WOOD PROPERTIES OF POPULUS DELTOIDES 77.51 GROWN IN GILAN, IRAN
Abbas
Fakhryan roghani
MSc., Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,
author
Abdolrahman
Hosseinzadeh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
author
Fardad
Golbabaei
Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands,
Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, Iran
author
text
article
2001
per
Threes, six and 12 years old sample trees of Populos deltoides 77.51 were randomly selected and felled at the safrabasteh research station located in Gilan province. Sample tree transferred to the Alborz research center- Karaj for Laboratory studies; The Laboratory studies included determination of physical, anatomical and chemical composition of revealed that with increasing trees age, fiber length and fiber diameter increased. There was significant differences among three ages studied at I percent probability.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
15
v.
15-شماره 278
no.
2001
1
17
https://ijwpr.areeo.ac.ir/article_117508_12fbdd46a331df5109bcf75b320bc7cf.pdf
dx.doi.org/10.22092/ijwpr.2018.117508
JUNIPERUS EXELSA L.: WOOD STRUCTURE AND PHYSICAL PROPERTIES IN IRANO-TORANI REGION
Nooshin
Toghraie
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
author
Abdolrahman
Hosseinzadeh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
author
Khashayar
Keimosa
Azad university
author
text
article
2001
per
In this research, worked on two juniper trees (Juniperus exelsa L.) in Bakhtiari region as a part of Irano-touranian district. We noted the Sp. Gr. Of wood based on saturated volume 0.52, porosity 64%, volume shrinkage and swelling 10% and 11.3% resp. Anatomical structure and microscopic characteristics had been investigated incidentally. The average length of tracheids 1.3 mm. And the diameter, lumen diameter and thickness of cell wall of tracheids were determined 23.4, 16.3 and 3.5 microns resp. the major pulp indexes are calculated via related formulas.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
15
v.
15-شماره 278
no.
2001
20
31
https://ijwpr.areeo.ac.ir/article_117509_9d3a9097641e97a39f2cd9ebc7b419db.pdf
dx.doi.org/10.22092/ijwpr.2018.117509
VARIATION IN MECHANICAL PROPERTIES OF HORNBEAM (CARPINUS BETULUS L.) WOOD GROWN AT DIFFERENT ELEVATION OF ASALEM FORESTS (GILAN), IRAN
Fardad
Golbabaei
Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands,
Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, Iran
author
Abdolrahman
Hosseinzadeh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
author
Amir
Nourbakhsh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
author
Hossein
Hosseinkhani
Wood Science & Forest Products Research Division
Research Institute of Forests & Rangelands Tehran, Iran
author
Abbas
Fakhryan roghani
MSc., Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,
author
text
article
2001
per
In this study physical and mechanical properties of Hornbeam (Carpinus betulus L.) grown at three different elevations of Asalem Forests located at the north west of Gilan were investigated following the ASTM Standard. Sample trees were selected from 3 different elevations, at different height of trees, at 4 different geographical directions of the stems and 2 different moisture contents.The results of statistical analysis revealed that properties of Hornbeam wood from this region was influenced by elevations and to the lessees extend to geographical direction of wood specimens and tree height.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
15
v.
15-شماره 278
no.
2001
33
60
https://ijwpr.areeo.ac.ir/article_117510_4a3122feff41fd226417eb0053829ce7.pdf
dx.doi.org/10.22092/ijwpr.2001.117510
INVESTIGATION ON THE POSSIBILITY OF PARTICLEBOARD PRODUCTION FROM LIGNOCELLULOSIC SOURCES IN SOURTHERN REGION OF IRAN (2) REPORT 2: THE POTENTIAL OF DATE PALM RESIDUES AND PROSOPIS (MESQUITE) WOOD IN PARTICLEBOARD INDUSTRY
Amir
Nourbakhsh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
author
Abdolrahman
Hosseinzadeh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
author
Ahmad
Jahan latibari
Prof. Islamic Azad University, Karaj, Iran
author
Fardad
Golbabaei
Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands,
Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, Iran
author
Abolfazl
Kargarfard
Wood and Forest Products Science Research Division, Research Institute of Forests and
Rangelands, Tehran, Iran,
author
Hossein
Hosseinkhani
Wood Science & Forest Products Research Division
Research Institute of Forests & Rangelands Tehran, Iran
author
text
article
2001
per
In this experiment the optimum condition of particleboard uom Date palm residues and prosopis (Mesquite) produced in southern part of Iran was investigated. Variable factors as type of raw-material (Date palm and prosopis), resin content (9, 10 and 11 percent) and press time (5, 6 and 7 minutes) and total of 18 combinations of variables were investigated.Other factors such as type of resin (UF), hardner content (2 percent) type of hardner (NH4CI)press closing time (4.5 mm/sec.), board density (0.7gr/cm3) press pressure (30 kg/cm2) and press temperature (160 C) were held constant.All boards were tested according to DIN-68763 standard. The factorial experimental design at completely random blocks test was used. The results of this study could be summarized as follows: Increasing the resin content from 9 to 11 percent increased MOR, MOE and ID and decreased thickness swelling after two and 24 hours immersion in water.The highest internal bond (IB) was related to prosopis (Mesquite) boards made at 5 minute, prass time. As far as production of date plam and prosopis (Mesquite) wood is concerned, the results revealed that the polymerization of resin and wood is better at 11 percent resin content and 5 minutes of press time. Date palm residues are important with treatment process according to reference. NO. One. Shape and dimension of chipped and flaked particles of date palm residues are important, because type and characteristics of species are different, in the mean time, as date palm residues has very high bulk density and specific surfaces than prosopis (Mesquite) which it has inverse effect on both physical and mechanical properties, thus it should be considered during the process of particleboards production.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
15
v.
15-شماره 278
no.
2001
61
87
https://ijwpr.areeo.ac.ir/article_117511_a0920040dc52acb8e8ebe67bf9a14497.pdf
dx.doi.org/10.22092/ijwpr.2001.117511