EFFECT OF PLOT SIZE ON MEASURED RUNOFF AND SEDIMENT YIELD FROM NATURAL RAIN-STORMS

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ASADZADEH FARROKH; GORJI MANOOCHEHR; VAEZI ALIREZA; SOKOUTI REZA; MIRZAEE SALMAN

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2013 | Volume:2 | Issue:4 Page(s): 69-81

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Title

EFFECT OF PLOT SIZE ON MEASURED RUNOFF AND SEDIMENT YIELD FROM NATURAL RAIN-STORMS

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Keywords

NATURAL RAINFALL STORMQ2

RUNOFFQ2

SEDIMENTQ2

Abstract

Erosion Plots are widely used to evaluate the main factors affecting soil erosion. Therefore, understanding the effects of different variables such as spatial scale on their performance is needed. This study was carried out to assess the effect of plot scale on measured RUNOFF and SEDIMENT yield at event scale. To represent different spatial scales, plots with seven sizes differing in length (2, 5, 10, 15, 22.1, 25, and 30 m) and width (1, 1, 1.2, 1.6, 1.8, 2, and 2.4 m, respectively) were constructed in Poldasht region, west Azarbayjan province, northwest Iran. For each size of plots, specific RUNOFF and SEDIMENT yield were separately measured for 11 RUNOFF producing natural storms during the study period from September, 2010 to September, 2011. The results indicated that the unit area RUNOFF and SEDIMENT yield decreases with power form relation as plot area or length increases. Statistical analysis of RUNOFF and SEDIMENT yield data showed that, in most cases, there is a significant difference between the results of 10 m or shorter in length, plots and longer plots (p<0.05). However, there was no significant difference between the results of 15 m and longer plots. Based on these results, plots with 10 to 15 m in length were able to produce comparable results with large plots.

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APA: Copy

ASADZADEH, FARROKH, GORJI, MANOOCHEHR, VAEZI, ALIREZA, SOKOUTI, REZA, & MIRZAEE, SALMAN. (2013). EFFECT OF PLOT SIZE ON MEASURED RUNOFF AND SEDIMENT YIELD FROM NATURAL RAIN-STORMS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 2(4), 69-81. SID. https://sid.ir/paper/232272/en

Vancouver: Copy

ASADZADEH FARROKH, GORJI MANOOCHEHR, VAEZI ALIREZA, SOKOUTI REZA, MIRZAEE SALMAN. EFFECT OF PLOT SIZE ON MEASURED RUNOFF AND SEDIMENT YIELD FROM NATURAL RAIN-STORMS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2013;2(4):69-81. Available from: https://sid.ir/paper/232272/en

IEEE: Copy

FARROKH ASADZADEH, MANOOCHEHR GORJI, ALIREZA VAEZI, REZA SOKOUTI, and SALMAN MIRZAEE, “EFFECT OF PLOT SIZE ON MEASURED RUNOFF AND SEDIMENT YIELD FROM NATURAL RAIN-STORMS,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 2, no. 4, pp. 69–81, 2013, [Online]. Available: https://sid.ir/paper/232272/en

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