낙동강 소유역 경지에서의 비점오염원 물질 발생 및 배출 특성 = Generation and Discharge Characteristics of Non-point Pollutants from Farmlands of Small Watershed for Nak-dong River

다국어 초록 (Multilingual Abstract)

This study was carried out to investigate the generation and discharge characteristics of non-point pollutants from farmlands in Nak-dong river basin. Annual unit generation load of nitrogen and phosphorus by fertilization in the test paddy field was almost similar to those calculated by the fertilization standards of district agricultural technology center, but it was extremely higher in case of the test dry field. By comparing annual total generation load of nutrients from fertilization to the data of fertilizer marketing, the accurate forecasting of generation load of pollutants was achieved by marketing data. The annual total discharge ratio of nutrients through infiltration and overflow from the farmland of the test paddy field were 9.5% and 1.1%, respectively, and those in the test dry field were 22.0% and 0.1%, respectively. The monthly discharge load of nutrients were shown the highest proportioned to the discharge load from lands, but it showed higher in phosphorus, which was caused by the intermittent discharge of phosphorus accumulated in drainage.

참고문헌 (Reference)

1 "팔당상수원 비점오염원 유출특성과 최적관리방안" 한국건설기술연구원 2000

2 "지리정보체계를 이용한 오염물질 유출해석 및 삭감계획에 관한 연구" 1998

3 "유역의 비점오염부하량 산정에 관한 연구" 6 (6): 147-157, 2000

4 "유역 및 하천모델의 결합적용을 통한 시기별 오염부하량 산정" 23 (23): 1561-1573, 2001

5 "소하천의 오염부하량이 수질에 미치는 영향에 관한 연구" 10 (10): 9-19, 2001

6 "비점오염원 유출특성과 저감을 위한 최적관리방안" 18 (18): 569-576, 2002

7 "경안천 유역의 강우사상별 비점오염원 유출특성 및 원단위 조사" 24 (24): 2019-2027,

8 "강우시 유출부하량을 이용한 팔당상수원 유역의 비점오염원 원단위와 발생량 추정" 17 (17): 321-326,

9 "Study on characteristics of pollutant runoff into lake Biwa Japan" 39 (39): 17-25, 1999

10 "Standard methods for the examination of water and wastewater" 1998

11 "Diffuse pollution 硏究の現狀と今後の展開" 20 (20): 1997