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        영농시기에 따른 영산강 지류의 수질 변화에 관한 연구

        백종훈 ( Jong-hun Baek ),심홍빈 ( Hongbin Shim ),정강영 ( Kang-young Jung ),이영재 ( Youngjea Lee ),나은혜 ( Eunhye Na ),하돈우 ( Don-woo Ha ) 한국환경기술학회 2021 한국환경기술학회지 Vol.22 No.2

        The water quality and flow rate measured every 8 days were evaluated for Yeongsan River basin tributary, the water quality forecasting sites of the Ministry of Environment. In this study, the characteristics of water quality and factors of change according to farming activities of Jiseokcheon4, Manbongcheon, and Hampyeongcheon3, the major tributaries of the Yeongsan River basin, were investigated through load continuity curve and statistical analysis. As a result, it was analyzed that BOD was less affected by the flow rate in the correlation and factor analysis, indicating that there was little inflow of organic matter into the river due to rainfall. It was analyzed that T-P flows into the river during rainfall that affects the flow rate during the farming season, but affects the small-scale rainfall during the non-farming season, which does not significantly affect the flow rate of the river. It is believed that T-P is caused by rainfall from rivers and fresh water from rice paddies caused by farming activities. Accordingly, for water quality management, it is necessary to identify the pollutant sources generated by farming activities and manage the outflow of pollutants by farming period.

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