The effect of Canopy Cover, slope and direction of domain on continuing regeneration in zagross forest (case study: blooran. Koohdasht, lorestan)

Subject Areas : forest

koorosh nazarpoor fard ¹ (دانشجوی کارشناسی ارشد جنگل شناسی و اکولوژی جنگل پردیس کشاورزی و منابع طبیعی دانشگاه تهران کرج ایران)
mehdi zarooni ² (دانشجوی کارشناسی ارشد جنگلداری دانشکده منابع طبیعی و محیط زیست دانشگاه ملایر)
vahid etemad ³ (استادیار دانشکده منابع طبیعی پردیس کشاورزی و منابع طبیعی دانشگاه تهران کرج ایران)
manoochehr namiranian ⁴ (استاد دانشکده منابع طبیعی پردیس کشاورزی و منابع طبیعی دانشگاه تهران کرج ایران)

Received: 2015-09-28 Accepted : 2016-05-06 Published : 2016-05-21

Keywords: Slope, Canopy cover, aspect, regeneration, Blouran, Coppice, Kuhdasht, Zagros forests,

Abstract :

The aim was to find out the relationships between three classes of regeneration(lower 0.5 m, 0.5 – 1.5m, and higher 1.5 m) with canopy cover percentage ( four classes: 1-5%, 5.1 – 12%, 12.1 – 25% and 25%<), slope (three classes: 0 – 30%, 30 – 60% and 60%<), and aspect (( four classes: N, S, E and W). In order to investigate the natural regeneration in the Zagros forests, a forest area of 200 ha located in Blouran region, West part of Kuhdasht city, was selected. A number of 90 sample plot with an area of 1000 m2  (network dimensions of 20×50 m) were sampled. Result showed that high forest regeneration was scarce relative to those of coppice. Q. Branti had maximum number of regeneration. The maximum number of regeneration was less than 0.5 m in height. Maximum number of regeneration  was  observed  in  the  canopy  cover  of  12.1  –  25%  class (65.13). The slope class of 30 – 60 percent showed the maximum number of regeneration in all height classes (73.59). Maximum regeneration in the South aspect, and this was the maximum number of.It is noteworthy to consider the natural regeneration of the Zagros forest with reference to seed development to regeneration as well as regeneration establishment in several physiography, climate and edaphic conditions.

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