نتایج جستجو برای: stemwood
تعداد نتایج: 77 فیلتر نتایج به سال:
Predictive crown fuel consumption models were developed using empirical data from experimental burning projects. Crown load for foliage, bark, branchwood and stemwood calculated live overstorey understorey trees in each plot nationally derived tree biomass algorithms. Standing dead similarly calculated. bulk density values all non-stemwood components. Factors that affect the initiation spread o...
machinability. Abstract Flakes 3 Inches along the grain. 3/8-inch wide, and 0.02 inch thick were machined from the taproots (with 6inch-high stump) and second logs at eight 31-year-old slash pines. Specific gravity (O.D. weight, green volume) of Items averaged 0.52; rootwood averaged 0.43 and decreased sharply with depth below ground. Forty-four-lb./cu. ft. structural-type particleboards were p...
Selecting suitable clones and regulating nutrients for Eucalyptus plantation are a key management practice improving productivity nutrient use. Therefore, this study evaluated growth performance, above-ground biomass, content (nitrogen, phosphorus, potassium, calcium, magnesium) use efficiency (NUE) of ten Clones three sites in Leizhou Peninsula. The present showed significant genetic variation...
We present the results of a study on climate forcing effects replacing coal for power generation in United Kingdom (UK) with wood pellets produced northern Ontario, Canada. Continuous pellet production from two biomass sources were considered: fiber increased harvesting standing live trees (stemwood scenario) and harvest residue provided by ongoing operations (residue scenario). In both scenari...
The objectives of this study were to examine the effects of stand development and soil nutrient supply on processes affecting the productivity of loblolly pine (Pinus taeda L.) over a period approximately equal to a pulpwood rotation (18 years). The experiment consisted of a 2 x 2 factorial combination of complete and sustained weed control and annual fertilization treatments (C: control treatm...
As increasing levels of nitrogen (N) deposition impact many terrestrial ecosystems, understanding the potential effects of higher N availability is critical for forecasting tree carbon allocation patterns and thus future forest productivity. Most regional estimates of forest biomass apply allometric equations, with parameters estimated from a limited number of studies, to forest inventory data ...
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