THE EFFECT OF SOIL PHYSICAL AND CHEMICAL PROPERTIES ON RUNOFF GENERATION AND SEDIMENT YIELD USING RAINFALL SIMULATOR

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MAHMOODABADI M.; CHARKHABI A.H.; RAFAHI H.

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Paper Information

Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2007 | Volume:8 | Issue:2 Page(s): 1-16

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Title

THE EFFECT OF SOIL PHYSICAL AND CHEMICAL PROPERTIES ON RUNOFF GENERATION AND SEDIMENT YIELD USING RAINFALL SIMULATOR

Author(s)

MAHMOODABADI M. | CHARKHABI A.H. | RAFAHI H. | Issue Writer Certificate

Keywords

PHYSICAL AND CHEMICAL PROPERTIESQ2

RAINFALL SIMULATORQ3

RUNOFF GENERATIONQ3

SEDIMENT YIELDQ3

SEDIMENT CONCENTRATIONQ3

SURFACE AND EMBEDDED GRAVELQ3

Abstract

Among different land degradation processes, soil erosion is a serious threat to the soil and water resources in Iran. Soil PHYSICAL AND CHEMICAL PROPERTIES have an important role in runoff and sediment. The purpose of this study was to investigate the effect of some of these agents on SEDIMENT YIELD, RUNOFF GENERATION and SEDIMENT CONCENTRATION, under interrill erosion process at the field. The experiments were done on Golabad soils, with annual precipitation of 170 mm. A portable RAINFALL SIMULATOR was used in 9 homogenous sites of the watershed with 3 replications (overall 27 plots). Rain intensity of 35 mm hr–1 for 40 minutes was run on 1m2 plots. Runoff and sediment samples were collected from each plot. Some of soil PHYSICAL AND CHEMICAL PROPERTIES consisted of texture, gravel content in two positions, moisture content, pH, EC, CaCo3 and organic matter were determined. The results indicated that increasing clay content, SEDIMENT YIELD and its concentration increased while, sand fraction decreased runoff and sediment. Surface gravel had an important role in erosion control. Increasing SURFACE AND EMBEDDED GRAVEL, runoff rate increased and decreased, respectively. Besides, due to surface gravel, SEDIMENT YIELD increased. There were positive and significant relations between moisture content at 0.03 and 1.5 MPa with SEDIMENT YIELD and its concentration. Among chemical properties, pH was entered into the regression model. Also, due to crusting, lime increased erosion. It was concluded that particle size distribution is the main factor which controls SEDIMENT YIELD, RUNOFF GENERATION and SEDIMENT CONCENTRATION under interrill erosion processes in this arid soils.

Cites

EFFECT OF SOIL ANTECEDENT MOISTURE CONTENTS ON RUNOFF AND SEDIMENTATION VALUES WITH SIMULATED RAINFALL METHOD

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APA: Copy

MAHMOODABADI, M., CHARKHABI, A.H., & RAFAHI, H.. (2007). THE EFFECT OF SOIL PHYSICAL AND CHEMICAL PROPERTIES ON RUNOFF GENERATION AND SEDIMENT YIELD USING RAINFALL SIMULATOR. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 8(2), 1-16. SID. https://sid.ir/paper/28143/en

Vancouver: Copy

MAHMOODABADI M., CHARKHABI A.H., RAFAHI H.. THE EFFECT OF SOIL PHYSICAL AND CHEMICAL PROPERTIES ON RUNOFF GENERATION AND SEDIMENT YIELD USING RAINFALL SIMULATOR. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH[Internet]. 2007;8(2):1-16. Available from: https://sid.ir/paper/28143/en

IEEE: Copy

M. MAHMOODABADI, A.H. CHARKHABI, and H. RAFAHI, “THE EFFECT OF SOIL PHYSICAL AND CHEMICAL PROPERTIES ON RUNOFF GENERATION AND SEDIMENT YIELD USING RAINFALL SIMULATOR,” JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, vol. 8, no. 2, pp. 1–16, 2007, [Online]. Available: https://sid.ir/paper/28143/en

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