Advances in Civil Engineering

Research Article

Effects of Rainfall Intensity and Vegetation Cover on Erosion Characteristics of a Soil Containing Rock Fragments Slope

Relationship between the accumulated runoff volume and the accumulated sediment load under different vegetation covers and rainfall intensities.


Plots	Rainfall intensity (mm/h)	Regress equation	Determination coefficient R²

CK	60	Q_s = 0.9099Q_r^1.4249	0.9998
	90	Q_s = 6.0242Q_r^1.0792	0.9993
	120	Q_s = 22.885Q_r^0.9744	0.9983

S1	60	Q_s = 0.2766Q_r^1.1847	0.9946
	90	Q_s = 0.3249Q_r^0.9815	0.9993
	120	Q_s = 1.9578Q_r^1.1494	0.9950

S2	60	Q_s = 0.4155Q_r^0.9903	0.9917
	90	Q_s = 0.1046Q_r^1.1679	0.9842
	120	Q_s = 3.0267Q_r^0.9969	0.9991

S3	60	Q_s = 0.2814Q_r^1.1162	0.9977
	90	Q_s = 0.1996Q_r^1.0846	0.9989
	120	Q_s = 0.4393Q_r^1.3764	0.9970

S4	60	Q_s = 1.5730Q_r^0.8379	0.9983
	90	Q_s = 2.1957Q_r^0.9358	0.9988
	120	Q_s = 5.4096Q_r^0.9125	0.9958

S5	60	Q_s = 0.3672Q_r^0.9238	0.9964
	90	Q_s = 2.0375Q_r^0.8202	0.9984
	120	Q_s = 0.7500Q_r^1.2572	0.9997

S6	60	Q_s = 0.3503Q_r^1.1694	0.9814
	90	Q_s = 0.4018Q_r^1.2604	0.9943
	120	Q_s = 3.3334Q_r^1.0211	0.9995

S7	60	Q_s = 0.0097Q_r^2.3695	0.9702
	90	Q_s = 0.4556Q_r^0.9495	0.9993
	120	Q_s = 1.2953Q_r^1.1119	0.9979