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:: Volume 6, Issue 12 (12-2018) ::
PEC 2018, 6(12): 109-122 Back to browse issues page
Evaluating plant diversity and some features of Oriental beech in different tree-layers : A case study of Beech forests in Asalem, Guilan
Behzad Bakhshandeh Navoroud , Kambiz Abrari Vajari * , Babak Pilehvar , Yahya Kooch
Assistant Prof, Forestry Dept. Faculty of Agriculture and Natural Resource,Lorestan University, Khorramabad , kambiz_abrari2003@yahoo.com
Abstract:   (3433 Views)

The present study aimed to examine the effects of stratification on tree layers diversity and some features of beech trees in Hyrcanican forest, Guilan, Asalem. Also, the interactions between tree diversity and some characteristics of beech leaves were investigated. The Nine research plots were sampled as a gradient from pure beech stands to mixed stands with up-to-9 deciduous tree species with three replications for each case. Each research site had a size of 2500 m2 (50 m × 50 m). In each tree layers, diversity indices, crown diameter, DBH and frequency of beech tree were measured within plots. The results showed that the highest value of richness and diversity indices belonged to the second tree layer. The highest amount of basal area and crown diameter were observed in the first tree layer (overstorey). Regression analysis showed that tree layer diversity and richness measures were significantly and positively correlated with fresh and dry weight of beech leaves. Correlation coefficients indicated that beech frequency was significantly and positively correlated with the weight of fresh leaves and negatively with dry weight of leaves. There was a significantly and negatively correlation between basal area of beech trees with fresh and dry weight of leaves within stands. In general, it can be stated that diversity-functioning relationships might occur in the tree-layer of the deciduous beech forest under investigation.

Keywords: Beech, Diversity, Hyrcanian forests, Tree layer
Full-Text [PDF 215 kb]   (668 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/01/22 | Accepted: 2017/10/7 | Published: 2018/11/24
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Bakhshandeh Navoroud B, Abrari Vajari K, Pilehvar B, Kooch Y. Evaluating plant diversity and some features of Oriental beech in different tree-layers : A case study of Beech forests in Asalem, Guilan. PEC 2018; 6 (12) :109-122
URL: http://pec.gonbad.ac.ir/article-1-276-en.html


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Volume 6, Issue 12 (12-2018) Back to browse issues page
مجله حفاظت زیست بوم گیاهان Journal of Plant Ecosystem Conservation
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