2007 iufro all division 5 conference, taipei
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2007 IUFRO All Division 5 Conference, Taipei. An Investigation on Variations of some of the physical and biometrical properties of planted Acer Velutinum in the longitudinal direction in north of Iran. H. Khademi-Eslam Laboratory of Wood Science and Technology, - PowerPoint PPT PresentationTRANSCRIPT
2007 IUFRO All Division 5 Conference, Taipei
An Investigation on Variations of some of the physical and biometrical properties of planted Acer Velutinum in the longitudinal direction in
north of Iran
H. Khademi-EslamLaboratory of Wood Science and Technology,
Islamic Azad University (IAU), Science & Research BranchTehran, Iran
آزاد دانشگاه اسالمی
Pakistan
AfghanistanIRAN
Tehran
Caspian sea
Russia
Iraq
Persian Golf آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
Pakistan
AfghanistanIRAN
Tehran
Caspian sea
Russia
Iraq
Persian Golf
north forest
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
Pakistan
AfghanistanIRAN
Tehran
Caspian sea
Russia
Iraq
Persian Golf
north forest
distribution of Acer in Iran
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
Principal products
Sawn lumber
Veneer
Plywood
Fuel wood
2007 IUFRO All Division 5 Conference, Taipei
Introduction
Particleboard
Pulp & Paper
MDF
Furniture, etc
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Introduction
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Material and methods
The study site
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Material and methods
Sampling
آزاد دانشگاه اسالمی
Collection and preparation of the experimental samples
2007 IUFRO All Division 5 Conference, Taipei
Material and methods
Sampling
آزاد دانشگاه اسالمی
Testing variables
- Wood density- wood moisture content (%)- total volumetric shrinkage and
swelling- Fiber dimensions
2007 IUFRO All Division 5 Conference, Taipei
Material and methods
Specific gravity
آزاد دانشگاه اسالمی
0.55
0.53 0.53
0.52
0.53
0.53
0.54
0.54
0.55
0.55
0.56
1.3 5 10
tree height (m)
S.G
.(g
r/cm
)
oven-dry density
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
Specific gravity
آزاد دانشگاه اسالمی
0.55
0.53 0.53
0.47
0.46 0.46
0.40
0.42
0.44
0.46
0.48
0.50
0.52
0.54
0.56
1.3 5 10
tree height (m)
S.G
.(g
r/cm
)
oven-dry density basic density
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
Specific gravity
آزاد دانشگاه اسالمی
coefficient of variations 28.7%
0.55
0.53 0.53
0.47
0.46 0.46
y = -0.01x + 0.5567R2 = 0.75
0.40
0.42
0.44
0.46
0.48
0.50
0.52
0.54
0.56
1.3 5 10
tree height (m)
S.G
.(g
r/cm
)
oven-dry density basic density
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
Specific gravity
آزاد دانشگاه اسالمی
coefficient of variations 28.7% and 27.8%
0.55
0.53 0.53
0.47
0.46 0.46
y = -0.01x + 0.5567R2 = 0.75
0.40
0.42
0.44
0.46
0.48
0.50
0.52
0.54
0.56
1.3 5 10
tree height (m)
S.G
.(g
r/cm
)
oven-dry density basic density
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
SG (gr/cm3)
DBH Sapwood Heartwood
Average 0.52 0.49 053
SD 0.09 0.11 0.15
CV (%) 17.3 26.5 28.2
آزاد دانشگاه اسالمی
Moisture content
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
54.7
53.7
61.7
48
50
52
54
56
58
60
62
64
1.3 5 10
tree hight (m)
M.C
. (%
)
آزاد دانشگاه اسالمی
Variations in moisture content (%) and porosity (%) at different heights
54.753.7
61.762.9
64.6 64.7
R2 = 0.6447
40
45
50
55
60
65
70
1.3 5 10
tree hight (m)
(%)
M.C. Porosity
Moisture content & Porosity
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
آزاد دانشگاه اسالمی
Shrinkage
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
16.5
14.4
14
y = -1.25x + 17.467R2 = 0.8665
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
1.3 5 10
tree higth (m)
(%)
آزاد دانشگاه اسالمی
Swelling
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
14.2
12.6
12.3
y = -0.95x + 14.933R2 = 0.865
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
1.3 5 10
tree higth (m)
(%)
آزاد دانشگاه اسالمی
16.5
14.414
14.2
12.612.3
R2 = 0.8665
R2 = 0.865
10
11
12
13
14
15
16
17
1.3 5 10
tree higth (m)
(%)
Sh. V Sw.
Variations in volumetric shrinkage and swelling at different heights
Shrinkage & Swelling
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
920
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
920
1010
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
920
1010 1020
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
920
1010 1020 1030
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
840
920
1010 1020 1030980
0
200
400
600
800
1000
1200
Pith Bark
fib
er le
ng
th (
mic
ron
)
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
2007 IUFRO All Division 5 Conference, Taipei
RESULTS & DISCUSSION
Conclusions
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
Specific gravity Moisture content Shrinkage Swelling fiber length
Conclusions
آزاد دانشگاه اسالمی
2007 IUFRO All Division 5 Conference, Taipei
2007 IUFRO All Division 5 Conference, Taipei
آزاد دانشگاه اسالمی
آزاد دانشگاه اسالمی
THANKS