{"title":"Application of GIS and Statistical Multivariate Techniques for Estimation of Soil Erosion and Sediment Yield","authors":"Masoud Nasri, Ali Gholami, Ali Najafi","volume":40,"journal":"International Journal of Environmental and Ecological Engineering","pagesStart":122,"pagesEnd":125,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/9779","abstract":"In recent years, most of the regions in the world are\r\nexposed to degradation and erosion caused by increasing\r\npopulation and over use of land resources. The understanding of\r\nthe most important factors on soil erosion and sediment yield are\r\nthe main keys for decision making and planning. In this study, the\r\nsediment yield and soil erosion were estimated and the priority of\r\ndifferent soil erosion factors used in the MPSIAC method of soil\r\nerosion estimation is evaluated in AliAbad watershed in southwest\r\nof Isfahan Province, Iran. Different information layers of the\r\nparameters were created using a GIS technique. Then, a\r\nmultivariate procedure was applied to estimate sediment yield and\r\nto find the most important factors of soil erosion in the model. The\r\nresults showed that land use, geology, land and soil cover are the\r\nmost important factors describing the soil erosion estimated by\r\nMPSIAC model.","references":"[1] Feiznia, S., Mokhtari, A. and Ahmadi, H., (2002) Application of\r\nremote sensing in providing land use and ground cover information\r\nlayers in MPSIAC erosion model, Pajuhesh -va- Sazandegi\r\njournal(Iranian).\r\n[2] Foster R. H., Maureen V., Warren P., Barten, K. (1995) Comparative\r\nevaluation of land cover data sources for erosion prediction. Water\r\nResources Bulletin, Vol 31,no. 6,991-999.\r\n[3] Gabson, Gd. , (1992), Applied multivariate data analysis, Volume 2 :\r\ncategorical and multivariate methods, Springer - Verlag, 731p.\r\n[4] Gholami, A., (2005), Application of remote information layers in\r\nMPSIAC erosion model (AliAbad watershed in the southwest of\r\nIsfahan Province, Iran), Msc thesis, Islamic Azad University, Science\r\nand Research Campus, Tehran, Iran.\r\n[5] Johnson. C.W. Gebhardt. K.A. (1992) Predicting sediment yields\r\nfrom saga brush rangeland for proceedings of the workshop on\r\nestimating erosion and sediment yield on rangelands. Tucson Aritong,\r\nMarch 1982.V.5.Department of agriculture ARM-W-26.p:145-156.\r\n[6] Logan T.J., Urban D.R., Adams J.R., and Yaksichs, (1982) Erosion\r\ncontrol potential with conservation tillage in the Lake Erie basin:\r\nestimates using the universal soil loss equation and the land resource\r\ninformation system (LRIS). Reprinted with permission of Journal of\r\nSoil and Water Conservation, 37: 50-55.\r\n[7] Zachar, D., (1982). Soil erosion, development in soil science, Elsevier\r\nscientific publishing company. C. Zechelarakia. Pp: 547.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 40, 2010"}