논문 상세보기
pp.422-431
The biogeochemical information of riverine organic matter gives a detailed and integrated recording of natural and anthropogenic activity within a watershed. To investigate the changes in quality and quantity of organic carbon transporting from mountain to ocean via river channels, we estimated the concentrations of dissolved (DOC) and particulate organic carbon (POC), and then traced the source origin of POC using stable carbon isotopes ratio before and after summer rainfalls in the Tamjin River and Ganjin Bay, Korea. Along the small watershed, a total of 13 sites including headwaters, dam reservoir, river and estuary were established for the study. We found some interesting findings in the aspect of distribution of DOC/POC concentration changing their origin sources dynamically flowing downstream. In particular, the river channel transport downstream mainly DOC to river mouth, although upper dam reservoir increased POC concentration by phytoplankton production in summer. Whereas, in the river mouth and estuary, POC was dominated not only by local supply from nearby reed saltmarsh, but also by marine phytoplankton production, respectively. The findings can contribute to increasing the understanding of riverine organic carbon transport in upper large dam and lower open estuary system.
재료 및 방 법
1. 연구대상지 개황
2. 시료채집 및 분석
결 과
1. 유량 및 수질 변화
2. DOC 및 POC 농도 변화
3. POM의 탄소안정동위원소비 변화
고 찰
1. 댐하류 하천과 기수역에서 유기탄소의 조성과 기원 변화
1) 상류지천과 댐저수지: 탐진천-탐진호의 연결성
2) 댐하류 하천: 다목적댐과 탐진강의 연결성
3) 열린하구 기수역: 탐진강과 강진만의 연결성
적 요
사 사
REFERENCES
