Transcript การประเมินศักยภาพ

Evaluation on Utilization Potential of
Melaleuca cajuputi Powell
By
Somchai Benjachaya
Tawat Jurayut
Phornphimon Amornchot
Laksamee Suthiwilairatana
Charat Chuayna
Bounsong Sompoh
Wichit Sonthivanit
Royal Forest Department
Material and Method
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Surveying of local utilization
Air seasoning
Basic characteristics
Lumbering
Wood working
Plywood manufacturing
Charcoal production
Results and Discussion
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Data surveying : Sampling of test logs
Defect of lumber : Density, Specific gravity
Air seasoning : Lumbering
Wood working : Wood carving
Plywood manufecturing : Charcoal production
General Data
• Local people utilization by size
and age of M. cajuputi
•Wood Preservative by local
people
• Bark of M. cajuputi usage
• Leaves of M. cajuputi usage
• Problem of M. cajuputi
Sampling of test logs
• Small, dbh 3-5 ins, for air
seasoning and charcoal
•Medium, dbh 6-12 ins, for
basic characteristics,
lumbering, and wood
carving
•Large, dbh > 16 ins, for
plywood manufecturing
Defects of Lumber
• Studied M. cajuputi
was less fungi, insect,
and defects than other
species
• All of knots were
sound knot
Density, Specific gravity
•M. cajuputi density was
580.47-682.59 kg/m3
at 14.87-15.06 % MC
•The average specific
gravity was 0.59
Air seasoning
•Weight of M. cajuputi
decrease 18 % after
8 days
•Surface of cross and
longitudinal of log
splitted continuously.
Lumbering
•By chain saw
altogether circular saw
with rotor of a plow, it
was 36.25 % yield.
•The estimated price is
6,000-9,000 Baht/m3
Wood working
•M. cajuputi was easy
for naling, screwing,
sawing, cutting,
sanding, drilling,
lathing, and finishing
Wood carving
•M. cajuputi was
toughness and spiral
grain
•M. cajuputi was worse
than Teakwood but better
than Rain tree for carving
Plywood manufecturing
•M. cajuputi was difficult
to boil or transfer heat.
•M. cajuputi has spiral
grain, and unsound knot.
•M. cajuputi give low
quality and price for
plywood.
Charcoal production
•Local brick beehive kiln,
yielded 29.09 %,
kilning time 5.2 days
•Standard RFD brick
beehive kiln,
yielded 30.76 %,
kilning time 2.6 days