Determination of Susceptibility to Rill and Interrill Erosion of some Semi-Arid Soils using Rainfall Simulator in Laboratory Conditions

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Vaezi A. R.; Sahandi Kh.; SADEGHIAN N.

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Journal: Journal of Water and Soil Science Year:2020 | Volume:24 | Issue:2 Page(s): 1-11

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Information Journal Paper

Title

Determination of Susceptibility to Rill and Interrill Erosion of some Semi-Arid Soils using Rainfall Simulator in Laboratory Conditions

Author(s)

Vaezi A. R. | Sahandi Kh. | SADEGHIAN N. | Issue Writer Certificate

Keywords

Soil textureQ2

Silt contentQ1

Rainfall simulatorQ2

Organic matter contentQ1

Soil lossQ1

Abstract

In semi-arid regions, soils are weakly aggregated and subjected to water erosion processes especially rill and interrill erosion. There is no information on the rate of these water erosion types in semi-arid soils located in the hillslopes. Therefore, this study was conducted to determine the soils susceptibility to these erosion types in semi-arid region. A laboratory experiment was done in eight Soil textures using in a 0. 6 m × 1 m flume a simulated rainfall with 50 mm. h-1 in intensity for 60 min. Rill and interrill erosion rate was measured using Soil loss amount per flume area and rainfall duration. Based on the results, both rill and interrill erosion rate were significantly varied among the soils textures (P<0. 001). Silt loam was the most susceptible soil to rill erosion (0. 22 g m-2 sec-1) and interrill erosion (0. 15 g m-2 sec-1), whereas sand didn’ t appear any Soil loss by these water erosion types. The compression of Soil loss resulted by rill and interrill erosion among the soil tectures showed that rill erosion rate for sandy clay loam, silt loam, loam and sandy loam was 3. 2, 1. 4, 1. 1 and 2. 8 times higher than interrill erosion rate, respectively. These differences were statistically significant. Silt content was the major factor controlling Soil loss difference in these soils. This study revealed that the study semi-arid soils having higher Silt content appears also higher rill erosion rate than interrill erosion rate.

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APA: Copy

Vaezi, A. R., Sahandi, Kh., & SADEGHIAN, N.. (2020). Determination of Susceptibility to Rill and Interrill Erosion of some Semi-Arid Soils using Rainfall Simulator in Laboratory Conditions. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 24(2 ), 1-11. SID. https://sid.ir/paper/366165/en

Vancouver: Copy

Vaezi A. R., Sahandi Kh., SADEGHIAN N.. Determination of Susceptibility to Rill and Interrill Erosion of some Semi-Arid Soils using Rainfall Simulator in Laboratory Conditions. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2020;24(2 ):1-11. Available from: https://sid.ir/paper/366165/en

IEEE: Copy

A. R. Vaezi, Kh. Sahandi, and N. SADEGHIAN, “Determination of Susceptibility to Rill and Interrill Erosion of some Semi-Arid Soils using Rainfall Simulator in Laboratory Conditions,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 24, no. 2 , pp. 1–11, 2020, [Online]. Available: https://sid.ir/paper/366165/en

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