Document Type : Research Paper
Authors
Abstract
Resistant species to salinity and aridity and temperature fluctuation are approximately introducer of desert. These species have particular morphology compatibling themselves to fragile and acute condition of desert area. Some species accumulate water in their tissues. Some other species decrease leaves area and develope their root systems to use groundwater resources and some have particular phytocynthesis systems. As a general desert species with different mechanism resist against acut climate condition and unsuitable soil properties of desert regions. Characteristics of desert species distribution area can be determined the geographical domain of desert area. In this study dominant plant types in certain grupes and some of main ecological properties were assigned and related map in GIS environment was prepared. Finally, according to public characteristics of dominant species of every plant type and accompany species, desert area was sperated. In study area 22 plant group, each consist of some plant types was recognized. The distribution area of plant groups of Zygophyllum atripolicoides, Gymnocarpos decander and Hammada salicornica is about 730132, 599941 and 53260 hectar respectively.
Keywords
)