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Correlation Analysis on the Runoff Pollutants from a Small Plot Unit in an Agricultural Area
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  • Journal title : Environmental Engineering Research
  • Volume 15, Issue 4,  2010, pp.191-195
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2010.15.4.191
 Title & Authors
Correlation Analysis on the Runoff Pollutants from a Small Plot Unit in an Agricultural Area
Kang, Meea; Choi, Byoung-Woo; Lee, Jae-Kwan;
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This study was carried out to investigate the important factors relating to runoff and pollutant loads in a plot unit located in an agricultural area. Of the precipitation parameters, such as total precipitation, days since last rainfall (ADD, the rainfall was more than 10mm) and average rainfall intensity on runoff, the strongest effect was obtained due to total precipitation, but the rainfall intensity showed a slightly positive correlation. It was expected that both variables, i.e. total precipitation and rainfall intensity, would lead to the generation of greater runoff. In contrast, runoff was negatively correlated with ADD, which is understandable because more infiltration and less runoff would be expected after a long dry period. The TSS load varied greatly, between 75.6 and , per event. With the exception of TN, the TSS, BOD, COD and TP loads were affected by runoff. The correlations of these items were proportional to the runoff volume, with correlation coefficients (r) greater than 0.70, which are suitable for use as NPS model data. The TSS load showed very good relationships with organics (BOD & COD) and nutrients (TN & TP), with correlation coefficients greater than 0.79. Therefore, the removal of TSS is a promising factor for protecting water basins.
Non-point source;Pollutant load;Runoff;Precipitation;
 Cited by
안동호와 진양호의 상류하천발생 난분해성유기물질 제어에 대한 호소의 기능,최병우;강미아;손호용;

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