EFFECTS OF SLOPE AND SOIL PROPERTIES ON RUNOFF AND SOIL LOSS USING RAINFALL SIMULATOR, CHEHEL-CHAI WATERSHED, GOLESTAN PROVINCE

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ZARE KHORMIZI M.; NAJAFINEJAD A.; NOURA N.; KAVIAN A.

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Journal: Journal of Water and Soil Conservation Year:2012 | Volume:19 | Issue:2 Page(s): 165-178

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Title

EFFECTS OF SLOPE AND SOIL PROPERTIES ON RUNOFF AND SOIL LOSS USING RAINFALL SIMULATOR, CHEHEL-CHAI WATERSHED, GOLESTAN PROVINCE

Author(s)

ZARE KHORMIZI M. | NAJAFINEJAD A. | NOURA N. | KAVIAN A. | Issue Writer Certificate

Keywords

CHEHEL-CHAI WATERSHEDQ2

RAINFALL SIMULATORQ2

RUNOFFQ2

SOIL LOSSQ1

Abstract

Study of soil erosion process and assessment of the control factors are the most important prerequisite for proper management of soil and water resources. This research was carried out to investigate effects of slope and soil properties on RUNOFF and SOIL LOSS using RAINFALL SIMULATOR in CHEHEL-CHAI WATERSHED, Golestan province.Also, considering the land unit map of the area, three land units were selected in the farm lands. In each land unit, three slope classes of 0-10%, 10-30% and highes than 30% were determined. Then four 10×10 m plots were selected in each slope class. RUNOFF and erosion were measured in each plot randomly using RAINFALL SIMULATOR with 2 mm/min intensity and 15 min duration in 4 replicates. Soil samples were taken in each plot as well. Results showed that there was a weak correlation between RUNOFF and slope and there was no significant relationship at 0.05 confidence level but there was a significant and positive correlation between SOIL LOSS and slope at 0.01 confidence level. Based on the results of the Pearson correlation matrix, the contents of the fine sand in 1% confidence level and lime and silt at 5% confidence level had positive correlation with RUNOFF and soil moisture content had positive correlation and soil surface resistance had negative correlation with SOIL LOSS. However, RUNOFF volume and SOIL LOSS increased 8% and 100%, respectively in slope class of more than 30% in comparison with 0-10% slope class. With increasing slope, soil resistance decreased and SOIL LOSS increased.

Cites

STUDYING THE RELATIONSHIP BETWEEN ENVIRONMENTAL FACTORS, RUNOFF CHARACTERISTICS AND INFILTRATION DEPTH USING RAINFALL SIMULATOR IN NORTHWESTERN RANGELANDS OF IRAN

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APA: Copy

ZARE KHORMIZI, M., NAJAFINEJAD, A., NOURA, N., & KAVIAN, A.. (2012). EFFECTS OF SLOPE AND SOIL PROPERTIES ON RUNOFF AND SOIL LOSS USING RAINFALL SIMULATOR, CHEHEL-CHAI WATERSHED, GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 19(2), 165-178. SID. https://sid.ir/paper/156603/en

Vancouver: Copy

ZARE KHORMIZI M., NAJAFINEJAD A., NOURA N., KAVIAN A.. EFFECTS OF SLOPE AND SOIL PROPERTIES ON RUNOFF AND SOIL LOSS USING RAINFALL SIMULATOR, CHEHEL-CHAI WATERSHED, GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2012;19(2):165-178. Available from: https://sid.ir/paper/156603/en

IEEE: Copy

M. ZARE KHORMIZI, A. NAJAFINEJAD, N. NOURA, and A. KAVIAN, “EFFECTS OF SLOPE AND SOIL PROPERTIES ON RUNOFF AND SOIL LOSS USING RAINFALL SIMULATOR, CHEHEL-CHAI WATERSHED, GOLESTAN PROVINCE,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 19, no. 2, pp. 165–178, 2012, [Online]. Available: https://sid.ir/paper/156603/en

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