ORIGINAL ARTICLES   

Minerva Biotecnologica 2012 June;24(2):37-41

Copyright © 2012 EDIZIONI MINERVA MEDICA

lingua: Inglese

Environmental factors controlling some vegetative characteristics of Quercus brantii L.

Varmazyar M. M. ¹, Soosani J. ², Mousavi S. M. ³, Sherafatmand M. ³

¹ Young Researchers Club, Khoramabad Branch, Islamic Azad University, Khuramabad, Iran; ² Department of Natural Resources, Lorestan University, Iran; ³ Department of forestry Forest Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

Aim. The effects of environmental factors on some vegetative characteristics of Quercus brantii lindley was investigated in Shoorab Forest Park, West of Iran, using multivariate analysis in this study.
Methods. Sixty-four sample plots with a size of 2000 m2 were considered for measuring the vegetative parameters. Some environmental factors such as slope, aspect and soil depth were recorded in all sample plots. The Detrended Correspondence Analysis (DCA) was used to investigate the relation between vegetative parameters and environmental factors. Redundancy analysis (RDA) was also used to interpret the results.
Results and conclusion. The results of DCA analysis showed that the effect of environmental factors on vegetation cover is significant. Slope had the smallest and the soil depth had the biggest effect on vegetative characteristics of Q. brantii lindley. The results also confirmed the usage of RDA analysis for investigating the relationship between environmental factors and vegetative characteristics.