Impact of Physiographic Factor on Biodiversity Indices of Herbaceous species Juniper Stands in Hezar Masjed Mountains

The effect of physiographic factors on herbaceous species of Juniper stands in Hezar Masjed Mountains in the northern khorasan Razavi province was considered. Slope, aspect and altitude from sea level maps were. Random method performed for samping. Sixty quadrates of 1m2 were established. The results obtained from statistic tests showed none of the numerical indices showed significant changes in elevation gradient. Slope had significant effect on Shanoon-winer diversity index, N2Hile, Brillouin, as well as richness index of Margalef and Menhenik and modified Nee evenness. Also aspect effects on biodiversity indices showed that all indices except Margalef richness, modified Nee evenness was significantly different in aspect classes.