DETERMINING MATHEMATICAL RELATIONSHIP BETWEEN SEDIMENT DELIVERY RATIO AND WATERSHED FACTORS

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NASRI MASOUD; NAJAFI ALI

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Journal: NATURAL ECOSYSTEMS OF IRAN Year:2015 | Volume:6 | Issue:1-2 Page(s): 1-11

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Information Journal Paper

Title

DETERMINING MATHEMATICAL RELATIONSHIP BETWEEN SEDIMENT DELIVERY RATIO AND WATERSHED FACTORS

Author(s)

NASRI MASOUD | NAJAFI ALI | Issue Writer Certificate

Keywords

SEDIMENT DELIVERY RATIOQ2

EROSIONQ2

LAND USEQ2

REGRESSION MODELINGQ2

ZAVARIANQ2

QOMROODQ2

GHOHROODQ2

Abstract

In watershed studies, EROSION and sedimentation is very important. Sediment yield is different I different watersheds. Sediment yield is influenced by different climatic, topographic and anthropogenic factors. This study aims to represent a mathematical relationship between SEDIMENT DELIVERY RATIO and watershed characteristics of GHOHROOD and ZAVARIAN Z4 watersheds with different climatic and rainfall regimes, LAND USE patterns and socio- economic features, where EROSION and sediment yield have been estimated using EPM and PSIAC methods. Next, SEDIMENT DELIVERY RATIO was calculated for each basin and its mathematical relationship to basin characteristics was developed. This relationship was stablished between 32 physiographic, LAND USE and hydr-climateic features as independent and SDR as dependent variable. Results indicated that among 9 independent features, area equivalent diameter, and sum of channel length have the highest role in SDR. In order to evaluate the accuracy and efficiency of the model to predict SDR, it was applied for Hossein Abad Neyzar basin. The correlation between SDR and empirical EPM and MPSIAC results and regression-based SDR estimation showed the efficiency and accuracy of the proposed method to use for the region and western-central hillslopes of Zagros and Alburz Mountains.

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APA: Copy

NASRI, MASOUD, & NAJAFI, ALI. (2015). DETERMINING MATHEMATICAL RELATIONSHIP BETWEEN SEDIMENT DELIVERY RATIO AND WATERSHED FACTORS. NATURAL ECOSYSTEMS OF IRAN, 6(1-2), 1-11. SID. https://sid.ir/paper/215265/en

Vancouver: Copy

NASRI MASOUD, NAJAFI ALI. DETERMINING MATHEMATICAL RELATIONSHIP BETWEEN SEDIMENT DELIVERY RATIO AND WATERSHED FACTORS. NATURAL ECOSYSTEMS OF IRAN[Internet]. 2015;6(1-2):1-11. Available from: https://sid.ir/paper/215265/en

IEEE: Copy

MASOUD NASRI, and ALI NAJAFI, “DETERMINING MATHEMATICAL RELATIONSHIP BETWEEN SEDIMENT DELIVERY RATIO AND WATERSHED FACTORS,” NATURAL ECOSYSTEMS OF IRAN, vol. 6, no. 1-2, pp. 1–11, 2015, [Online]. Available: https://sid.ir/paper/215265/en

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