Document Type : Research Paper
Authors
- Akbar Gandomkar Ghalhary
- Mohammad Khosroshahi
- Gholam reza Godarzi
- Hojat ... ZAhedi pur
- Esmaeil Azez abadi
Abstract
Desert is a location in which life of plant and animal is hardly possible. In desert formation, different parameters including: climate, geology, vegetation, pedology, hydrology and geomorphology are special and their interaction to each other plays an important role. For desert area vegetation and their boundaries, detailed investigation on such parameters and their interaction to each other is necessary. In this research, desert area of Markazi province was studied from the view point of vegetation. With determination of desert area boundary and gathering detailed data on such an area, the combating desertification and proper use and planning of desert area is possible. For this reason, first of all, the dominant vegetation types were determined and digitized using GIS with Ilwis academic program software. Then the dominant vegetation types were divided to different groups. The map of desert area and their boundaries were determined with taking into consideration the existing data and information and vegetation types characteristics. The result shows that the total desert vegetation types are 276074 ha with 21 special desert vegetation types and their potential capacity were determined. The result also show that the widest desert vegetation types are Hultemia persica – Scariola orientalis with 77833.8 ha which are distributed in Saveh, Arak, Delijan and Khomain townships and smallest desert vegetation type is Nitraria schoberri with 299.5 ha in marginal salty land of Mayghan playa. Finaly, vegetation map with boundaries of 21 desert vegetation types produced for this study area. ation types
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