THE ESTIMATION OF EROSION AND SEDIMENT PRODUCTION BY MEASURING STORM RAINS

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JABARI IRAJ; AREFI M.R.

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Journal: GEOGRAPHICAL RESEARCH Year:2007 | Volume:22 | Issue:1 (84) Page(s): 53-74

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Title

THE ESTIMATION OF EROSION AND SEDIMENT PRODUCTION BY MEASURING STORM RAINS

Author(s)

JABARI IRAJ | AREFI M.R. | Issue Writer Certificate

Keywords

ESTIMATING EROSIONQ2

SEDIMENT DELIVERYQ2

KABUTAR LANEH DRAINAGE BASINQ3

SEDIMENT PRODUCTION COEFFICIENTQ3

EROSION MODELINGQ3

Abstract

The erosion and sediment production are important dilemmas in Iran and for this reason it is necessary to predict the erosion rates for unstable regions. The diversity of influential factors on erosion has subdued the presentation and prediction of special methods; hence, authors had to use empirical methods basically used in other environmental conditions. It is clear that some research centers have tried to manipulate such methods and to present correction constants in recent years. Nevertheless, the empirical methods have been often used without manipulation and entering the correction constants perhaps due to potential deficiencies.Therefore, there is a need to apply erosion estimation methods whose data are accessible from environment itself with respect to potentials and temporal accessibility. For this reason, we have attempted in this study to develop a model in Kabootar Laneh basin of Kangavar city in order to be able to estimate the amount of sediment production with higher reliabilities. Having this aim, we measured the runoff, and the resultant sediment of the rainfall from 17 to 19 April of 2002 in this basin. We carried out this measurement in 10 plots with given gradient and vegetation covers and developed models based on the erosion production from these plots and their runoff, the slope and vegetation cover characteristics. The gradient, vegetation cover, and runoff mapping, based on effective precipitation during 16 years records in Kangavar station, determined the erosion rates and annual sediment production constant. The homogeneous aquifer zone based on overlaid maps represented the same SEDIMENT DELIVERY with respect to the selected model. The sum of weighted mean of sediment production for each unit was obtained using the calculated erosion model. The results showed that the exponential model with the highest meaningful model was the best responsive model to erosion prediction for the basin under study. The amount of sediment production, in this basin was equal to 4856 kg and the depository amount 36%, while the amount of sediment production using the PSIAC method was as much as twice this figure.

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APA: Copy

JABARI, IRAJ, & AREFI, M.R.. (2007). THE ESTIMATION OF EROSION AND SEDIMENT PRODUCTION BY MEASURING STORM RAINS. GEOGRAPHICAL RESEARCH, 22(1 (84)), 53-74. SID. https://sid.ir/paper/29738/en

Vancouver: Copy

JABARI IRAJ, AREFI M.R.. THE ESTIMATION OF EROSION AND SEDIMENT PRODUCTION BY MEASURING STORM RAINS. GEOGRAPHICAL RESEARCH[Internet]. 2007;22(1 (84)):53-74. Available from: https://sid.ir/paper/29738/en

IEEE: Copy

IRAJ JABARI, and M.R. AREFI, “THE ESTIMATION OF EROSION AND SEDIMENT PRODUCTION BY MEASURING STORM RAINS,” GEOGRAPHICAL RESEARCH, vol. 22, no. 1 (84), pp. 53–74, 2007, [Online]. Available: https://sid.ir/paper/29738/en

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