This study done with the aim of green space development (tree planting) in the watershed  to prevent erosion and as well as reconstruction of destroyed places, examines site selection of suitable lands for Amygdalus Scoparia  planting in the Watershed Mordghafar in izeh township located in the northeastern khouzestan province in summer 1390. For this purpose, the nine most influential parameters including mean annual precipitation ,mean annual temperature, elevation classes, slope, slope aspect, geology, Geomorphology, soil depth and soil texture were selected as appropriate measures in GIS maps were produced. Analytical Hierarchy Process AHP used for weighting the maps. With a combination of standard maps in GIS, mapping the location of the four fitness classes, was produced. The research results show that 37% of the total area (814 hectares) for Amygdalus Scoparia planting that is very appropriate for the geographic directions North and South and on the high altitudes (1000-1300 m) is consistent.