Paper Information

Journal:   IRANIAN JOURNAL OF FOREST AND POPLAR RESEARCH   WINTER 2008 , Volume 15 , Number 4 (30); Page(s) 365 To 373.
 
Paper: 

INVESTIGATION ON DEAD TREES EFFECTS ON NATURAL REGENERATION OF ORIENTAL BEECH AND HORNBEAM IN A MIXED BEECH FOREST

 
 
Author(s):  SEFIDI K.*, MARVI MOHAJER M.R., ZOBEYRI MAHMOUD, ETEMAD V.
 
* FACULTY OF NATURAL RESOURCES, UNIVERSITY OF TEHRAN
 
Abstract: 

The process of natural regeneration including establishment of seedling under dead and mother trees ensure sustainable productivity in the forests. Qualifying the impact of dead trees on the density of establishment seedling in closed and open canopy in a mixed beech forest was studied. According to the field inspection, compartments 112 and 214 in Kheiroudkenar forests were chosen for sampling. Dead trees were considered as the center of sampling plot with different radius. Also in a 20-30 meter distance from dead trees, sound mother trees of same species were chosen. At the center of each plot, seedlings were counted in a circular sample plots with diffident radius. The results show that number of beech seedlings is higher than that of hornbeam and there is significant difference between establishments of seedling between dead and sound trees in an open canopy. Seealing density in open stand is higher than that under mother trees. Frequency of seedling around the dead trees was maximum. The higher decay class, the higher is the establishment of seedling. Also the number of seedlings is higher in small sample plots (100m2) which are closer to the dead trees. The results showed that the maintenance of dead trees is important and effective in establishment of natural regeneration in mixed beech forest.

 
Keyword(s): DEADWOOD, MIXED FOREST, CASPIAN FOREST, NATURAL REGENERATION, BEECH, HORNBEAM
 
References: 
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