Habitat conditions Study of Myrtus communis in forests reserves of Ilam province

Myrtle shrub species with the scientific name Myrtus communis is a most economically and genetically important forest reserves in Ilam province that is identified by Natural Resources General Office as a forest reserve. The most important habitats of this valuable species located in Tanoreh Abdanan, Zarab Zarrinabad and Mort village from Chavar district. Given the great value of this species, the current research was done by examining the ecological and silvicultural aspects of M.communis as a starting point for future studies. Therefore, variables such as crown diameter, shrub height, vitality and number of regenerations were measured by 100% inventory method in three regions. Also, three soil samples were taken from each site and pH, Electrical Conductivity (EC), Organic Carbon (OC), Nitrogen (N), Phosphorous (P), Potassium (K), Bulk Density (BD) and soil texture parameters were measured in the lab. Using the SPSS software v.16, mean comparisons of adafyk and vegetative parameters in three sites were performed. In this study, correlation analysis between different parameters was investigated and the regression model of correlated parameters was built in separate for each site. Results showed that there is a significant difference between all parameters in three sites. Also, results revealed that there is statistically a positive relation between crown diameter and shrub height. Furthermore, in Chavar site, tree regeneration has a positive relation with soil OM and K. according to obtained results, in Abdanan site, there is a negative correlation between stems height and soil pH.

Keywords:

Myrtle , habitat , soil , mean comparison , correlation