TY - JOUR JF - JSTNAR JO - jwss VL - 18 IS - 69 PY - 2014 Y1 - 2014/12/01 TI - Experimental Study of Soil Salinity and Alkalinity, Slop and Rainfall Intensity Effect on Splash Erosion Rate in Selected Soils from Khuzestan Province TT - مطالعه آزمایشگاهی اثر شوری و قلیائیت، شیب و شدت بارش بر نرخ فرسایش پاشمانی خاک در خاک‌های منتخب استان خوزستان N2 - Salt with various kinds and contents is one of the most important factors affecting soil splash erosion rate. The aim of the present study was to evaluate various salinity and alkalinity levels on splash erosion rate and its components (upslope, down slope and total splash) in different slopes. A factorial experiment with three factors was conducted in a completely randomized design with three replications by a Multiple Splash Set (MSS). The treatments included splash erosion rate at 4 levels of salinity and alkalinity (EC: 2 dSm-1, SAR: 2، EC: 15, SAR: 24 ،EC: 56, SAR: 42، EC: 113, SAR: 47), two levels of rainfall intensity (2.5 and 3.5 mm.min-1) and 5% and 15% slope levels. The results showed that the organic carbon and mean weight diameter (MWD) decreased at higher levels of salinity and alkalinity. The effect of saline and sodic, slope and rainfall intensity levels on the splash erosion rate and its components was significant. Also, slope×saline and sodic, rainfall intensity×saline and sodic, slope×saline and sodic×rainfall intensity interaction treatment caused a significant increase in splash erosion rate and its components. It seems that splash erosion is increased in saline and sodic soils due to the reduction in OC and MWD SP - 117 EP - 129 AU - Khalili Moghadam, B. AU - Ghorbani, Z. AU - Shahbazi, E. AD - Dept. of Soil Sci., Khuzestan-Ramin Agric. and Natur. Resour. Univ., Iran. KW - Multiple splash set KW - Salinity and Alkalinity KW - Splash erosion UR - http://jstnar.iut.ac.ir/article-1-2867-en.html ER -