INVESTIGATION AND ESTIMATION OF THE SEDIMENT DELIVERY AND TRANSMIT TO STREAMS AND RIVERS VIA FOREST ROADS OF DARABKOLA

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SAFARI A.; KAVIAN A.; PARSAKHOO A.

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Journal: Journal of Soil Management and Sustainable Production Year:2014 | Volume:4 | Issue:2 Page(s): 111-129

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Title

INVESTIGATION AND ESTIMATION OF THE SEDIMENT DELIVERY AND TRANSMIT TO STREAMS AND RIVERS VIA FOREST ROADS OF DARABKOLA

Author(s)

SAFARI A. | KAVIAN A. | PARSAKHOO A. | Issue Writer Certificate

Keywords

FOREST ROADSQ2

SEDIMENT DELIVERYQ2

DARABKOLAQ2

RAINFALL SIMULATORQ2

WARSEMQ2

Abstract

In this study, considering the importance of erosion and sedimentation in the FOREST ROADS, especially, SEDIMENT DELIVERY and transmit to streams and rivers via FOREST ROADS of the DARABKOLA forest watershed was studied using WARSEM.Therefore, field and direct measurements of the model input factors for 63 different segments of the path length of 12 kilometer of FOREST ROADS in the study area was done. In order to evaluate model resultants, erosion and sedimentation rate in the road surface and their different parts was measured using a rain simulator. Also, to evaluate results, paired t-test, Nash-Sutcliffe coefficient, BIAS and RMSE were used. Results showed that the rate of SEDIMENT DELIVERY from road surface to streams and rivers the conventional WARSEM and RAINFALL SIMULATOR was 328 and 174 ton per year and sediment production of study roads was 9.9 and 4.1 kilograms per square meter per year respectively. The results of the statistical methods of Nash-Sutcliffe coefficient, BIAS and RMSE for the model were as well as 0.3, 0.2 and 4.5 respectively and in 95% confidence level, there was not any significant differences between observation data and estimation data. Therefore, aforesaid model have the appropriate accuracy and efficiency to estimate the rate of erosion and sediment product of the DARABKOLA FOREST ROADS surface and forested watersheds with a similar Conditions. Also, after assessment and analysis of observed sediment rate in watershed outlet it was specified that according to WARSEM model and direct measurement 16% and 9% of produced and transmitted sediment has been originated from study FOREST ROADS surface.

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APA: Copy

SAFARI, A., KAVIAN, A., & PARSAKHOO, A.. (2014). INVESTIGATION AND ESTIMATION OF THE SEDIMENT DELIVERY AND TRANSMIT TO STREAMS AND RIVERS VIA FOREST ROADS OF DARABKOLA. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 4(2), 111-129. SID. https://sid.ir/paper/209735/en

Vancouver: Copy

SAFARI A., KAVIAN A., PARSAKHOO A.. INVESTIGATION AND ESTIMATION OF THE SEDIMENT DELIVERY AND TRANSMIT TO STREAMS AND RIVERS VIA FOREST ROADS OF DARABKOLA. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2014;4(2):111-129. Available from: https://sid.ir/paper/209735/en

IEEE: Copy

A. SAFARI, A. KAVIAN, and A. PARSAKHOO, “INVESTIGATION AND ESTIMATION OF THE SEDIMENT DELIVERY AND TRANSMIT TO STREAMS AND RIVERS VIA FOREST ROADS OF DARABKOLA,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 4, no. 2, pp. 111–129, 2014, [Online]. Available: https://sid.ir/paper/209735/en

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