Estimation of water erosion and sedimentation content in Ala region of Semnan using PSIAC method

Subject Areas : forest

nahid alipour ¹ ( دانشجوی کارشناسی ارشد مدیریت مناطق بیابانی، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران )
فاطمه Farzanehpey ² ( دانشجوی کارشناسی ارشد مدیریت مناطق بیابانی، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران )
علی torabi ³ ( کارشناس ارشد بیابان زدایی ، اداره کل منابع طبیعی و آبخیزداری استان سمنان، سمنان، ایران )
سمیرا Bakhshinia ⁴ ( . Desert and Dry regions Management graduated, University of Semnan, Semnan, Iran )
طیبه Mesbah Zadeh ⁵ ( استادیار دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران )
سوسن Salagegheh ⁶ ( دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران )

Received: 2016-04-16 Accepted : 2016-12-13 Published : 2016-11-21

Keywords: Water Erosion, Working units, PSIAC method, Ala region of Semnan,

Abstract :

Today, soil erosion and sediment production in watershed are covered to a complicated environment, so preventing emergency of them is one of the most important conservation factors of natural resources. This research done in order to water erosion content estimation using PSIAC method in Ala region of Semnan. PSIAC method investigates the effect of 9 important factors on water erosion process which these factors measured in each working units of under studied region. Results show that waterway working unit had the most effect on water erosion process with erodibility view it located in high class. Other working units including clay lands with Kalootak with score of 48, bare lands without cover with score of 45, clay plain with salts with score of 45, Marne lands without plant cover with score of 24, residential area with score of 93, lands covered with Haloxylon with score of 22, sand dunes covered with Haloxylon with score of 16 and agriculture lands with score of 15 placed in low to partial erodibility classes respectively that respect to their scores, they placed in further priority.  

References:

1-Abedini, M. , Toulabi, S.2013. Efficiency comparison of EPM and WEPP in estimation of soil erosion and sediment rate of Solachai watershed. Journal of researches of quantification geomorphology 2(1), 79-96.(In Persian).    

2-Ahmadi, H, 2007. Applied geomorphology, water erosion (5th Ed). University of Tehran press 688p. .(In Persian).   

3-Alipour, N. Aminbeydokhti, I. , Fatemeh, F. 2012. Studied project of execution plan of desert regions management of south Ala of Semnan, physiography. University of Semnan, faculty of desert studies. .(In Persian).    

4-Kaviyan, S. , Safari, A. 2013. Detection of appropriate model for estimation sediment production using statistical methods in watershed of Babolrood. Journal of applied researches of geography science, 13(30), 111-130.

5-Khodabakhsh, S. Mohammadi, A. Behrooz, R. , Bozorgzadeh, E. 2009. Efficiency of estimation of erosion rate and sediment production in sub basin of Sezar (watershed of Dez dam) using empirical method EPM and MPSIAC with help fuzzy knowledge. Journal of Iran geology, 3(12), 61-51. .(In Persian).   

6-Madadi, A. , Nikpour, S.H. 2013. Estimation of soil erosion and sediment production in watershed of river Zal using PSIAC, MPSIAC, GIS method. Journal of quantitative geomorphology researches, 2 ﴾1﴿, 133-154.

7-Maghsoudi, M. , Habibi, H. 2010. Zonation of soil erosion and sediment estimation in Maryam Negar watershed using empirical models. Journal of earth knowledge research, 1(1), 18-34.

8-Merrit, W.S. Letcher R.A. and Jakeman A.J, 2003. A review of erosion and sediment transport models. Environmental modeling and software, 18.

9-Mohseni, B. , Razaghiyan, H. 2013. Estimation of soil erosion and sediment production in Kesiliyan detector basin using geomorphology method based on MPSIAC model in GIS space. Journal of irrigation and water engineering, 4(14), 49-57. .(In Persian).