Prof,of University of Tehran
M.Sc. In De-desertificaton
Associate Professor , Faculty of Natural Resources.University of Yazd
Professor,Faculty of Natural Resources , University of Tehran
M. Sc.In Watershed management
There are different models for mapping and evaluation of desertification condition, such as global
FAO_UNEP model. There are also several models for evaluation of desertification in Iran. In this study, tow
fol/owing methods was used:
1-ICD method, (Iranian Classification of Desertification).
2- MICD method, (Modified Iranian Classification of Desertification).
In this research, at first, these models were considered and indices and factors were improved. Then, working
unit map in this region was made by geomorphologic method and land use of each working unit was
determined. This map has 14 working unit. At last, evaluation of desertification condition was determined in this
region by ICD and MICD methods. The results methods were:
- In ICD method, from an intensity of desertification point of view, Fakhrabad -Mhriz region is in low and medium
classes. In this region the low class is about 82351 hectare (91.59%) and the medium class is about 7565
hectare (8.41%) of total area.
In MICD method, this region has four classes of calm, low, medium and high.
The calm class is about 33327 hectare (37.06%), low class is about 8346 hectare (9.28%), medium class is
about 37245 hectare (41.42%) and high class is about 10998 hectare (12.23%).
According the results of this investigation and by comparing them with the condition which have been observed
in the Fkhrabad-Mehriz region, the MICD is better method for evaluation of desertification condition in this