سامانه پشتیبانی خدمات اطلاعات

  اخبار و اعلانات

 آمار

تعداد نشریات158
تعداد شماره‌ها6,230
تعداد مقالات67,764
تعداد مشاهده مقاله115,162,625
تعداد دریافت فایل اصل مقاله89,917,838
Zehtabian, GH., Ahmadi, H., Khosravi, H., Rafiei Emam, A.. (1384). THE APPROACH OF DESERTIFICATION MAPPING USING MEDALUS METHODOLOGY IN IRAN. , 10(1), 51-60. doi: 10.22059/jdesert.2005.31881
GH. R. Zehtabian; H. Ahmadi; H. Khosravi; A. Rafiei Emam. "THE APPROACH OF DESERTIFICATION MAPPING USING MEDALUS METHODOLOGY IN IRAN". , 10, 1, 1384, 51-60. doi: 10.22059/jdesert.2005.31881
Zehtabian, GH., Ahmadi, H., Khosravi, H., Rafiei Emam, A.. (1384). 'THE APPROACH OF DESERTIFICATION MAPPING USING MEDALUS METHODOLOGY IN IRAN', , 10(1), pp. 51-60. doi: 10.22059/jdesert.2005.31881
Zehtabian, GH., Ahmadi, H., Khosravi, H., Rafiei Emam, A.. THE APPROACH OF DESERTIFICATION MAPPING USING MEDALUS METHODOLOGY IN IRAN. , 1384; 10(1): 51-60. doi: 10.22059/jdesert.2005.31881

THE APPROACH OF DESERTIFICATION MAPPING USING MEDALUS METHODOLOGY IN IRAN

Desert
مقاله 6، دوره 10، شماره 1، اسفند 2005، صفحه 51-60    اصل مقاله (589.83 K)
شناسه دیجیتال (DOI): 10.22059/jdesert.2005.31881
نویسندگان
GH. R. Zehtabian* 1؛ H. Ahmadi2؛ H. Khosravi3؛ A. Rafiei Emam4
1Prof .of University of Tehran
2Prof. of University of Tehran
3Former Graduated student of Natural Resoures Faculty , University of Tehran
4staff of Desert Research Division, Research Institute of Forests and Rangelands.Tehran.Iran
چکیده
Desertification process as a great problem affects most of the countries in the world specially developing
countries. This process has a high rate in arid and semi-arid countries such as Iran. The main objective of this
research was to investigate land degradation status and desertification mapping of Kashan area. Different
studies have been carried out in the world in order to assess desertification resulted in production of different
regional models for their application in another region the indices should be re-investigated and adjusted to
local conditions. So in this study, the newest method for assessment and ,mapping of desertification was used.
The method was carried out by European Commission (EC) at the MEDALUS project and booked as ESAs in
1999. All indices of the model were revised before using, and regarding to the region condition these indices for
land degradation were defined as key indices which were: hydrological index, wind erosion and climate index,
and each index has some layers getting from their geometric mean. Method were parameterized and tested for
Kashan area (91383 he) with dry climate. Thematic databases were integrated and elaborated by using a GIS
and its spatial modeling function. Finally by means of all the above mentioned information land degradation
mapping was provided. The area was presented as a present situation map of desertification on area. Among
the total studying area about 29867 ha is, under average class, 3600 ha is high class and 24021 ha is under
very high class desertification
آمار
تعداد مشاهده مقاله: 2,527
تعداد دریافت فایل اصل مقاله: 1,722


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب