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http://dx.doi.org/10.15681/KSWE.2014.30.1.008

Verification of Nonpoint Sources Runoff Estimation Model Equations for the Orchard Area  

Kwon, Heon-Gak (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Lee, Jae-Woon (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Yi, Youn-Jeong (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Cheon, Se-Uk (Nakdong River Water Environment Research Center, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.30, no.1, 2014 , pp. 8-15 More about this Journal
Abstract
In this study, regression equation was analyzed to estimate non-point source (NPS) pollutant loads in orchard area. Many factors affecting the runoff of NPS pollutant as precipitation, storm duration time, antecedent dry weather period, total runoff density, average storm intensity and average runoff intensity were used as independent variables, NPS pollutant was used as a dependent variable to estimate multiple regression equation. Based on the real measurement data from 2008 to 2012, we performed correlation analysis among the environmental variables related to the rainfall NPS pollutant runoff. Significance test was confirmed that T-P ($R^2=0.89$) and BOD ($R^2=0.79$) showed the highest similarity with the estimated regression equations according to the NPS pollutant followed by SS and T-N with good similarity ($R^2$ >0.5). In the case of regression equation to estimate the NPS pollutant loads, regression equations of multiplied independent variables by exponential function and the logarithmic function model represented optimum with the experimented value.
Keywords
load; nonpoint source; statistic tool; storm runoff;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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