e s s t t D D i i s s t t r r i i c c t t s s F Fi ie el ld d r re ev vi ie ew w c ca ar rr ri ie ed d o ou ut t i in n S Se ep pt te em mb be er r a an nd d O Oc ct to ob be er r 2 Executive Summary High levels of residue or slash as a result of logging is not surprising in old growth forests, particularly BC coastal temperate rainforests. This review was carried out in response to concerns ex...

Seed dispersal by wind is a critical yet poorly understood process in tropical forest trees. How tree size and fecundity affect this process at the population level remains largely unknown because of insufficient replication across adults. We measured seed dispersal by the endangered neotropical timber species big-leaf mahogany (Swietenia macrophylla King, Meliaceae) in the Brazilian Amazon at ...

For many years the American chestnut [Castanea dentata (Marsh.) Borkh.] was one of the most prized trees in the eastern United States. It not only provided food and shelter for wildlife, but was highly valued by people. The American chestnut was a relatively fast growing, rot-resistant hardwood. The lumber was highly valued for building, and it provided a plentiful supply of sweet chestnuts tha...

The vast forests of the Pacific Northwest region of the United States, an area outlined by the states of Oregon, Washington, and Idaho, are well known for their rich diversity of macrofungi. The forests are dominated by trees in the Pinaceae with about 20 species in the genera Abies, Larix, Picea, Pinus, Pseudotsuga, and Tsuga. All form ectomycorrhizas with fungi in the Basidiomycota, Ascomycot...

Between A.D. 900 and 1150, more than 200,000 conifer trees were used to build the prehistoric great houses of Chaco Canyon, New Mexico, in what is now a treeless landscape. More than one-fifth of these timbers were spruce (Picea) or fir (Abies) that were hand-carried from isolated mountaintops 75-100 km away. Because strontium from local dust, water, and underlying bedrock is incorporated by tr...

Russian forest resources are important for global carbon cycling. In contrast to traditional analyses that focus on the harvest and direct use of Russian timber resources (a.k.a. production-based accounting), this study investigates how the consumption of nations drives Russian timber harvest (a.k.a. consumption-based accounting or the Russian timber footprint). China is the biggest direct impo...

The aim of this study was to show the possibility of the classification of structural timber (European spruce) into strength class C35 according to EN 338 by using combined visual and machine strength grading techniques. Three different visual machine strength grading combinations are devised for allocating sawn timber into strength class C35. They are composed on the one hand of the visual gra...

Interest in uneven-aged silviculture has increased since advent of ecosystem management programs, which place greater emphasis on ecological values and ecosystem services while also harvesting timber from the forest. However, traditional uneven-aged approaches (e.g., BDq) are often criticized as too complex, costly, and requiring highly-trained staff. The ProportionalB method (Pro-B) addresses ...

Bottomland hardwoods are among the most diverse and productive forest ecosystems in southeastern United States critically important for provision of timber non-timber ecosystem services. Red oaks, dominant species this group forests, high ecological economic value. Stem profile models essential accurately estimating merchantable volume oak trees, which is also closely indicative total tree biom...

Timber supplies from public native forests have declined significantly in recent decades. Consequently, wood processors are increasingly dependent on private land to maintain their throughput of native species logs. In some regions of Australia, more than 50 per cent of native forest industry log supply comes from private property. There is concern that this increased demand brings with it the ...