WANG Zhi-gang, ZHENG Fen-li, LI Jing. Soil Erosion Process on Hillslopes of Purple Soil Under Different Near-Surface Hydrological Conditions[J]. Bulletin of Soiland Water Conservation, 2007, 26(6): 9-79.
WANG Zhi-gang, ZHENG Fen-li, LI Jing. Soil Erosion Process on Hillslopes of Purple Soil Under Different Near-Surface Hydrological Conditions[J]. Bulletin of Soiland Water Conservation, 2007, 26(6): 9-79.DOI:
Soil erosion processes on hillslopes of purple soil under three near-surface hydrological conditions of free drainage
saturation and seepage were studied by stimulated rainfall experiments.Results showed that near-surface hydrological conditions greatly affecting soil erosion processes on hillslopes of purple soil.At slope gradients from 5° to 15°
erosion rate from hillslopes shif ted from 1.31 2.02 g/(min?m2) under free drainage to 1.83 5.50 g/(min?m2) under saturation condition; under seepage condition
erosion rate reached to 4.40 16.41g/(min?m2).Erosion rate under saturation condit ion was 1.40 2.73 times greater than that under free drainage; erosion rate under seepage condition was 3.36 812 times greater than that under free drainage and was 2.40 2.98 times higher than that under saturation condition.Meanwhile
slope gradient had a great impact on purple soil erosion processes.