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Meta-Modelling to Quantify Yields of White Spruce and Hybrid Spruce Provenances in the Canadian Boreal Forest?
tree improvement growth and yield climatic transfer distances meta-model random-coefficients modelling
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2024/1/23
Tree improvement programs can improve forest management by increasing timber yields in some areas, thereby facilitating conservation of other forest lands. In this study, we used a meta-analytic appro...
Allometric Equations for Estimating Biomass and Carbon Stocks in Afforested Open Woodlands with Black Spruce and Jack Pine, in the Eastern Canadian Boreal Forest
allometric equations black spruce jack pine boreal forest open woodland afforestation carbon sequestration
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2024/1/12
Allometric equations use easily measurable biometric variables to determine the aboveground and belowground biomasses of trees. Equations produced for estimating the biomass within Canadian forests at...
Using TLS-Measured Tree Attributes to Estimate above Ground Biomass in Small Black Spruce Trees
terrestrial laser scanning biomass black spruce allometric equations
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2023/12/8
Research Highlights: This study advances the effort to accurately estimate the biomass of trees in peatlands, which cover 13% of Canada’s land surface. Background and Objectives: Trees remove carbon f...
Climate Effects on Black Spruce and Trembling Aspen Productivity in Natural Origin Mixed Stands
dynamic models height growth functions mixed effects models biotic and edaphic effects climate change site productivity
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2023/12/6
Forest managers need site productivity estimates for tree species growing in mixed stands. Models developed in the past are generally for pure stands and don’t factor in the effects of climate change ...
Structural Features of a Post-Clear-Cutting Ecotone between 90-Year-Old Bilberry Spruce Forest and 35-Year-Old Herbs-Forbs Deciduous Stand
ecotone complex bilberry-type spruce forest deciduous stand clear-cut edge effect ground vegetation epiphytes tree fine root biomass
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2023/12/1
In a natural regeneration process, a community dominated by birch and aspen forms in the site 35 years after a bilberry-type spruce stand is logged down. The newly formed ecotone complex consists of f...
Differential Trends of Qinghai Spruce Growth with Elevation in Northwestern China during the Recent Warming Hiatus
Qinghai spruce warming hiatus elevation gradient tree growth growth-climate relationships
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2024/3/4
Tree growth strongly responds to climate change, especially in semiarid mountainous areas. In recent decades, China has experienced dramatic climate warming; however, after 2000 the warming trend subs...
Effects of Mechanical Site Preparation on Microsite Availability and Growth of Planted Black Spruce in Canadian Paludified Forests
mechanical site preparation microsite reforestation productivity competition
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2024/3/5
Low productivity caused by paludification in some parts of the closed black spruce (Picea mariana (Mill.) B.S.P) dominated boreal forest threatens the provision of ecosystem services, including wood f...
Modelling individual tree diameter growth for Norway spruce in the Czech Republic using a generalized algebraic difference approach
base-age invariant approach Chapman-Richards function global parameters tree-specific parameters iterative nested regression National Forest Inventory
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2017/6/26
Individual tree-based growth models precisely describe the growth of individual trees irrespective of stand complexity. These models are more useful than the stand-based growth models for effective ma...
Multivariate analysis for assessment of the tree populations based on dendrometric data with an example of similarity among Norway spruce subpopulations
dendrometry hierarchical classification ordination Picea abies
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2018/3/6
The new method for evaluation of tree populations presented here is based on a correlation analysis within a set of
dendrometric variables. The correlation analysis is carried out for each population...
The influence of evaporated pheromone upon the trapping of the spruce bark beetle – Ips typographus (L.) (Coleoptera: Curculionidae: Scolytinae) – Short communication
pheromone trap pheromone dispenser increased efficacy forest protection
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2017/4/6
This article examines the relative efficacy of releasing a larger pheromone plume volume and the relative efficacy of the number of pheromone dispensers within baited traps in trapping the spruce bark...
Production and soil restoration effect of pioneer tree species in a region of allochthonous Norway spruce dieback
forest transformation regeneration methods birch aspen wood production soil chemistry
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2017/4/6
The paper analyses the growth, structure, production and soil chemistry of different tree species stands 20 years after allochthonous spruce dieback. The experiment was carried out at lower altitudes ...
Below-canopy and topsoil temperatures in young Norway spruce and Carpathian birch stands compared to gaps in the mountains
air soil below-canopy climate microclimate stand environment
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2016/11/11
Reduced air pollution load has allowed to use commercially oriented forestry in the Central European mountains since the 1990s. The goal is, however, to restore species- and age-diversified stable sta...
Effect of Bio-Algeen preparation on growth and mycorrhizal characteristics of Norway spruce seedlings
Ascophyllum nodosum ectomycorrhiza nurseries Picea abies seaweed
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2016/7/6
In this paper, the effect of the Bio-Algeen® product (bio-alginate from the seaweed Ascophyllum nodosum (Linnaeus) Le Jolis) was evaluated in relation to basic mycorrhizal and growth characterist...
Comparison of Myriapoda in beech and spruce forests
Chilopoda Diplopoda Isopoda Norway spruce Beskydy Mts
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2015/8/14
Pitfall traps were used to capture 3,550 individuals and 34 species of Myriapoda in five pairs of Norway
spruce and beech stands in the Moravskoslezské Beskydy Mts. (Czech Republic). Diff...
Intra-annual patterns of weather and daily radial growth changes of Norway spruce and their relationship in the Western Carpathian mountain region over a period of 2008–2012
dendrometers Picea abies environmental fluctuation Western Beskids stem circumference changes
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2015/8/14
The contribution presents the results of a 5-year (2008–2012) dendroecological research in a Norway spruce
(Picea abies [L.] Karst.) clone forest (Northern Slovakia). Due to different climatic and s...