The data of Lloyd (1971) on the 'chosen tree' and 'chosen seedlings' in 5607 4 x 4 m plots in Russell forest are analysed using a simple transition matrix model. The most realistic analysis predicts little change in relative species composition, other than a slight increase in the softwoods. The virtue of the approach lies more in the questions it raises than in the predictions obtained. Before...

This study investigates the supply and demand structure of the hardwood stumpage market in the South Central United States for the period 1981-1996. Three stage least squares regression is used to estimate parameters in a simultaneous equations model of pulpwood and sawtimber stumpage markets for mixed hardwoods, oak, and total hardwoods. Stumpage prices are generally non-significant. Hardwood ...

The embedment strength performance of the self-tapping screw (STS) connector, used as a cross-laminated timber fastener, was evaluated considering tree species’ density and load direction parameters. STS had diameter 8, 10, 12 mm. Considering characteristics STS, threaded area shank were compared. A larger resulted in higher yield all directions respective wood. effective can estimate more accu...

Cell walls, which constitute the bulk of plant biomass, vary considerably in their structure, composition, and architecture. Studies on plant cell walls can be conducted on both native and pre-treated plant biomass samples, allowing an enhanced understanding of these structural and compositional variations. Here glycome profiling was employed to determine the relative abundance of matrix polysa...

Woods are customarily divided into two types: hardwood and softwood. Softwoods are generally conifers (pine, fir, spruce, cedar, etc.) and hardwoods come from deciduous trees (oak, beech, ash, silver birch, etc.) and from certain tropical species (mahogany, teak, etc.). This distinction is purely botanical, softwoods corresponding to the gymnosperms and hardwoods to the angiosperms, and certain...

Cell walls, which constitute the bulk of plant biomass, vary considerably in their structure, composition, and architecture. Studies on plant cell walls can be conducted on both native and pre-treated plant biomass samples, allowing an enhanced understanding of these structural and compositional variations. Here glycome profiling was employed to determine the relative abundance of matrix polysa...

Understanding the macroscopic structure of wood and its formation is essential to identifying evaluating properties quality. Depending on genetic background, environmental conditions, tree developmental stage, can vary greatly produce specific signatures. Here, a comprehensive outline wood’s features that be used identify by examination presented. The planes observations are first depicted, fun...