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A study on Compare Characteristics of Nonpoint Source in Storm-water versus Steepness of Field Slope

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1008925.(doi:10.13031/2013.29760)
Authors:   Hyun Jun Shin, Joong Dae Choi, Chul Hee Won, Myung Suk Jung, Yong Hun Choi, Ji Yeon Seo, Tae Yoo Kim
Keywords:   Nonpoint source, Storm-water, Event Mean Concentration(EMC), Pollutants Loads

This study was focused on analysis Nonpoint source characteristics from Flat slope field and Steep slope field. We performed Storm-water monitoring for obtain flow data and concentration data. Totally, eleven times Event was occurred. We calculated EMC(Event Mean Concentration) and Pollutants Loads using data we obtained. As a result, steep sloping field has more discharge than flat field. SS value, one of the water quality contents, has largest variation and T-N has least variation. There is runoff differences even though events has same rainfall. We assume that not only amount of Rainfall, but also Rainfall Duration Times, Intensity, Number of Previous Non-precipitation days can affect to Run-off.

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