Document Type : Original Article

Authors

• Dorna Rezaei ¹
• Mohamad Hossein Irannezhad Parizi ²
• Azizollah Jafari Kokhdan ³
• Roghaye Zolfaghari ⁴

¹ M.Sc. Student of forestry, University of Yazd, Yazd, Iran

² Department of Forestry, University of Yazd, Yazd, Iran

³ Department of Biology, University of Yasouj, Yasouj, Iran

⁴ Department of Forestry, University of Yasouj, Yasouj, Iran

Abstract

Dena Biosphere Reserve located in Iran and is a 550 Biosphere Reserve in the worlds. This research was investigated in the two protected and non-protected areas, in a Dena Biosphere Reserve, Kohkeloye va Boyrahmad province, and central zagros forest, southwest of Iran. Inventory methods designed by systemetic-randomaiz method by use the rectangular plots that were 15×30 meters in the 100×100 m Net. In each plots information include qualities and quantities tree parameter measured. T-test was used to analysis of mean quantities tree parameter differences between protected and non-protected area. Data analyzing was done by Excel and SPSS16 software’s. Results showed that the DBH distribution in the reduced uneven- aged stand in protected area and reduced even aged in the non-protected area. Results showed that the mean of forest characteristics including DBH, height, canopy cover and, and density in the protected area are 38.5 (±5.5), 6.51 (± 0.9), 38 (±5.5) and 530 (±35) and this quantities parameters in protected area higher the non-protected area. Overall results showed that the qualities and quantities tree parameters in the non-grazed area higher the grazed area, and grazing has a negative effect on the qualities and quantities tree parameters. 

Keywords

• Qualities and quantities parameters
• Dena Biosphere Reserve
• Protected area
• Kohkeloye va Boyrahmad province
• DBH distribution