So far, most studies associated with soil carbon sequestration have been focused on long term aspect. However, information regarding soil carbon sequestration in short term aspect is limited.
This study was conducted to determine changes of soil organic carbon content and stability of carbon in response to compost application rate and tillage management during rice growing season(150 days) in short term aspect. Under pot experiment condition, compost was mixed with an arable soil at rates corresponding to 0, 6, 12, and 24 Mg/ha. To determine effect of tillage on soil carbon sequestration, till and no-till treatments were set up in soils amended with application rate of 12 Mg/ha. Compost application and tillage management did not significantly affect soil organic carbon(SOC) content in soil at harvest time. Bulk density of soil was not changed significantly with compost application and tillage management. These might result from short duration of experiment. While hot water extractable organic carbon(HWEOC) content decreased with compost application, humic substances(HS) increased. Below ground biomass of rice increased with application of compost and till operation.
From the above results, continuos application of compost and reduce tillage might improve increase in soil organic carbon content and stability of carbon in long term aspect.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 공시토양 및 퇴비 특성
  2.2. 포트시험
  2.3. 이화학적 특성 조사
  2.4. 토양유기탄소 함량 및 안정화도 조사
  2.5. 바이오매스 조사
 3. 결과 및 고찰
  3.1. 퇴비시용 효과
  3.2. 경운 효과
  3.3. 바이오매스 특성
 4. 결 론
 참 고 문 헌

• 홍창오(부산대학교 생명환경화학과) | Chang-Oh Hong (Department of Life Science and Environmental Biochemistry, Pusan National University)
• 강점순(부산대학교 원예생명과학과) | Jum-Soon Kang (Department of Horticultural Bioscience, Pusan National University)
• 신현무(경성대학교 환경공학과) | Hyun-Moo Shin (Department of Environmental Engineer, Kyungsung University)
• 조재환(부산대학교 농업경제학과) | Jae-Hwan Cho (Department of Agricultural Economics, Pusan National University)
• 서정민(부산대학교 바이오환경에너지학과) | Jeong-Min Suh (Department of Bio-Environmental Energy, Pusan National University) Corresponding author