[논문]기후변화가 습지 내 온실기체 발생과 미생물 군집구조에 미치는 영향

김선영; 강호정

doi:10.5532/kjafm.2007.9.3.161

[국내논문] 기후변화가 습지 내 온실기체 발생과 미생물 군집구조에 미치는 영향
Climate Effects on Greenhouse Gas Emissions and Microbial Communities in Wetlands 원문보기

한국농림기상학회지 = Korean Journal of Agricultural and Forest Meteorology, v.9 no.3, 2007년, pp.161 - 169

김선영 (이화여자대학교 환경공학과) , 강호정 (연세대학교 토목환경공학부)

초록
AI-Helper

대기 중 이산화탄소 농도 및 온도 증가와 강수 패턴 변화에 따른 가뭄 정도 및 횟수의 변화는 습지에서 발생하는 온실가스의 양에 영향을 미칠 수 있다. 습지에 존재하는 다양한 미생물 군집(탈질세균 및 메탄생성세균) 이 온실가스 생성에 있어 중요한 역할을 감당한다. 본 논문은 지금까지 전지구적 기후변화가 습지에서의 온실가스 발생과 관련 미생물 군집에 미치는 영향에 관한 다양한 연구를 정리하는 데 그 목적이 있다. 대기 중 이산화탄소 농도와 기온 증가는 일반적으로 온실가스 생성을 증가시켰다. 반면, 가뭄의 영향은 기체 종류와 가뭄 정도에 따라 다양한 결과가 보고되었다. 기후변화에 따른 미생물 군집의 변화는 습지시스템에서 보고된 연구의 부족으로 인해 특정한 결론을 도출할 수 없었다. 본 총설은 습지에서 미생물을 매개로 한 반응을 연구함에 있어 관련 미생물 군집구조의 특성을 파악하고, 다양한 환경인자에 대한 그들의 반응을 알아내는 것과 미생물 반응과 군집구조간의 상관 관계를 도출하는 것의 중요성을 제안한다. 이는 향후 전지구적 기후 변화가 습지의 생태학적 기능에 미칠 영향을 더 잘 이해하고 예측하는데 있어 매우 중요할 것이라 사료된다.

Abstract ▼ AI-Helper

Global climate changes including elevated $CO_2$, drought, and global warming may influence greenhouse gas emissions in wetlands. A variety of microbial communities including denitrifiers and methanogens play a key role in determining such processes. In this paper we summarize current knowledge on the effects of climate changes on $CO_2,\;CH_4$, and $N_2O$ production and microbial communities mediating those processes in wetlands. Elevated atmospheric $CO_2$ and warming generally increase gas emissions, but effects of droughts differ with gas type and drying level. The responses of microbial community to climate changes in terms of composition, diversity and abundance are still in question due to lack of studies in wetlands. Based on the present review, it is suggested that future studies on microbial processes should consider microbial community and relationships between microbial function and structure with diverse environmental factors including climate changes. Such knowledge would be crucial to better understand and predict accurately any shifts in ecological functions of wetlands.

주제어

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문제 정의

However, the effects of climate changes on soil microbial community and activity, and their relationship remain largely unknown in wetlands. The aim of this paper is to summarize current knowledge on the effects of elevated CO₂, drought, and warming on biogenic gas emissions (CO* CKj, and N₂O) and microbial communities in wetland ecosystems.
습지에 존재하는 다양한 미생물 군집탈질세균 및 메탄생성세균) 이 온실가스 생성에 있어 중요한 역할을 감당한다. 본 논문은 지금까지 전지구적 기후변화가 습지에서의 온실가스 발생과 관련 미생물 군집에 미치는 영향에 관한 다양한 연구를 정리하는데 그 목적이 있다. 대기 중 이산화탄소 농도와 기온 증가는 일반적으로 온실가스 생성을 증가시켰다.
기후변화에 따른 미생물 군집의 변화는 습지 시스템에서 보고된 연구의 부족으로 인해 특정한 결론을 도출할 수 없었다. 본 총설은 습지에서 미생물을 매개로 한 반응을 연구함에 있어 관련 미생물 군집구조의 특성을 파악하고, 다양한 환경인자에 대한 그들의 반응을 알아내는 것과 미생물 반응과 군집구조간의 상관 관계를 도출하는 것의 중요성을 제안한다. 이는 향후 전지구적 기후 변화가 습지의 생태학적 기능에 미칠 영향을 더 잘 이해하고 예측하는데 있어 매우 중요할 것이라 시료된다.

가설 설정

future directions of research. First, the combined effects of climate changes should be considered. Interactions of elevated CO₂, drought, and warming may be different from separate effect.

후속연구

반면, 가뭄의 영향은 기체 종류와 가뭄 정도에 따라 다양한 결과가 보고되었다. 기후변화에 따른 미생물 군집의 변화는 습지 시스템에서 보고된 연구의 부족으로 인해 특정한 결론을 도출할 수 없었다. 본 총설은 습지에서 미생물을 매개로 한 반응을 연구함에 있어 관련 미생물 군집구조의 특성을 파악하고, 다양한 환경인자에 대한 그들의 반응을 알아내는 것과 미생물 반응과 군집구조간의 상관 관계를 도출하는 것의 중요성을 제안한다.
본 총설은 습지에서 미생물을 매개로 한 반응을 연구함에 있어 관련 미생물 군집구조의 특성을 파악하고, 다양한 환경인자에 대한 그들의 반응을 알아내는 것과 미생물 반응과 군집구조간의 상관 관계를 도출하는 것의 중요성을 제안한다. 이는 향후 전지구적 기후 변화가 습지의 생태학적 기능에 미칠 영향을 더 잘 이해하고 예측하는데 있어 매우 중요할 것이라 시료된다.

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