The present study was carried out on an area of 13,284 acres, under the executive management, located in Guilan province, in the north of Iran. Firstly, physical factors of the area were analyzed. Then, the amount of road construction, forestation, and harvested volume, as well as the harvesting method in the region were determined for the years between 1993 and 2010. the average annual amount of sediment production in the whole region, within a period of 18 years, has increased annually at the rate of 3.54 tons per square kilometers (R2=0.56) at a confidence level of 95%. Operations management and management methods used in forest areas affect the amount of sediment production. Forestry management using a clear cutting method and extensive harvesting in the region caused an increase in the amount of sediment production, with a positive correlation coefficient equal to 0.71. So are suggested forestry methods which are in harmony with nature

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