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http://dx.doi.org/10.5322/JES.2010.19.9.1153

Probability Distribution of BOD EMC from Paddy Fields  

Jin, So-Hyun (Department of Rural & Bio-systems Engineering, Chonnam National University)
Jung, Jae-Woon (Rural Research Institute, Korea Rural Community & Agriculture Corporation)
Yoon, Kwang-Sik (Department of Rural & Bio-systems Engineering, Chonnam National University)
Choi, Woo-Jung (Department of Rural & Bio-systems Engineering, Chonnam National University)
Choi, Dong-Ho (Department of Rural & Bio-systems Engineering, Chonnam National University)
Kim, Sang-Don (Yeongsan River Environment Research Laboratory, National Institute of Environmental Research)
Kang, Jae-Hong (Yeongsan River Environment Research Laboratory, National Institute of Environmental Research)
Choi, Yu-Jin (Water Management Research Division, National Institute of Environment Research)
Publication Information
Journal of Environmental Science International / v.19, no.9, 2010 , pp. 1153-1159 More about this Journal
Abstract
Identification of probability distribution for water quality constituents from specific land use is important to achieve successful implementation of TMDL program. In this 3-year study, distribution of discharge and BOD(Biological Oxygen Demand) concentration from paddy rice fields were monitored. Four probability distributions, normal, log-normal, Gamma and Weibull were fitted and the goodness-of-fit was assessed using probability plots and Kolmogorov-Smirnov test. $EMC_s$ of BOD in runoff from paddy field ranged 0.37 to $7.99\;mgL^{-1}$, and all four probability distributions were acceptable. But the normal distribution would be preferred for BOD from paddy fields considering nature of straight forward application.
Keywords
BOD EMC; Probability distribution; Paddy fields;
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