Forest structure and woody plant species composition after a wildfire in beech forests in the north of Iran

编号 zgly0000818191

文献类型 期刊论文

文献题名 Forest structure and woody plant species composition after a wildfire in beech forests in the north of Iran

作者 Mohammad  Naghi  Adel  Hassan  Pourbabaei  Ali  Omidi  Daniel  C  Dey 

作者单位 Facultad  de  Department  of  Forestry  Department  of  Forestry 

母体文献 林业研究: 英文版 

年卷期 2013(2)

页码 255-262

年份 2013 

分类号 S 

关键词 fire    structure    composition    regeneration    beech  forest    Guilan  Province 

文摘内容 Beech (Fagus orientalis Lipsky) forest covers about 565,000 ha of land in Guilan province, north of Iran and forms a major carbon pool. It is an important economic, soil protection and recreation resource. We studied long-term effects of fire on the structure and composition 37 years after fire occurrence in these forests. To do this research, we selected 85 ha burned and 85 ha unburned beech forests). The results indicated that the fire had not changed the overall uneven-aged structure, but it changed forest composition from pure stands to mixed stands that now include species such as Carpinus betulus, Acer cappadocicum and Alnus subcordata. The density of trees and regeneration was significantly increased, while the density of shrubs significantly decreased. The main reasons for increased tree regeneration were attributed to (1) reduction of litter depth, and (2) increase in available light from opening of the canopy and reduction in shrub competition. It is apparent that the forest is on a path to return to its natural state before the fire after 37 years.