Forest trees as result of various factors affecting the soil under its canopy. Studying the relationship between trees and soils is one of the main reasons for forest management and land. Common Myrtle (Myrtus communis) of the family Myrtaceae, is a shrub or evergreen shrub habitat that investigation of its characteristics helps to preserve, cultivate and develop the habitat of this plant. This study aims is to examine how species influence on soil properties to be able to understand the relationships and generalize the results in similar solutions in the field of reform and reclamation advised. This study was conducted in Kohgiluyeh and Boyer Ahmad city in Basht area. Six profile that half profile were under canopy shading and the other half were outside shading, on the north side of trees (in triplicates). In each of the three depth profiles of 30-0, 60-30 and 90-60 cm soil samples were taken. Evaluation tests showed that the electrical conductivity, organic matter, percent nitrogen, phosphorus, potassium, copper, manganese, zinc, iron, and percent sand particles under the tree canopy of the tree canopy has increased significantly. Also treated neutral subject matter, soil pH, percent clay and silt particles in the soil under the canopy showed a significant reduction in the size of the.
