Simulations of Runoff using Rice Straw Mats and Soil Amendments

• DOI: 10.5389/ksae.2012.54.2.095
• Publication Date: 2012-05-10T07:56:12Z
• Authors: Chul-Hee Won; Min-Hwan Shin; Yong-Hun Choi; Jae-Young Shin; Woon-Ji Park; Joong-Dae Choi
• Keywords: Turbidity; Erosion Control

The objective of this research was to experimentally test the effect rice straw mats on reduction runoff, sediment discharge and turbidity under a laboratory scale. We used small runoff plots 1 m <TEX>${\times}$</TEX> 0.65 (<TEX>$L{\times}W{\times}H$</TEX>) in size filled with loamy sand. Experimental treatments were bare (control), mat cover + PAM Gypsum (SPG), Chaff (SCPG) Sawdust (SSPG); slope 10 % or 20 %; rainfall intensity 30 mm/hr. Runoff volume rate covered significantly lower than those control plot. Average plots, %, decreased 85.6 72 respectively. Sediment ratio more 99 regardless slope. differences among different materials not significant. It also shown that even if by surface low, could be very significant contribute improve water quality streams sloping agricultural regions. concluded use soil amendments (PAM Gypsum) fields reduce erosion muddy help aquatic ecosystem receiving waters. But mixing minimal.