اولويت سنجي نظام برتر ترويج در حفاظت آب، خاك و پوشش گياهي (بيابان زدايي): فرآيند تحليل سلسله مراتبي (AHP)

Determination of Preferable Extension System for Preventing Desertification: an Application of Analytical and Hierarchical Process(AHP)

In the recent years Governmental Extension System (GES) has been criticized for many reasons such as: High rocketing costs, limitation of Extension resources for developing operational activities, un-sufficient technical know - how and well trained personnel and un-sufficient contacts with the farmers because of limitations in the number of extension agents. The above mentioned factors have caused approaching to Private Extension System (PES) in many parts of the world .There is a need to develop new methods and approaches in order to use the potentials of the Private Extension System in areas which are not profitable . The aim of this research was to compare the potentials of the GES and PES regarding water, soil and land green coverage for the purpose of preventing desertification and to introduce a preferable theoretical system. In this surveying research a questionnaire along with AHP technique has been used. The population of the study has been the Markazi provinceʹs natural resources experts. The reliability and validity of the questions were acceptable. The results of this study based on AHP technique an the opinions of the natural resourcesʹ experts show that Governmental Extension System for preventing desertification has been preferred. Also in many cases Private Extension system have positive role in combating with desertification.