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Introduction
Approximately, 136 million hectares from 164 million hectares of total area of I.R of Iran falls under renewable natural sources. This is equal to 83% of total land area of Iran which include forests, other wooded lands, rangelands and deserts. The responsibilities of reclamation, development, conservation and sustainable use of these resources rests with Forests, Range and Watershed Management Organization(FRWO)that is responsible for the supply of forest and range products aiming to guarantee the sustainable development of the resources. Therefore, FRWO on the top of his duties has the responsibility of training staffs and experts in the field of natural resources management and based on that has established two specialized training centers to address the growing needs of the sector as follows:�