Effect of some physiographic factors of sumac habitats on ecological characteristics of sumac in Binalood Mountains

The aim of this study was finding the Autecology of sumac species (Rhus coriaria) in Khorasan province (Binalood Mountains). Sampling of soil and plant vegetation carried out in two sites (Darroud and Bojan with 5 and 6 hectare surface area respectively). Climate of these sites was semi arid. Samples gained from 33 plots with systematic random method by using of 50 * 50 meter net. The factors of tree measurements including tree height، crown height، crown percentage، tree density and seedling density measured in all plots. ANOVA test showed: 1- Among aspects the factors of seedling density، crown percentage and crown height had significant differences،2- the effect of slope was significant on tree density and crown percentage،3- The increase of stone percent decreased crown percentages، tree density and crown height. 4- Increase of gravel percent deduced tree height، crown percentage and tree density. In general، due to little requirements of this species to water and nutrient and due to distribution of this species in soils with medium nutrient levels and even week soils and to widespread distribution of sumac species in Iran، utilization of sumac for development of green space in arid and semi-arid areas can be ordered.