Dynamic of coarse woody debris among stand developmental stages of mixed beech (Fagus orientalis) forests

Document Type : Scientific article

Authors

1 Assistant professor, Department of Wood and Paper Science and Technology, Faculty of Agricultural and Natural Resources, University of Mohaghegh Ardebili, Ardebil, I.R. Iran.

2 Professor, Department of Forestry and Economics, Faculty of Natural Resources, University of Tehran, Tehran, I.R. Iran

Abstract

Understanding and our knowledge about mixed beech stands development play key role in managing forest stand in the close to nature ways. There are differences in amount and quality of coarse woody debris reported from beech stands in the north of Iran. This research try to answer this questions: how amount and quality of coarse woody debris affected by stand development stages? So 30 one hectare sampling plots randomly were chosen in main three stand developmental stages and all coarse woody debris had been measured. Results showed that the volume of CWD followed the general “U-shaped” temporal trend: the highest in the Volume transition stage (42.2 m3 ha-1), lowest in the volume accumulation (12.8 m3 ha-1) and intermediate in the Volume growing up stage (27.8 m3 ha-1). Amount of oriental beech coarse woody debris was (log, snag and stump) significantly higher in three stages. Amount of beech volume, logs, size class III and decay class I and IV significantly differ among the three stages. Our results revealed that stand development have effect on the distribution of CWD among three stages.

Keywords

References

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