List of Articles Zoning

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  1 - Analysis and comparing several climate droughts indicators and determine the best index in southeast of Iran
  zahra hejazizadeh farshad pazhoh haniyeh shakiba
  the drought is the most destructive weather events which cause significant causes both in natural resources sector and human’s life. The aim of this research is to compare the performance of drought’s indexes and determining the best index in the region of southeast of More

  the drought is the most destructive weather events which cause significant causes both in natural resources sector and human’s life. The aim of this research is to compare the performance of drought’s indexes and determining the best index in the region of southeast of Iran. To this purpose with using 30 year of daily precipitation data (1985-2014) from meteorological organization and with using 8 most widely used indexes such as standard precipitation, rainfall anomalies, percent of normal, annual precipitation, Niche, the standard score, deciles and Chinese Z in 19 meteorological stations of Kerman, Hormozgan and Sistan va baloochestan the accuracy of each indicators examined in determining the drought intensity. Also the zoning has done in arc GIS9.3 for the driest year in the statistical time period and comparing the most severe drought category in 2 selected index. The accuracy of each index analyzed in 2 annual and monthly scales. In annual scale is used the efficient measures of minimum precipitation’s symmetry years with most severe droughts in region’s stations. The results showed that in the monthly scale in order to analyze the southeast drought of the country the dynamic index of standard precipitation (SPI) in a time period of 6 and 12 month had the best function. But in annual scale the rainfalls anomalies indexes (RAI) and Docile (DI) in all the stations had showed the minimum precipitation amounts with severe droughts which determined as the best index. Also the Niche index had the weakest function in determining the drought intensity in southeast of Iran’s stations. Manuscript profile
• Open Access Article
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  2 - Evaluation and zoning of Karstic transformation using the hierarchical analysis method(AHP) (Case study: Kalat mountainous basin, Razavi Khorasan)
  mohsen rezaei arefi mohammad ali zangeneh asadi aboalfazl behniyafar Mohammad javanbakht
  The karst transformation process is a complex process influenced by various variables. Understanding the factors contributing to the development and zoning of karst evolution has a special place in the studies of karst land management and resources. The purpose of thi More

  The karst transformation process is a complex process influenced by various variables. Understanding the factors contributing to the development and zoning of karst evolution has a special place in the studies of karst land management and resources. The purpose of this study was to evaluate and zoning of karst development potential in Kalat mountain basin in Khorasan Razavi province using AHP method. In this study, using hierarchical analysis, lithology information layers, slope distance, slope direction, elevation, distance from stream, distance from fault and land use were considered as operating maps. Also, in order to extract the karst development potential model, the above layers were invoked in GIS environment. The different layers of information were classified as benchmarks by expert judgment and field visits. Finally, according to the obtained weight, karst development zoning map was obtained. The results showed that out of the total area of Kalat basin, 19.04% were in the less developed class, 24.57% in the under developed class, 42.88% in the middle class and 14.38% in the developed class. The lithology factor of the region with the highest value of 0.53 was the most important factor controlling karst development potential in the study area. It is dedicated. The results show that geological factors ، altitude ، topography and distance from the waterway respectively have the most important role in the current karst development in this region. Manuscript profile