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Paper Information

Journal:   IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH   2005 , Volume 12 , Number 3 (20); Page(s) 249 To 262.
 
Paper: 

DESERTS DOMAIN IN ESFAHAN PROVINCE BY CLIMATOLOGICAL FACTORS

 
 
Author(s):  ABTAHI SEYED MORTEZA, KHOSROUSHAHI MOHAMMAD*
 
* RESEARCH INSTITUTES OF FORESTS AND RANGELANDS, TEHRAN, I. R. IRAN
 
Abstract: 

Investigation of documents and references related to desert pattern shows that there is not any integrated definition for deserts. In this article, by considering the climatic factors, desert and non-desert areas have been determined. For this purpose, after identification of climatological stations in Esfahan province and investigation about their statistics quantitatively and qualitatively, 46 stations with enough data were selected. The related maps were prepared in GIS. The factors for desert identification could be found mainly among those, which compose desert climate. The amount of precipitation, coefficient of variation, irregularity coefficient and daily average intensity of precipitation, annual average temperature and amount of evaporation are the factors which were calculated for each station separately.
By use of averaging method, the isohyet's maps were prepared for each factor. Through determination of a number as a scale for distinguishing of desert and non - desert area for each map and checking them on the site and overlaying the maps, a buffer were made between the verification lines which did not coincide with each other. As the result, 3 different zones could be distinguished on the final map. The internal zone resembles the specifications of desert, outer zone non - desert and the zone located inside the buffer as semi - desert area. The result of this research shows in Esfahan province, desert, semi desert and non desert areas are 4840450, 1775412, 4840450 hectares respectively.

 
Keyword(s): DESERT, CLIMATOLOGY, GIS, ESFAHAN PROVINCE
 
References: 
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