Comparative investigation on the Biological, Anatomical, Physical and Chemical Characteristics of reeds from Hooralazim and talab Anzali
Hossein
Familian
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Davood
Parsa pazhoh
College of Natural Resources of Tehran University Iran
author
Abdilrahman
Hosseinzadeh
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Ahmad
Jahan latibari
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
text
article
1997
per
In this investigation, Biological, Anatomical, Physical and Chemical Characteristics of the Phragmites australis Var australis (Cav) Trin. Where investigated in nine plots, at the Hooralazim in southern Iran and talab Anzali in northern of Iran. investigation of biological characteristics indicated that the mean culm diameter the culm pith diameter and internod length of reeds in the north is more than south. The average biological characteristics of P. australis is: culm length, 5.17 mm.; culm diameter, 13.99 mm. culm pith diameter 10.98 mm.; culm wall-thickness, 1.33mm.; Number of nods, 31 and internod length, 10.22 cm. Investigation of Physical characteristics indicated that, density, shrinkage and swelling, in samplaes from south is significantly higher than samples from north. The investigation of chemical characteristics indicated that, there is not significant difference between chemical characteristics.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
2
v.
2- شماره 166
no.
1997
1
115
https://ijwpr.areeo.ac.ir/article_117448_2fab4c35568b79a5edb49ea2447e7739.pdf
dx.doi.org/10.22092/ijwpr.1997.117448
Acidity and buffering capacity of Iranian Woods
Ahmad
Jahan latibari
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Abdolrahman
Hosseinzadeh
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Amir
Nourbakhsh
Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,
author
Abolfazl
Kargarfard
Wood and Forest Products Science Research Division, Research Institute of Forests and
Rangelands, Tehran, Iran,
author
Habib alah
Arabtabar
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
text
article
1997
per
pH and buffering capacity of nine Iranian commercial hardwoods from Caspian sea forests are determined. Selected woods includes Elm, Maple, Hornbeam, (White beech), basswood (lime tree), Alder, Beech, Persimmon (diospyros lutos), Oak and Ironwood. This study was conducted using procedure developed Johns and Niazi. pH of these woods ranged from 4.44 for Oak to as high as 5.37 for basswood. pH of bark extract was always lower than debarked wood with the exception of Maple, Persimmon and Oak. Furthermore heartwood of all these species is more acidic than sapwood with the exception of Oak. Acid buffering capacity of these woods ranged between 0.0046 to 0.1481 mili-equivalent normal NaOH for one gram of wood and base buffering capacity varied between 0.0310 to 0.0768 mili-equivalent normal H2So4 for one gram of wood. Buffering capacity of bark is also measured and it was found that acid or base buffering capacity of wood and it anatomical components is additives.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
2
v.
2- شماره 166
no.
1997
116
151
https://ijwpr.areeo.ac.ir/article_117452_599f20a990bef56f5ac926103b181d76.pdf
dx.doi.org/10.22092/ijwpr.1997.117452
investigation of properties of wood from three tamarix species (T. meyeri, T. aphylla and T. stricta)
Abdolrahman
Hosseinzadeh
Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear
author
Ahmad
Jahan latibari
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Hossein
Familian
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
Saeed
Mahdavi
Wood and Paper Science Research Division, Research Institute of Forests and Rangelands , Iran,
author
Sayed javad
Sepidehdam
Wood and Paper Science Division,
Research Institute of Forests and Rangelands
P.O.Box: 13185-116. Fax: 021-4196573
Tehran,Iran
author
text
article
1997
per
In this investigation, samples were collected from three tamarix species including: Tamarix meyeri from northern part and T. aphylla and T. strica from the southern parts of Iran. Nine dominat tamarix trees were felled, three for each species. From each tree 10 cm thick cross-sections at three different heights (5, 25 and 50% of the tree height) were cut. These disks were used for anatomical study, and remaining logs were transferred to laboratory for physical and chemical tests. The results of this study revealed that wood from these three species of tamarix is considered unsuitable for pulping and in the case, It is used for pulping, the pulp yield will be low and the strength of the pulp will be quite low, which is the consequence of short and thick-walled fibers that will not provide adequate fiber bonding. In addition, because of the large diameter and thick-walled fibers, the strength properties of the woods are also low.
Iranian Journal of Wood and Paper Science Research
Research Institute of Forests and Rangelands
1735-0913
2
v.
2- شماره 166
no.
1997
152
188
https://ijwpr.areeo.ac.ir/article_117456_026f0f17172c89a57ea196aa94afcb4e.pdf
dx.doi.org/10.22092/ijwpr.1997.117456