| The effects of slope on solute concentration in runoff on the loess slope |
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| DOI：10.7606/j.issn.1000-7601.2009.04.34 |
| Key Words: rainfall-runoff solute in runoff loess slope |
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| Abstract: |
| Serious soil erosion reduce the amount of nutrient in soil losses, and the slope degree is one of the main factors of effect soil solute transporting into runoff. In the paper the effects of slope degree on the soil solute transport into runoff was further analyzed through the experimental data in field. The results indicate that runoff amount and velocity may inflect the effect of slope on the runoff formation. The runoff amount reaches to the maximum value when the slope degree is 15 for the fixed rainfall intensity. The effect of sole degree on the soil solute transport into runoff may be infected by the runoff a
mount, and the amount of solute in runoff increases as the runoff amount increases. The power function was used to fit the experimental data of the solute concentration in runoff. The results indicate that the power function may be used to fit the experimental data of the solute concentration in runoff, and the results may provide some guidance for analysis of the features of the soil solute transport with runoff. |
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