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논문 상세정보

금강 하구 연안역의 해황과 관련한 영양염 전선

Nutrient Front Relating to the Hydrography in the Outflow Region of the Keum River

Abstract

Using results obtained from field surveys in the outflow region of the Keum River in winter (February 22), spring (May 9), summer (July 31) and autumn (October 17) in 2000, it was described the nutrient front relating to the hydrography. It showed that the horizontal gradients was sharp in the distributions not only in salinity but also in nutrients in the region of the mouth of estuary far away about 20 km from the dyke of the Keum River during the year. The two layer structure was a ubiquitous feature in the inner estuarine side of the region showing the maximum horizontal gradients in salinity and nutrients. Although the absolute values in salinity and nutrient concentrations were distinguished by season, the nutrient front seperates the saltier and nutrients poor water in the open sea from the brackish and nutrients rich water of the plume. These results suggest that the nutrient front coincides with the esturine front in the region of freshwater influence (ROFI) of the Keum River.

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참고문헌 (16)

  1. Choi, Y.K., S.G. Lee, G.S. Park and Y.S. Lee. 2000. Seasonal Varia-tion of DIN and DIP Related to the Outflowing Freshwater from Chonbuk Coastal Area during 1997-1998. Bull. Nat'l. Fish. Res. Dev. Inst. Korea, 58, 114-124 (in Korean) 
  2. Garvine, R.W. and J.D. Monk. 1974. Frontal Structure of a River Plume. Journal of Geophysical Research, 79, 2251-2259 
  3. Gomes, H.R., J.I. Goes and T. Saino. 2000. Influence of physical Pro-cesses and freshwater discharge on the seasonality of Phytoplank-ton regime in the Bay of Bengal. Continental Shelf Research, 20, 313-330 
  4. Kim, J.G., S.J. You and J.N. Kwon. 1998. Variation of Water Quality after Construction of Keum River Estuary Barrage. J. Korean Fish. Soc., 31, 685-694 (in Korean) 
  5. Kwon, H.K. and S.H. Lee. 1999. Physical Environment Changes in the Keum River Estuary by the Dyke Gate Operation I. Mean Sea Level and Tide. 'The sea' J. Korean Soc. Oceanogr., 4, 93-100 (in Korean) 
  6. Lee, S.H., H.K. Kwon, H.Y. Choi, J.S. Yang and J.Y. Choi. 1999. Physical Environment Changes in the Keum River Estuary by the Dyke Gate Operation II. Salinity Structure and Estuary Type. 'The sea' J. Korean Soc. Oceanogr., 4, 255-265 (in Korean) 
  7. Lee, S.H., H.Y. Choi and I.S. Oh. 1995. Structure and Variation of the Keum River Plume in Summer. J. Korean Soc. Oceanogr., 30, 125-137 (in Korean) 
  8. Lee, Y.H. and J.S. Yang. 1997. 5OO-days Continuous Observation of Nutrients, Chlorophyll Suspended Solid and Salinity in the Keum Estuary, Korea. 'The sea' J. Korean Soc. Oceanogr., 2, 1-7 (in Korean) 
  9. National Oceanographic Research Institute. 2000. Tide tables, Pub. No. 510, 262pp (in Korean) 
  10. Tian, R.C., F.X. Hu and J.M. Martin. 1993. Summer Nutrient Fronts in the Changjiang (Yantze River) Estuary. Estuarine, Coastal and Shelf Science, 37, 27-41 
  11. Yanagi, T. 1987. Classification of 'Siome', Streaks and Fronts. Journal of the Oceanographical Society of Japan, 45, 149-158 
  12. Yang, H.S. and S.S. Kim. 1990. Characteristics of Spatio-temporal Variation of the Water Quality in the Lower Keum River. Bull. Korean Fish. Soc., 23, 225-237 (in Korean) 
  13. Yang, J.S., J.Y. Jeong, J.Y. Heo, S.H. Lee and J.Y. Choi. 1999 Chemical Mass Balance of Materials in the Keum River Estuary 1. Seasonal Distribution of Nutrients. 'The sea' J. Korean Soc. Oceanogr., 4, 71-79 (in Korean) 
  14. Yoder, J.A., P.G. Verity, S.S. Bishop and F.E. Hoge. 1993. Phytoplank-ton Chl a, Primary production and nutrient distributions across a coastal frontal zone off Georgia, U.S.A. Continental Shelf Research, 13, 131-141 
  15. 농업기반공사. 2000. 금강하구둑 방류 자료, 농업기반공사 금강사업단(미 발표 자료) 
  16. 해양수산부. 1998. 해양환경 공정시험방법. 317pp 

이 논문을 인용한 문헌 (2)

  1. Hwang, Dong-Woon ; Lee, In-Seok ; Choi, Minkyu ; Kim, Sook-Yang ; Choi, Hee-Gu 2013. "Evaluation of Organic Matter and Trace Metal Contamination in Surface Sediments around the Geum River Estuary using Sediment Quality Guidelines" 한국수산과학회지 = Korean journal of fisheries and aquatic sciences, 46(6): 930~940 
  2. Lee, Sun-Kil ; Choi, Moon-Seong ; Seo, Yeong-Il ; Lee, Jae-Bong 2014. "Seasonal species composition and cluster analysis of catches by shrimp beam trawl in the Geum river estuary" 한국어업기술학회지 = Journal of the Korean Society of Fisheries Technology, 50(4): 455~466 

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