بررسي استقرار پوشش خزه اي و تنوع قارچ هاي ماكروسكوپي روي خشكه دارهاي راش و ممرز در يك جنگل آميخته راش

Diversity of dead wood inhabiting fungi and bryophytes in mixed beech forests (North of Iran)

Dead wood is considered important in forest conservation. In this research, diversity of fungal and bryophyte communities occurring in dead beech trees were analyzed in mixed beech forest in north of Iran. The aim of this study was to analyze fungal and bryophyte communities occurring in dead beech trees. Altogether, 205 dead beech trees were investigated in this research. All dead trees (downed logs and snags) were measured. Results showed that, bryophyte communities was covered different in two general directions. In slopes with northern general direction, bryophytes communities cover was higher than another directions. Effect of dead wood size, decay stage (quality of dead wood) and species were also analyzed. Results showed that, there is no significant difference between bryophyte communities and them. Study diversity of dead wood inhabiting macro fungi showed that, there is significant difference between decay stage (quality of dead wood) and dead wood size and diversity of macro fungi as well. Meanwhile, macro-fungi were identified in recent research. According to the results derived from this research, most of macro-fungi belonged to Ascomycetyes and Basidiomycetes inhabited most of them on downed togs. It is concluded that,, in this forest type fine woody debris is important for diversity of wood-inhabiting fungi, especially ascomycetes. However, coarse woody debris must also be provided to insure the occurrence of many species of basidiomycetes.