《Table 1 Selected chemical and physical properties of the soil used in this study》

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《Effect of soil management on soil erosion on sloping farmland during crop growth stages under a large-scale rainfall simulation experiment》

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Note:CEC，cation exchange capacity.

The experiment was conducted in runoff plots that were built in 2009 and located at the Laboratory of Soil and Water Conservation，Northwest A&F University，Yangling，China.The experimental runoff plots were 4.0 m in length and 1.0 m in width，with a depth of 0.6 m and a slope of 8.7%（Fig.1），thereby representing a slightly sloping farmland in the field according to the classification of agricultural land on the Loess Plateau region.Topsoil was collected from the 0–30 cm layer of farmland in Yangling，placed in the plots，and gently crushed.The soil was clay loam，and its major chemical and physical properties were shown in Table 1.Before placing the soil into the plot，a10-cm layer of sand was laid at the bottom to allow free drainage.In order to obtain soil properties similar to the natural condition，the plots filled with disturbed soil were left for one year to allow natural compaction.At the lower end of each plot，an aluminum sheet served as an outlet for collecting runoff and sediment samples.