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Hardwood fast-growing

Preparation of Hot-Melt and Self-Bonded Boards. Reaction conditions for benzylation are dependent on wood species and specimen size. For Akamatsu particles, pretreatments and reaction conditions are as follows wood is first oven-dried at 105°C for 24 h and then immersed in 40% sodium hydroxide solution for 1-2 h at room temperature. These particles are then squeezed to remove excess sodium hydroxide and reacted with benzyl chloride at 120°C for 1-2 h. Benzylated particles are then washed in water and any unreacted reagent is removed by squeezing. Particles are then washed further in a mixture of water-methanol (1 2 v/v) and air-dried for 48 h at 20 C. In general, benzylation of softwood species is more difficult than for hardwoods, and the reactivities of wood from fast-growing trees, i.e., willow or monocotyledons,... [Pg.218]

Crop Fast-growing hardwoods with coppice regrowth. [Pg.556]

Woody energy crops. Short-rotation woody crops are fast-growing hardwood trees harvested within 5-8 yr after planting. These include hybrid poplar, hybrid willow, silver maple, eastern cottonwood, green ash, black walnut, sweetgum, and sycamore. [Pg.122]

Variable, generally of the order of 200,000 ODT/ac-yr Fast-growing hardwoods with coppice regeneration 5 to 10 ODT/ac-yr... [Pg.497]

Fast-growing hardwoods are generally suggested because of their coppicing properties, which eliminate the need for reestablishment of the plantation after each harvest. Due to the climate and soil conditions, pines may be better crop candidates in some situations, as shown for instance in Southern Georgia where loblolly pines displayed higher productivity than sycamore for rotations of about 6 years or more (16). [Pg.498]


See other pages where Hardwood fast-growing is mentioned: [Pg.33]    [Pg.33]    [Pg.333]    [Pg.108]    [Pg.109]    [Pg.47]    [Pg.150]    [Pg.169]    [Pg.198]    [Pg.120]    [Pg.210]    [Pg.211]    [Pg.219]    [Pg.782]    [Pg.483]   
See also in sourсe #XX -- [ Pg.498 ]




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