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- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0064
- 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
-
http://dx.doi.org/10.1139/cjfr-2015-0304
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0141
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0061
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0022
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0047
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0038
- 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
-
http://dx.doi.org/10.1139/cjfr-2016-0066
- 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
-
http://dx.doi.org/10.1139/cjfr-2015-0474