Modeling of the Effects by Paddy Straw on the Cover of Land Surface As A Slope Erosin Controller

Abdul, Rivai Suleman (2015) Modeling of the Effects by Paddy Straw on the Cover of Land Surface As A Slope Erosin Controller. ARPN Journal of Engineering and Applied Sciences, 10 (22). pp. 10405-10412. ISSN 1819-6608

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Official URL: http://www.arpnjournals.org/jeas/research_papers/r...

Abstract

This research aims to the model of the effect by paddy straw fibers on the cover of land surface as a slope erosion controller. This research was tested in the laboratory by using USLE (Universal Soil Loss Equation) model as a comparison to determine the amount of the reduction of the erosion rate that occurs, both on the land without the covering or covering. Research conducted with 3 variations in the intensity of rain that is 50 mm/hour, 100 mm/hour and 120 mm/hour and use artificial rainfall with a Rainfall Simulator. The result of this research showed that the rate of erosion on soil that was given in the form of straw fibers covering layer of the paddy with the cover percentage is 30% dry weight or 38,7gr/m2 had decreased when compared with the rate of erosion occurring on the ground without cover. The magnitude of the rate of erosion that occurred in the cover percentage is 30% dry weight of straw mulch or 38,7 gr/m2averages of 17,068% against the rate of erosion on the ground without cover. In other words, that the rate of erosion on soil without cover will be reduced (decreased) by an average of 82,932% if the land is given a cover layer of paddy straw fibres with a percentage of 30% or cover a dry weight of 38,7 gr/m2. Similarly, the rate of erosion on land given the paddy straw fibres cover layer with the cover percentage respectively 60% and 90% dry weight or each 145,1 gr/m2 and 354,8 gr/m2 also had decreased when compared with the rate of erosion occurring on the ground without cover. The magnitude of the rate of erosion that occurred on land given the cover 60% dry or heavy 145,1 gr/m2 on average by 7,216% and 90% cover on a layer or severe drying 354,8 gr/m2 on average by 4,392%. In other hands, the rate of erosion on soil without cover will be reduced (decreased) by an average of 92,784% on the cover of 60% and an average of 95,608% on the cover of 90%. On the rain intensity of 50 mm/hour, the erosion rate prediction equation that obtained is: E = 3,0273488 e-0,1191688(MJ/S), On the rain intensity of 100 mm/hour, the erosion rate prediction equation that obtained is: E = 6,4748371 e-0,0824717(MJ/S), and similarly, on the rain intensity of 120 mm/hour, the erosion rate prediction equation that obtained is: E = 18,4374973 e-0,0984739(MJ/S).

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Department of Civil Engineering > Teknik Konstruksi Sipil
Depositing User: Abdul Rivai Suleman
Date Deposited: 10 Jan 2017 08:52
Last Modified: 17 Feb 2020 07:17
URI: http://repository.poliupg.ac.id/id/eprint/171

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