Based on the data of individual rainfall

runoff and sediment yield of hedgerows sloping farmland from 2012 to 2016 in Suining Soil and Water Conservation Experimental Station

the effect of hedgerows on runoff and sediment yield and microtopography of sloping farmland was analyzed. The results showed that the total runoff depths of the hedgerows were 80% to 84% of the control plots. Meanwhile

the total sediment yields of the hedgerows were 34% to 44% of the control plots. Hedgerow’s effects on sediment yield were better than that on runoff. The runoff depths and sediment yield of the control plots (plot Ⅱ and plot Ⅴ) were significantly correlated with the average rainfall intensity and rainfall (P <0.01). In the hedgerows plots (plot Ⅰ

plot Ⅲ and plot Ⅳ)

the runoff depths and sediment yield were positively correlated with the average rainfall intensity and rainfall. Especially

there were highly significant correlations between runoff depths and rainfall. For three rainfall patterns

there were no significant differences in the runoff depths and sediment yield among different plots. The hedgerows effect on runoff and sediment reduction of rainfall A (short duration

heavy rainfall) was better than that of rainfall B (moderate duration

moderate rainfall) and rainfall C (long duration

light rainfall). After planting the hedgerows

there was sediment accumulation zone near hedgerow lines. The average slope of plot Ⅰ

plot Ⅲ and plot Ⅳ turned to 11.97°

7.73°

and 7.89° from 15°

10°

and 10°

respectively. Finally

hedgerows made sloping farmland benching.