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NTIS 바로가기바다 : 한국해양학회지 = The sea : the journal of the Korean society of oceanography, v.14 no.2, 2009년, pp.80 - 89
정진현 (부산대학교 지구환경시스템학부) , 김동선 (한국해양연구원 기후연안재해연구부) , 이태희 (한국해양연구원 남해특성연구부) , 안순모 (부산대학교 지구환경시스템학부)
The rates of sediment oxygen demand(SOD) and denitrification(DNF) were measured using Keyword
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핵심어 | 질문 | 논문에서 추출한 답변 |
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유광대(euphotic zone)에서 일차생산에 의해 만들어진 유기물은 이후 어떤 과정을 거치는가? | 유광대(euphotic zone)에서 일차생산에 의해 만들어진 유기물은 수층에서 미생물에 의해 분해되거나 “내보내기 생산(export production)”에 의해 퇴적층에 도달하게 된다. 퇴적층으로 유입된 유기물은 재부유 되거나 퇴적층에 묻히기도 하지만 대부분은 초기 변성(early diagenesis) 과정에서 미생물에 의해 분해된다. | |
퇴적층으로 유입된 유기물은 어떻게 되는가? | 유광대(euphotic zone)에서 일차생산에 의해 만들어진 유기물은 수층에서 미생물에 의해 분해되거나 “내보내기 생산(export production)”에 의해 퇴적층에 도달하게 된다. 퇴적층으로 유입된 유기물은 재부유 되거나 퇴적층에 묻히기도 하지만 대부분은 초기 변성(early diagenesis) 과정에서 미생물에 의해 분해된다. 이러한 분해 과정에서 생성되는 무기 형태의 질소 화합물은 일차 생산을 조절하는 주요 인자로 작용하며, 생물에게 있어 성장과 번식에 중요한 역할을 한다(Arrigo, 2004). | |
유기물이 분해 되며 생성되는 물질은 어떤 역할을 하는가? | 퇴적층으로 유입된 유기물은 재부유 되거나 퇴적층에 묻히기도 하지만 대부분은 초기 변성(early diagenesis) 과정에서 미생물에 의해 분해된다. 이러한 분해 과정에서 생성되는 무기 형태의 질소 화합물은 일차 생산을 조절하는 주요 인자로 작용하며, 생물에게 있어 성장과 번식에 중요한 역할을 한다(Arrigo, 2004). 식물플랑크톤에게 필요한 질소영양염의공급은유광층내영양염재순환(regenerated nitrogen)이나 영양염이 풍부한 저층수의 유입(new nitrogen)에 의해 이루어지며, 모두 유광층의 일차생산에 중요하다(Yool et al. |
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