and Volume Growth of Eastern White Pine by Guiterman, Christopher H., Weiskittel, Aaron R., Seymour, Robert S.

“…Throughout the northeastern United States, thinning is a common management practice in stands of eastern white pine (Pinus strobus L.), but foresters lack…”
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Recent Changes to the Northeast Variant of the Forest Vegetation Simulator and Some Basic Strategies for Improving Model Outputs by Ray, David G, Saunders, Mike R, Seymour, Robert S

“…The northeast variant of the Forest Vegetation Simulator (FVS-NE) produces output that is of considerable use to forest managers in the northeastern United…”
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Low-density management of white pine crop trees: a primer and early research results by Seymour, R.S

“…Growing white pines at low density after pruning appears to offer many advantages over more conventional silvicultural systems. This article describes how to…”
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Mitigating climate change with managed forests: Balancing expectations, opportunity, and risk by Ray, David G, Seymour, Robert S, Scott, Neal A, Keeton, William S

“…Holistic assessments of forest management scenarios incorporating product life cycles (i.e., carbon stored in wood products and landfills and biomass energy)…”
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Decaying wood and tree regeneration in the Acadian Forest of Maine, USA by Weaver, Jamie K., Kenefic, Laura S., Seymour, Robert S., Brissette, John C.

“…We examined the effect of management history on the availability of decayed downed wood and the use of downed wood as a regeneration substrate in mixed-species…”
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Influence of Soil Site Class on Growth and Decay of Northern White-Cedar and Two Associates in Maine by Hofmeyer, Philip V, Seymour, Robert S, Kenefic, Laura S

“…Basal area growth of outwardly sound northern white-cedar (Thuja occidentalis L.) was compared with that of balsam fir (Abies balsamea [L.] Mill.) and red…”
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