한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)
- 제30권1호
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- Pages.35-40
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- 1997
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
벼 재배양식(栽培樣式)이 메탄가스 배출에 미치는 영향(影響)
Effect of Rice Cultural Patterns on Methane Emission from a Korean Paddy Soil
- Lee, Kyeong-Bo (National Honam Agricultural Experiment Station, RDA) ;
- Lee, Deog-Bae (National Honam Agricultural Experiment Station, RDA) ;
- Kim, Jong-Gu (National Honam Agricultural Experiment Station, RDA) ;
- Kim, Yong-Woong (Chonnam National University, College of Agriculture)
- 발행 : 1997.03.30
초록
담수된 논 토양에서는 산소공급의 차단으로 환원상태가 조장되어 메탄가스가 생성되는데, 생성된 메탄은 확산이나 벼 식물체를 통하여 대기로 배출되어 지구온난화 가스로 작용된다. 본 연구는 메탄가스 저감방법을 구명하고자 벼 재배양식별 메탄가스 배출특성을 조사한 결과를 요약하면 다음과 같다. 1. 벼 재배양식에 따른 메탄 배출량은 이앙재배, 담수직파, 건답직파순으로 많았으며 볏짚을 시용한 건답직파의 평균메탄 배출량(
This study was conducted to investigate methane emission under different rice cultural practices in paddy soil (Jeonbug Series, occurring on fluvio-alluvial plain). The rates of application of fresh rice straw were 5,000kg/ha in combination with 110 and 160kg N/ha as chemical fertilizer. The methane emission among the rice cultural practices was in the order of transplanting cultivation, direct seeding on flooded surface and direct seeding on dry paddy field. The average methane flux was