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You searched for: Journal Canadian journal of forest research = Remove constraint Journal: Canadian journal of forest research = Publication Year 2016 Remove constraint Publication Year: 2016 Source 2016 v.46 no.7 Remove constraint Source: 2016 v.46 no.7
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1. Methods for evaluating the utilities of local and global maps for increasing the precision of estimates of subtropical forest area

Author:
McRoberts, Ronald E.; Vibrans, Alexander C.; Sannier, Christophe; Næsset, Erik; Hansen, Matthew C.; Walters, Brian F.; Lingner, Débora V.
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 924-932
ISSN:
1208-6037
Subject:
case studies; forests; Brazil
Abstract:
... For a study area in the Brazilian state of Santa Catarina, the utilities of local and global forest maps in combination with poststratified and model-assisted estimators for increasing the precision of estimates of forest area were compared. Auxiliary information was in the form of local maps, the recent Global Forest Change map, and combinations of these maps. The poststratified estimators produc ...
DOI:
10.1139/cjfr-2016-0064

2. Seventy years of forest growth and community dynamics in an undisturbed northern hardwood forest

Author:
Pontius, Jennifer; Halman, Joshua M.; Schaberg, Paul G.
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 959-967
ISSN:
1208-6037
Subject:
Abies balsamea; Acer saccharum subsp. saccharum; Picea rubens; acid deposition; anthropogenic activities; biomass; climate change; forest growth; forest inventory; hardwood; hardwood forests; models; New Hampshire
Abstract:
... Long-term forest inventories provide a unique opportunity to quantify changes in forest structure and evaluate how changes compare with current stand development models. An examination of a 70 year record at the Bartlett Experimental Forest, New Hampshire, indicated that although species abundances have primarily changed as expected under natural succession, some unexpected results were also detec ...
DOI:
10.1139/cjfr-2015-0304

3. Welfare impacts of the 2006 United States – Canada Softwood Lumber Agreement

Author:
Parajuli, Rajan; Zhang, Daowei
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 950-958
ISSN:
1208-6037
Subject:
exports; imports; lumber; markets; models; softwood; taxes; Canada; United States
Abstract:
... In this paper, we evaluate the market and welfare effects of the 2006 United States (U.S.) – Canada Softwood Lumber Agreement (SLA 2006) based on a U.S. import demand model for Canadian softwood lumber. We find that SLA 2006 reduces the U.S. lumber imports from Canada by 7.78% in the months when export taxes took effect. The welfare analysis based on a partial equilibrium framework shows that U.S. ...
DOI:
10.1139/cjfr-2016-0141

4. Tree light capture and spatial variability of understory light increase with species mixing and tree size heterogeneity

Author:
Ligot, Gauthier; Ameztegui, Aitor; Courbaud, Benoît; Coll, Lluís; Kneeshaw, Dan
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 968-977
ISSN:
1208-6037
Subject:
canopy; covariance; forest ecosystems; forest stands; forests; mixing; models; natural regeneration; overstory; transmittance; trees; understory; wood
Abstract:
... Mixed and multi-layered forest ecosystems are sometimes more productive than monospecific and single-layered ones. It has been suggested that trees of different species and sizes occupy complementary positions in space, which would act as a mechanism to increase canopy light interception and wood production. However, greater canopy light interception reduces the average amount and variability of t ...
DOI:
10.1139/cjfr-2016-0061

5. Modelling the variability of density and bending properties of Norway spruce structural timber

Author:
Fischer, Carolin; Vestøl, Geir I.; Høibø, Olav
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 978-985
ISSN:
1208-6037
Subject:
Picea abies; bending strength; forest inventory; forest resources; forest stands; latitude; models; modulus of elasticity; prediction; sawing; silviculture; site index; tree and stand measurements; trees; variance; Norway
Abstract:
... Density, modulus of elasticity (MOE), and bending strength (MOR) are important properties of structural timber, and knowledge about the variability of these properties is important to make efficient use of the timber. To utilize such information in the production of structural timber, the information must be available before sawing. This study presents models describing the variability of density ...
DOI:
10.1139/cjfr-2016-0022

6. Long-term compositional changes following partial disturbance revealed by the resurvey of logging concession limits in the northern temperate forest of eastern Canada

Author:
Danneyrolles, Victor; Arseneault, Dominique; Bergeron, Yves
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 943-949
ISSN:
1208-6037
Subject:
Abies balsamea; Betula alleghaniensis; Choristoneura fumiferana; Pinus strobus; Thuja occidentalis; conifers; cutting; land use change; landscapes; logging; shade tolerance; temperate forests; Quebec
Abstract:
... Land use changes that are linked to European settlement of North America have transformed northeastern temperate forest landscapes. Many studies report a regional increase of young early-successional forests due to high disturbance rates since the preindustrial era (fire, land clearing, and clear-cuts). In this study, we document specific compositional changes to present-day mature forest landscap ...
DOI:
10.1139/cjfr-2016-0047

7. Extensive forest management contributes to maintain suitable habitat characteristics for the endangered Atlantic-Gaspésie caribou

Author:
Nadeau Fortin, Marie-Audrey; Sirois, Luc; St-Laurent, Martin-Hugues
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 933-942
ISSN:
1208-6037
Subject:
Alces alces; Canis latrans; Rangifer tarandus; Ursidae; biomass; browsing; coniferous forests; correspondence analysis; endangered species; forest management; forest stands; habitats; lichens; predators; small fruits
Abstract:
... Extensive forest management aims at minimizing differences between managed and natural forests and at contributing to the conservation of endangered species such as the Atlantic-Gaspésie caribou. The decline of this isolated population was exacerbated by intensive forest practices, as the over-representation of regenerating forests supports high densities of bears and coyotes. These predators sele ...
DOI:
10.1139/cjfr-2016-0038

8. Using silvicultural practices to regulate competition, resource availability, and growing conditions for Pinus palustris seedlings underplanted in Pinus taeda forests

Author:
Knapp, Benjamin O.; Wang, G. Geoff; Walker, Joan L.; Hu, Huifeng
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 902-913
ISSN:
1208-6037
Subject:
Pinus palustris; Pinus taeda; canopy; clearcutting; forest litter; forests; harvesting; herbicides; highlands; managers; nitrogen; phosphorus; potassium; seedling growth; seedlings; silvicultural practices; soil water; transmittance; trees; understory; Southeastern United States
Abstract:
... In the southeastern United States, many forest managers are interested in restoring longleaf pine (Pinus palustris Mill.) to upland sites that currently support loblolly pine (Pinus taeda L.). We quantified the effects of four canopy treatments (uncut Control; MedBA, harvest to 9 m²·ha⁻¹; LowBA, harvest to 5 m²·ha⁻¹; and Clearcut) and three cultural treatments (NT, no treatment; H, herbicide relea ...
DOI:
10.1139/cjfr-2016-0066

9. Optimality of continuous cover vs. clear-cut regimes in managing forest resources

Author:
Tahvonen, Olli; Rämö, Janne
Source:
Canadian journal of forest research = 2016 v.46 no.7 pp. 891-901
ISSN:
1208-6037
Subject:
Picea abies; artificial regeneration; even-aged management; forest resources; growth models; harvesting; seedlings; uneven-aged management
Abstract:
... Optimization models on continuous cover forestry are complicated and typically incompatible with rotation models. This dichotomy is theoretically unsatisfactory and makes the choice between clearcuts and continuous cover forestry vague. We present a theoretically sound and empirically detailed generalized setup with an optimal clear-cut regime (or even-aged management) and optimal continuous cover ...
DOI:
10.1139/cjfr-2015-0474