This paper presents a short-term analysis of recent timber trends in China, focusing on timber markets and trade, and on forest-related policies. Firstly, trends in China’s timber supply and demand are described highlighting the sharp increase in log imports, especially from Russia. Secondly, the key policy trends that have a#ected China’s domestic timber market, including trade policy, forest ...

Wood density (WD) is not only an important parameter to estimate aboveground biomass but also an indicator of timber quality and plant adaptation strategies to stressful conditions (i.e., windthrow, pests, and pathogens). This study had three objectives: (1) to compare WD among seven subtropical tree species; (2) to determine how tree growth traits may influence possible differences in WD betwe...

Dynamic game theory is applied to analyze the timber market in northern Iran as a duopsony. The Nash equilibrium and the dynamic properties of the system based on marginal adjustments are determined. When timber is sold, the different mills use mixed strategies to give sealed bids. It is found that the decision probability combination of the different mills follow a special form of attractor an...

-I investigated spatial characteristics of Red-cockaded Woodpecker (Picoides borealis) cluster sites in the Raven Ranger District of the Sam Houston National Forest, Texas. Active cluster sites were larger and closer to other active clusters than inactive ones and had larger gravity interaction values. Inactive sites were significantly more isolated than were active clusters, they were more lik...

An econometric model of the US softwood lumber and timber markets is estimated and used to simulate the price, trade, and welfare effects of reductions in federal timber sales in the western US commencing in the late 1980s. Results indicate that the timber sale reductions increased lumber prices by roughly 15 percent in the mid-1990s. Lumber consumers were the unambiguous losers from the policy...

Historical information on forest growth is essential to evaluate and understand change in managed and unmanaged forests. Two ground-truth nondestructive sources of information on interannual to interdecadal changes are (a) repeated timber inventories and (b) tree-ring chronologies. I present here a case study of how those two types of data can complement and benefit each other. At the Gus Pears...

Largest branch diameter in the breast-height region (LLBH) and acoustic velocity on lower bole were measured on trees in a 20-year-old Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) experiment comparing seven density management/fertiliser regimes. The less dense regimes tended to have larger mean branch diameter at breast height, with fertiliser increasing the mean even further. However, ex...

A sample of 78 Pinus radiata D. Don logs was measured and sawn to maximise yields of 100 x 50-mm and 200 x 50-mm timber. The average bending strength and stiffness of the timber were found to depend on the basic density of the log but the lower fifth-percentile strength was more dependent on branch index. For the 28-year-old stand sampled, logs with a low branch index yielded 100 x 50-mm timber...

Eco-certified forestry (ECF) is defined as forest management that incorporates ecological concerns into commercial timber production. In this paper, we link the adoption of ECF practices to shifts in the timber supply function. We use a spatially disaggregated model of southeastern US timber supply to simulate the empirical relationship between variations in the price premium offered for timber...