Optimizing soil conservation treatments with combining effective factors in water erosion process (Case study: Farhzad Watershed)
Subject Areas : forest
mohammad hemmati
1
(
assistant professor, Department of Natural Geography, Azad University – Yadegare Emam Khomeni Rah (shahre -e- ray )Branch (Iran).
)
mahboobeh ghasemi
2
(
دانشجوی دوره کارشناسی ارشد کاربرد ژئومرفولوژی در علوم محیطی، گروه جغرافیای طبیعی، دانشگاه آزاد اسلامی واحد یادگار امام خمینی (ره)، شهرری، تهران، ایران
)
Keywords: GIS, Water Erosion, Environmental crises, erosion Intensity,
Abstract :
In the recent decades, soil erosion rates in Iran have increased, so during the 1951 until now, a growth rate of 420 percent was associated with the process. Now the main problem is due to soil conservation and land management to become one of the major concerns. Most of the country's vast watershed areas and limited financial resources and administrative, are causing managers of basins for recognizing the lands with priority, looking for better planning. The models and methods that are discussed in this context is sometimes difficult because of the variety of factors and their calculation, the performance is not good, Therefore, a simpler method of acceptance is high. This study was conducted to identify the critical points of the soil erosion in the watershed Farahzad of cumulative erosion index (CEI) was used. in this method, slope land, geology and land use as the most important factors were considered in the development of water erosion. And combining them based on the GIS, the cumulative index of erosion estimation and classification, the various fields of priority areas for executive soil conservation operation in Farahzad watershed were identified and classified.
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