| تعداد نشریات | 24 |
| تعداد شمارهها | 924 |
| تعداد مقالات | 8,295 |
| تعداد مشاهده مقاله | 16,556,277 |
| تعداد دریافت فایل اصل مقاله | 13,966,762 |
Evaluation of soil losses and sediment yield using modified PSIAC model | ||
| Iran Agricultural Research | ||
| مقاله 13، دوره 36، شماره 1، تیر 2017، صفحه 111-116 اصل مقاله (338.37 K) | ||
| نوع مقاله: Note | ||
| شناسه دیجیتال (DOI): 10.22099/iar.2017.4035 | ||
| نویسندگان | ||
| Abdol Rassoul Zarei* 1؛ M.J. Amiri2 | ||
| 1Department of Range and Watershed Management, College of Agricultural Science, Fasa University, Iran. | ||
| 2Department of water engineering, College of Agriculture, Fasa University, Fasa, I. R. Iran | ||
| چکیده | ||
| ABSTRACT- One of the big problems today human societies are faced with is the problem of soil erosion. In this study, the "MPSIAC model" was used to estimate sediment yield and provide sediment yield map in Cachoyeh watershed. The MPSIAC method incorporates nine environmental factors that contribute to sediment yield of the watershed. These factors are: surface geology, soil, climate, runoff, topography, ground cover, land use, channel and surface erosion. ArcGIS 10.2 software was used to prepare the map of each factor and analyze them to create the sediment yield map and erosion map. According to the results based on MPSIAC model, 94.2 % (476.1km2) of study area was classified in the slight sedimentation and 29.2 % (147.5 km2) of it was classified in the moderate erosion classes. The total sediment yield of basin was calculated as 1236.5 (m3 km−2 year−1) and the total of erosion was calculated as 5091.6 (m3 km−2 year−1). The sensitivity analysis of parameters of MPSIAC model showed that the most sensitive parameters of the model based on their importance were: channel erosion, land cover and geology with Pearson correlation of 0.75 to 0.36. Land use factor was found to have a lower effect than the output model. | ||
| کلیدواژهها | ||
| Keywords:؛ MPSIAC model؛ Sediment yield؛ Erosion؛ SDR؛ GIS | ||
| مراجع | ||
|
Aker, A. (1971). Soil Surface Factors, Determination of erosion condition class. Bureau of Land Management. Department of Interior. USA. Form 7310-12.
Bagherzadeh, A., & Mansouri Daneshvar, M.A. (2013). Evaluation of sediment yield and soil loss by the MPSIAC model using GIS at Golestan watershed, northeast of Iran. Arab Journal Geoscience. 6, 3349-3362.
Ghazanfari, P., YouneszadehJalili, S., & Gholipouri, S. (2014). Study of sediment yield potential of Khor and Sefidarak basins with special reference to the difference between EPM and MPSIAC models, Hashtgerd, Karaj. Applied Sedimentology Journal, 2, 74-87. (In Persian)
Heininger, P., & Cullmann, J. (2015). Sediment matters the challenges. Springer,Heidelberg.
Mahboubi, A., & Pasban, A. (2013). Application of MPSIAC model and GIS in evaluation of soil erosion: an example of Sarghayeh-Sarnish watershed (South of Mashhad). Applied Sedimentology Journal, 1, 88-97. (In Persian)
Mahammadyan, S., & Sururjalhladdin, M.H. (2007). Methods of erosion and sediment estimation base of tentative prevalent models (EPM, MPSIAC, PSIAC) in GoharRud basin, 4th national congress of science and basin management Engineering of Iran, Tehran: Tehran University, 157-176.(In Persian)
Moradi, M., Ghonchepour, D., Nohegar, A., & Mmahoudi, V. (2012). A Comparison of the MPSIAC and EPM models for estimating erosion and sediment in the Poorahmadi catchment. Journal of Environmental Erosion Research. 1, 54-68. (In Persian)
Naqvi, H.R., Athick, A.M.A., Ganaie, H.A., & Siddiqui, M.A. (2015). Soil erosion planning using sediment yield index method in the Nun Nadi watershed, India. International Soilless and Water Conservation Research, 3, 86-96.
Nearing, M.A., Unkrich, C.L., Goodrich, D.C., Nichols, M.H., & Keefer, T.O. (2015). Temporal and elevation trends in rainfall erosivity on a 149 km 2 watershed in a semi-arid region of the American Southwest. International Soilless and Water Conservation Research, 3, 77-85.
Noori, H., Siadatmousavi, M., & Mojaradi, B. (2016). Assessment of sediment yield using RS and GIS at two sub-basins of Dez Watershed, Iran. International Soil and Water Conservation Research, 4, 199–206.
PSIAC. (1968). Report of the Water Management Subcommittee on factors affecting sediment yield in the Pacific Southwest area and selection and evaluation of measures for reduction of erosion and sediment yield. ASCE, 98, No. HY12.
Refahi, H. (1996). Water erosion and its control. Tehran University Press, Tehran.
Zakeri, H.F., Khalil, R., & ShafaiBajestan, M. (2015). Soil erosion and Sediment yield risk Assessment using an empirical Model of MPSIAC for upstream Watershed of Abbaspour and masjed-soleiman dams, SW-Iran. Bullten of Environment Pharmacology Life Science, 5, 73-82. | ||
|
آمار تعداد مشاهده مقاله: 1,947 تعداد دریافت فایل اصل مقاله: 2,435 |
||