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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
오류제보하기
There are fifteen non-point pollution management areas in Korea and three of them (Doam lake, Daegi district and Golji-cheon) are located in theupstream of the Namhan river watershed. Many efforts to reduce non-point sources (NPS) pollution have been conducted, however, water qualitypollution in the watershed is still serious. To solve these problems, it is a priority to grasp water quality using statistical techniques. In this study, atrend analysis was conducted to evaluate the effect of NPS management in the watershed. The long-term trends from 1996 to 2018 of water qualityproperties were analyzed using data collected from the water environment information system. Seventeen monitoring stations were selected along themain stream in Namhan river basin. Monthly water quality properties (BOD, COD, TN, TP, TN/TP ratio, Conductivity, SS and Chlorophyll-a) werecollected and analyzed by Mann-Kendall test and LOWESS. The results showed that the Conductivity tended to increase in all regions and was thehighest level in Jijangcheon. Organic pollution such as BOD and COD tended to increase in the Jungseon area. SS did not show a large tendency,but it showed high concentration in the Doam watershed. In all regions, 40% of water quality properties showed a tendency to ‘UP’, 15% of waterquality properties tended to ‘DOWN’, and 46% indicated no tendency. In order to determine the cause of this, additional research and measures forimprovement are necessary. This study will be used for the establishment of water quality policy in the future.
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참고문헌 (24)
참고문헌 신청
Hirsch, R. M. / 1982 / Techniques of trend analysis for monthly water quality data / Water Resources Research 18:107~121
Hirsch, R. M. / 1984 / A nonparametric trend test for seasonal data with serial dependence / Water Resources Research 20(6):727~732
Hirsch, R. M. / 1991 / Selection of methods for the detection and estimation of trends in water quality / Water Resources Research 27(5):803~813
Kendall, M. G. / 1975 / Rank Correlation Methods / Griffin
Kim, H. N. / 2018 / An economic analysis of converting highland agricultural areas into environment-friendly land use for water quality improvement
Hirsch, R. M. / 1984 / A nonparametric trend test for seasonal data with serial dependence / Water Resources Research 20(6):727~732
Hirsch, R. M. / 1991 / Selection of methods for the detection and estimation of trends in water quality / Water Resources Research 27(5):803~813
Kendall, M. G. / 1975 / Rank Correlation Methods / Griffin
Kim, H. N. / 2018 / An economic analysis of converting highland agricultural areas into environment-friendly land use for water quality improvement
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