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NTIS 바로가기Journal of environmental science international = 한국환경과학회지, v.26 no.5, 2017년, pp.661 - 674
This study used questionnaires to investigate how pre-service elementary teachers understand ocean acidification. As a result of gender, female teachers were more aware of ocean acidification than male teachers, but male teachers had a higher average rate of correct answers, with a lower standard de...
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해양 산성화에 대한 전체적인 이해를 알아보았다
. 그 결과는 Table 2와 같다.핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
해양 산성화란? | kr). 또한 해양은 대기 중의 CO2를 흡수하여 지구 온난화가 급속히 진행되는 것을 완화하는 역할을 해왔으나 대기 중 계속적인 CO2 농도 증가에 의해 해양으로 유입되는 CO2가 증가되어 해수의 pH가 감소하는 해양 산성화(Ocean Acidification)가 이미 진행되고 있다(Kim, 2015; Land et al., 2015)(Fig. | |
해양 산성화의 직접적인 원인물질은 무엇인가? | 해양 산성화는 대기 중의 이산화탄소(CO2)가 해양으로 유입되면 탄산(H2CO3)을 형성하고, 이것은 다시 탄산염(CO32-)이나 중탄산염(HCO3-)을 만들게 된다(Lee, 2011a; Kim, 2015). CO2는 해양 산성화의 직접적인 원인 물질로 가장 많이 배출되어 해양 산성화의 주범으로 잘 알려진 기체로 공장굴뚝에서 배출되어 바다에 용해되어 바다 생태계에 크나큰 영향을 끼친다. CO2가 바닷물에 용해되어 해양 산성화 과정을 나타내었다(Wright and Colling, 1995; Weston, 2000; Zeebe and Wolf-Gladrow, 2001; Elderfield, 2002; Takahashi, 2004; The Royal Society, 2005; Riding, 2006; Bozlee et al. | |
해양 산성화가 석회화 생물에 영향을 미치는 작용 기전은 무엇인가? | 따라서 해수의 pH 감소로 중탄산염(HCO3-)을 형성하는 쪽으로 평형이 이동하게 되면 물속의 탄산염 농도가 떨어지게 되며 탄산칼슘(CaCO3)의 용해율이 증가되고 패각 형성에 필요한 충분한 탄산염을 공급받지 못하게 된다(Lee, 2011a). 따라서 성게, 굴 등 탄산칼슘을 이용하는 석회화 생물들의 산 염기 조절 특성, 대사, 성장, 재생산 등 생태생리학적 기능에 영향이 나타나는 것으로 연구 보고되고 있다(Lee et al. |
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