بررسي آماري شرايط فيزيوگرافيك رويشگاه هاي پسته وحشي در استان فارس با استفاده از سامانه هاي اطلاعات جغرافيايي (GIS)

Statistical study of physiographic conditions in wild pistachio habitats using GIS in Fars province

Wild pistachio species, Pistacia atlantica and P. khinjuk, are xerophyte species in Irano-Toranian region, which are scattered in an area about 3200000 ha in four main open forest types of Fars province including: 1) Acer monpessulanum-Pistacia atlantica, 2) Amygdales spp.-Pistacia spp., 3) Pistacia spp. and 4) Quercus brantii-Pistacia atlantica. Regarding the distribution area, elevation, slope and aspect characteristics of wild pistachio, different maps were produced in 1:250000 scale using GIS. The distribution map of wild pistachio was integrated with the other mentioned maps. Analyze of variance and F- test showed that, 57% of habitats of wild pistachio species are mostly distributed between 1000 and 2000 m.a.s.l, 25.5% between 15% and 30% slope gradient and 66% of habitats in southern and northern aspects.