Temporal Variation of Interrill Erosion Affected by Slope Gradient in Soils with Different Texture

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FOROUMADI M.; VAEZI A.R.

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Paper Information

Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2021 | Volume:15 | Issue:52 Page(s): 24-32

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Title

Temporal Variation of Interrill Erosion Affected by Slope Gradient in Soils with Different Texture

Author(s)

FOROUMADI M. | VAEZI A.R. | Issue Writer Certificate

Keywords

Transport of soil particlesQ1

Shallow flowQ1

SedimentationQ2

Raindrops impactQ1

Flow concentrationQ1

Abstract

The process of splash of soil particles by raindrops and their transport by splash or surface Shallow flow is considered as interrill erosion, which can reduce soil fertility and cause pollution of surface water. This research was carried out to investigate the temporal variation of interrill erosion in different soils affected by surface slope. For this purpose, laboratory experiments were carried out on three soils with different texture on four slopes under simulated rainfall with a constant intensity of 30 mm. h-1 in three replications with a total of 36 test units. The results showed that there are significant differences between the slopes in terms of the threshold of occurrence of interrill erosion )P<0. 0001). The threshold for the interrill erosion in the occurred speedy steeper slopes. The coarse textured soil )sandy clay loam) appended hither dependency on slope gradient witch was associated ti its more percentage of coarse particles. In lower slope gradients, the interrill erosion threshold was occurred with more delay after runoff appearance. This study revealed that slope gradients is an important factor controlling time threshold, pick time and rate of interrill erosion during rainfall in semi-arid soils.

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APA: Copy

FOROUMADI, M., & VAEZI, A.R.. (2021). Temporal Variation of Interrill Erosion Affected by Slope Gradient in Soils with Different Texture. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 15(52 ), 24-32. SID. https://sid.ir/paper/403824/en

Vancouver: Copy

FOROUMADI M., VAEZI A.R.. Temporal Variation of Interrill Erosion Affected by Slope Gradient in Soils with Different Texture. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2021;15(52 ):24-32. Available from: https://sid.ir/paper/403824/en

IEEE: Copy

M. FOROUMADI, and A.R. VAEZI, “Temporal Variation of Interrill Erosion Affected by Slope Gradient in Soils with Different Texture,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 15, no. 52 , pp. 24–32, 2021, [Online]. Available: https://sid.ir/paper/403824/en

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