SCALING AND SPATIAL ANALYSIS OF INFILTRATION IN MARGHMALEK WATERSHED IN SHAHREKORD

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NADERIAN FAR M.; GHAHRAMAN B.; SAJJADI S.A.K.; FAALIAN A.; MOHAMMADI J.

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Journal: Iranian Journal of Soil Research Year:2014 | Volume:27 | Issue:4 Page(s): 605-618

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Title

SCALING AND SPATIAL ANALYSIS OF INFILTRATION IN MARGHMALEK WATERSHED IN SHAHREKORD

Author(s)

Keywords

INFILTRATION CURVESQ2

SCALING FACTORQ2

SPATIAL CORRELATIONQ2

TRANSFER FACTORQ2

Abstract

Infiltration is one of the most important parameters in irrigation and agriculture. Knowledge of soil infiltrability is needed for designing an efficient irrigation system. However, determination of soil infiltration variability, though it is a difficult task, is a prerequisite for any precision agriculture setup. In this study, spatial variability of infiltration at the regional scale (Shahrekord watershed) is investigated. A total of 111 INFILTRATION CURVES, obtained by double ring method with constant water head, were used to scale the infiltration. Four theoretical models, namely, Green- Ampt, Kostiakov, Kostiakov-Lewis, and Philip’s were fitted to the data. Philip model was the best, based on Pearson correlation and MAE statistics. TRANSFER FACTOR (A) and sorptivity (S) were spatially distributed in the watershed and were scaled by two different SCALING FACTORs of aA and as, respectively. Afterwards, all 111 INFILTRATION CURVES were scaled. Nugget effect and range of aA was 0.0001 and 0.793 km, which implies a high SPATIAL CORRELATION structure. Therefore, scaling by aA was superior to scaling by as. Pearson correlation of 0.944 and an error of 0.426 between the measured and de-scaled data were determined.

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References

ANALYSIS OF SPATIAL VARIABILITY OF SPECIFIC PHYSICAL AND HYDRAULIC PROPERTIES OF SOIL ON A CATCHMENT SCALE

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APA: Copy

NADERIAN FAR, M., GHAHRAMAN, B., SAJJADI, S.A.K., FAALIAN, A., & MOHAMMADI, J.. (2014). SCALING AND SPATIAL ANALYSIS OF INFILTRATION IN MARGHMALEK WATERSHED IN SHAHREKORD. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), 27(4), 605-618. SID. https://sid.ir/paper/159055/en

Vancouver: Copy

NADERIAN FAR M., GHAHRAMAN B., SAJJADI S.A.K., FAALIAN A., MOHAMMADI J.. SCALING AND SPATIAL ANALYSIS OF INFILTRATION IN MARGHMALEK WATERSHED IN SHAHREKORD. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES)[Internet]. 2014;27(4):605-618. Available from: https://sid.ir/paper/159055/en

IEEE: Copy

M. NADERIAN FAR, B. GHAHRAMAN, S.A.K. SAJJADI, A. FAALIAN, and J. MOHAMMADI, “SCALING AND SPATIAL ANALYSIS OF INFILTRATION IN MARGHMALEK WATERSHED IN SHAHREKORD,” IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), vol. 27, no. 4, pp. 605–618, 2014, [Online]. Available: https://sid.ir/paper/159055/en

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