Soil and Water Conservation Effects of Contour Reverse Slope Terraces on Red Clay Sloping Farmland against Short and Heavy Rainfall

Table 8

Surface and underground cumulative sediment modulus and the percentages on bare slope and contour reverse slope.

Rainfall intensity (mm/h)	Bedrock porosity (%)	Contour reverse slope terrace				Bare slope
		(g/m^2)	(g/m^2)	(%)	(%)	(g/m^2)	(g/m^2)	(%)	(%)
15	1	2.62	0.11	95.9	4.1	4.84	0.09	98.2	1.8
	3	0.27	0.27	50.0	50.0	1.60	0.20	88.9	11.1
	5	0.22	0.36	38.5	61.5	1.20	0.22	84.5	15.5
30	1	12.73	0.24	98.1	1.9	32.96	0.18	99.5	0.5
	3	7.13	0.29	96.1	3.9	16.29	0.20	98.8	1.2
	5	0.64	0.44	59.2	40.8	2.96	0.29	91.1	8.9
50	1	38.07	0.31	99.2	0.8	54.20	0.22	99.6	0.4
	3	10.16	0.38	96.4	3.6	29.07	0.24	99.2	0.8
	5	7.76	0.96	89.0	11.0	23.89	0.53	97.8	2.2

Note: = surface cumulative sediment modulus; = underground cumulative sediment modulus; = surface sediment proportion; = underground sediment proportion.