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Effect of Natural Rainfall on Soil Erosion and Nutrient Loss in Loess Slope Land

Yin Wu-jun

Open publisher page 1 citations

Abstract

In order to research the effect of natural rainfall and slope on soil erosion and soil nutrient loss in the Loess Plateau,the GanJing Town of Heyang County in Weibei is selected to conduct the experiment.The slopes of runoff plots are set to 5°,10°,15°.The amount of runoff yield,sediment transport and soil nutrient loss are measured with the method of observation in the runoff field.The results show that in the case of the same slope,the amount of runoff yield,sediment transport and soil nutrient loss all increase with the increase of rainfall.Besides,under the condition of the same rainfall,the amount of runoff yield and the sediment transport all increase with the increase of the slope.And the variation degree from 5 ° to 10 ° is larger than that of 10 ° to 15 °,and the soil nutrients loss also increases with the increase of the slope.

About this research paper

What this paper is about

In order to research the effect of natural rainfall and slope on soil erosion and soil nutrient loss in the Loess Plateau,the GanJing Town of Heyang County in Weibei is selected to conduct the experiment.The slopes of runoff plots are set to 5°,10°,15°.The amount of runoff yield,sediment transport and soil nutrient loss are measured with the method of observation in the runoff field.The results show that in the case of the same slope,the amount of runoff yield,sediment transport and soil nutrient loss all increase with the increase of rainfall.Besides,under the condition of the same rainfall,the amount of runoff yield and the sediment transport all increase with the increase of the slope.And the variation degree from 5 ° to 10 ° is larger than that of 10 ° to 15 °,and the soil nutrients loss also increases with the increase of the slope.

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Available abstract

In order to research the effect of natural rainfall and slope on soil erosion and soil nutrient loss in the Loess Plateau,the GanJing Town of Heyang County in Weibei is selected to conduct the experiment.The slopes of runoff plots are set to 5°,10°,15°.The amount of runoff yield,sediment transport and soil nutrient loss are measured with the method of observation in the runoff field.The results show that in the case of the same slope,the amount of runoff yield,sediment transport and soil nutrient loss all increase with the increase of rainfall.Besides,under the condition of the same rainfall,the amount of runoff yield and the sediment transport all increase with the increase of the slope.And the variation degree from 5 ° to 10 ° is larger than that of 10 ° to 15 °,and the soil nutrients loss also increases with the increase of the slope.

Key concepts: Surface runoff, Environmental science, Loess, Erosion, Nutrient, Hydrology (agriculture), Sediment, Loess plateau

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