Paper Information

Journal:   GEOGRAPHICAL JOURNAL OF CHASHMANDAZ-E-ZAGROS   WINTER 2010 , Volume 1 , Number 2; Page(s) 55 To 64.
 
Paper: 

AN ASSESSMENT OF WATER EROSION OF SARAB SEFID VENAEE OF BOUROJERD WATERSHED BY REVISED MPSIAC

 
 
Author(s):  ZANGENEH ASADI M.A., SADIDI J., KOSHANFAR A.
 
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Abstract: 

In this study, it has been tried to ivestigate Assessment of water erosion of Sarab Sefid Venaee bourojerd watershed with aid revised model of PSIAC by common a methods of erosion& sediment. First the and feature of water erosion were identified by considering geomorphic forms of region. Then, erosion and sediment of Sarb Sefid watershed was examined with revised model of PSIAC and was investigated by exploiting the sattelite snapshots, field works and sampling differet layers. By examining all nine factors of PSIAC, erosion and sediment of the water was estimated. The map of sensitivity to erosion and sedimentation of different geological component and stone units was obtained using the model idexes and it was showed that the entire watershed is in the medium class of sedimentation. An assessment all nine PSIAC factory &.weith mean of each factor indicated that the effect of lithology on the amount & method of erosion is less than other invairomental factors (medium erosion). & the topological factor was indentified. Also, after determining nine considered factors in PSIAC Model, it shows that the amount of sediment in Sarab Sefid Venaee is 342/2 m3/km2/year, and the specefic erosion amounts to1194 m3/km2/year. it is concluded that Goorpey component & marn unit kgu, mf has higher sedimentation index comparing to ohter components.

 
Keyword(s): SARAB SEFID VENAEE WATERSHED, SEDIMENTATION, SENSITIVITY TO EROSION, AND REVISED MODEL OF PSIAC
 
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