Why Moringa peregrina (Forssk.) Fiori is distributed at South of Iran

Moringa peregrina is a tree or shrub, component of Nobo-Sindian district vegetation cover and extends from Dead seaSea and scatteresscatters in Red sea and spreads throughout northern Somalia and around the Arabian Peninsula to mouth of Persian Gulf and Iran. Its habitates in Iran are limited to Hormozgan and Sistan & Balochestan provinces onprovinces on mountainous andmountainous and foothilly foothill areas.
The habitat of Moringa M. peregrina is located in Sahara- Sindian climatic region with hot summer, moderate winter, mean rainfall of 180-200 mm, mean l temperature of 27ºC, mean evaporation of 3448 mm. Moringa often occupies Makran geological ranges and tertiary geology structural unit. Parent material consists of sandstone, shale and mudstone.
The results of soilof soil analysis showed that soil texture in most stands is sandy- loam, acidity is 7.98 and electricand electric conductivity is 1.78 des/m. The PCA results illustrated that the most important soil parameters for M. peregrina distribution were pH and sand valves respectively.
The results of stand properties showed the stands were coppice and density was weak and number of trees was 2-82/ha.
Distribution of M. peregrina around the Red sea, Golf of Adan and Oman sea on Montane region and the same bed rock are illustrated this tree as well as Acacia, Ziziphus spina-christi and Calotropis procera belongebelong to Tertiary period. In other word the presence of Moringa M. peregrina in Iran are is affected by geological revolution history¡ parent material, temperature, physiographic factors and soil properties.