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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.

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Presentation on theme: "2007 IUFRO All Division 5 Conference, Taipei An Investigation on Variations of some of the physical and biometrical properties of planted Acer Velutinum."— Presentation transcript:

1 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, Islamic Azad University (IAU), Science & Research Branch Tehran, Iran hkhademi@sr.iau.ac.ir دانشگاه آزاد اسلامی

2 Pakistan Afghanistan IRAN Tehran Caspian sea Russia Iraq Persian Golf دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

3 Pakistan Afghanistan IRAN Tehran Caspian sea Russia Iraq Persian Golf north forest دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

4 Pakistan Afghanistan IRAN Tehran Caspian sea Russia Iraq Persian Golf north forest distribution of Acer in Iran دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

5 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

6 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

7 Principal products Sawn lumber Veneer Plywood Fuel wood 2007 IUFRO All Division 5 Conference, Taipei Introduction Particleboard Pulp & Paper MDF Furniture, etc

8 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Introduction

9 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Material and methods The study site

10 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Material and methods Sampling

11 دانشگاه آزاد اسلامی Collection and preparation of the experimental samples 2007 IUFRO All Division 5 Conference, Taipei Material and methods Sampling

12 دانشگاه آزاد اسلامی Testing variables - Wood density - wood moisture content (%) - total volumetric shrinkage and swelling - Fiber dimensions 2007 IUFRO All Division 5 Conference, Taipei Material and methods

13 Specific gravity دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

14 Specific gravity دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

15 Specific gravity دانشگاه آزاد اسلامی coefficient of variations 28.7% 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

16 Specific gravity دانشگاه آزاد اسلامی coefficient of variations 28.7% and 27.8% 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

17 دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION SG (gr/cm 3 ) DBHSapwoodHeartwood Average0.520.49053 SD0.090.110.15 CV (%)17.326.528.2

18 دانشگاه آزاد اسلامی Moisture content 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

19 دانشگاه آزاد اسلامی Variations in moisture content (%) and porosity (%) at different heights Moisture content & Porosity 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

20 دانشگاه آزاد اسلامی Shrinkage 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

21 دانشگاه آزاد اسلامی Swelling 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

22 دانشگاه آزاد اسلامی Variations in volumetric shrinkage and swelling at different heights Shrinkage & Swelling 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

23 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

24 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

25 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

26 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

27 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

28 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

29 2007 IUFRO All Division 5 Conference, Taipei RESULTS & DISCUSSION

30 Conclusions دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei Specific gravity Moisture content Shrinkage Swelling fiber length

31 Conclusions دانشگاه آزاد اسلامی 2007 IUFRO All Division 5 Conference, Taipei

32 دانشگاه آزاد اسلامی THANKS

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