It can be stated there has been climatic changes in all spatial and historical Iran of the earth. Mechanisms of the climatic changes are very complex and there is no uniformity in consequences resulted from these changes, in the forms of land. Thus reading a model for climatic changes of the earth is a little complex too. Particularly these climatic changes may have relaition with numerous factors such as: monthly- seasonly and yearly changes; periodic changes of the temperature; atmospheric precipitation; humidity; evaporation and transpiration and so on. much of the climatic and geomorphic information and the most interesting have been obtained only in the recent century. in this essay (article) discus about climatic changes in contemperary with geomorphic changes in long time and short time period, with paying attention historical studies of Zayande rood, A.J. Chay stream, Cheel Gazi basin, Khansar stream, Shir Kohe and west Ardestan.
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