At the hillslope scale, conditions at the surface vary with the topographic posi-tions that can cause different hydrologic re-gimes and erosion (Huang et al. The AgNPs concentration in the runoff sediments increased with subsequent applied rain events. It can lead to degradation of land productivity and water pollution, which limit human survival and development. Soil erosion on cultivated land was primarily affected by moisture content, while on uncultivated land, it was mostly affected by slope steepness. It was observed that values of sediment outflow rate and average sediment concentration had a good correlation with rainfall intensity and land slope for each mulch treatment. The lowest runoff coefficients and the highest soil loss in regime 2 were found in shrub and forest land, respectively, which differed from that of regime 1. and sediment yield was recorded. Besides, some researchers observed that runo volume and After each erosive rainfall (12 events), Runoff and suspended sediment samples were collected in each plot׳s tank which is located on hillslopes of the basin of Khamsan. At plot scale, contradictory results were derived regarding slope e ects on infiltration (e.g., [17,18]) and soil erosion (e.g., [19,20]). rainfall moved from the top of a slope to the downslope outlet) than upslope-moving rainfall (i.e. Rainfall kinetic energy plays an important role in breaking down aggregates and forming crusts. The duration of rainfall was fixed (10 minutes) for every mulch treatment. Production and hosting by Elsevier B.V. International Soil and Water Conservation Research, https://doi.org/10.1016/j.iswcr.2015.10.001. Erosion agents and patterns profoundly affect hillslope soil loss characteristics. Therefore, the soil erosion rate increases strongly with increasing organic content and clay content. Rainfall intensity plays a dominant role in soil erosion, while rainfall accumulation is the main influencing factor for runoff. Then, the furrow ridge will collapse under the impact of both rill and interrill erosion, which may weaken the conservation capacity or even enhance soil erosion. Soil erosion poses a major threat to the sustainability of natural ecosystems. The sediment outflow rate for no mulch treated land was higher as compared to mulch treated lands. Neglecting the slope effect on infiltration would generate In the present study, hay mulch was selected to observe the effect of mulching in soil loss reduction. Results showed that in lower rainfall intensities a linear function fits the relationship between soil loss and rainfall intensity whereas this function tends to be non-linear at higher intensities. At the hillslope scale, conditions at the surface vary with the topographic positions that can cause different hydrologic regimes and erosion … In semiarid regions, rainfall is one of the primary factors affecting soil erosion and crop production under rain-fed agriculture. A laboratory rainfall simulation study was conducted on an Ultisol from subtropical China to investigate the effect of rainfall kinetic energy on crusting, infiltration, runoff, and erosion. Erosion rates were proportional to rainfall, and increase with increasing clay content. Effects of Soil Erosion. Higher concentrations of AgNPs in soil were detected in the BS than in the Sf likely due to the BS having more fine particles (silt and clay). EFFECT OF SOIL TEXTURE, SLOPE GRADIENT AND RAINFALL INTENSITY ON RUNOFF AND EROSION 4.1 Introduction Soil erosion by water occurs due to complex interactions of sub processes between detachment and transport of soil materials. The soil critical shear stress, rainfall intensity, and temporal patterns have great influences on the slope effect trend, while the other soil erosion parameters, soil type, hydraulic conductivity, and antecedent soil moisture have minor impacts. Water ways may also be blocked, and it may affect water quality. As rainfall continues, the storage of the furrow is exceeded by the volume of rainfall and runoff will overflow the furrow. > rainfall intensity > organic content in the soil. Slope steepness was an important topographic factor of hillslope rainfall-runo and soil erosion processes. These effects were significantly different from those in the USLE (Universal Soil Loss Equation), which underpredicted erosion at low slopes. Soil moisture content and organic matter make up are some of the soil component aspects that determine erosivity of wind or rainfall. 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