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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES   OCTOBER-NOVEMBER 2007 , Volume 14 , Number 4; Page(s) 32 To 40.
 
Paper: 

INVESTIGATI ON ON THE EFFECTS OF TREE AGE AND HEIGHT ON CHEMICAL PROPERTIES OF POPULUS DELTOIDES WOOD

 
 
Author(s):  KORD BEHZAD*, SARAEIAN A.R.
 
* GORGAN UNIVERSITY OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, IRAN
 
Abstract: 

This research was carried out to investigate the effects of tree age and height on chemical constituents of Populus deltoides wood. Five poplar trees were randomly cut down from Dr. Bahramnia forest located in Shastkolateh-Gorgan. Three sample disks were cut from trees at heights of 1.30, 11m and 16.50m. The specimens were taken from pith to bark and from bottom to top of tree stem to determine the chemical constituents such as extractives, lignin and ash content. The results indicated that hot water soluble extractives decreased by age from pith to bark and from bottom to top of the tree trunk. Sodium hydroxide soluble extractives followed the trends as hot water soluble extractives. The extractives soluble in alcohol-aceton decreased by age and height. The lignin content decreased from pith to bark and increased from bottom upwards. The ash content decreased by age and from bottom to top of tree stem. Results revealed that the chemical constituents influenced by tree age than height.

 
Keyword(s): POPULUS DELTOIDS, ETRACTIVES, LIGNIN, ASH, AGE, HEIGHT
 
References: 
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