Nonstructural carbohydrate reserves support tree metabolism and growth when current photosynthates are insufficient, offering resilience in times of stress. We monitored stemwood nonstructural carbohydrate (starch and sugars) concentrations of the dominant tree species at three sites in the northeastern United States. We estimated the mean age of the starch and sugars in a subset of trees using...

This study aimed to identify and quantify phenolic resin acid extractive compounds in Scots pine stemwood sawmill residues four climatic regions of Finland evaluate their most optimal sources for bio-based chemical biorefining bioenergy products. The sample consisted 140 trees from 28 stands, sawdust lots 11 log stands. NMR the overall analysis HPLC quantitative estimation were employed. Correl...

The structure of forests has changed with an increase in soft-wooded broadleaved species over the past decade. demand for hard-wooded can be met by replacing them compressed wood species. Existing technologies do not fully take into account density variations that exist along height a tree trunk. In this study, we examined variability birch and aspen microstructures trunk, including vessels per...

Abstract The increased demand for wood to replace oil-based products with renewable has lifted focus the Baltic Sea region where environment is favorable woody biomass growth. aim of this study was estimate broad-sense heritabilities and genotype-by-environment (G×E) interactions in growth phenology traits six climatically different regions Sweden Baltics. We tested hypothesis that both bud bur...

Tilia amurensis Rupr. and mandshurica Maxim. are two essential commercial species, though there is surprisingly little concern about whether their branches can be used in the current situation of a wood shortage China. In this study, tissue proportions fiber morphology, physical mechanical properties, chemical composition branchwood were studied compared with stemwood to evaluate potential for ...

The relative productivity of even-aged and uneven-aged or multiaged stands is a frequently debated topic in silviculture and forestry. Nearly all previous comparisons have been empirical growth studies, simulations of stand growth, or economic analyses based on differences in stem volume production. Both even-aged and multiaged systems are highly variable and the large number of variables and a...

We studied the ecological characteristics of 45–50-yr-old subtropical dry forest stands in Puerto Rico that were growing on sites that had been deforested and used intensively for up to 128 yr. The study took place in the Guánica Commonwealth Forest. Our objective was to assess the long-term effects of previous land use on this forest—i.e., its species composition, structure, and functioning. P...

Slash,lobloUy,lonaieaf, and shortleafpines in northern Louisiana were examined for differences in moisture content (MC) and basic specific gravity (SO) of wood and bark in the complete tree, root, stem, and branches and differences in diameter at breast height (dbh), total height, and taproot length of trees in even-aged plantations under identical site conditions, planting densities, and manag...