This study aimed to evaluate the carbon sequestration and storage capacity of a riverine back swamp by directly measuring vegetation and soil carbon storage as well as soil respiration-driven carbon fluxes in the Oksong-ri back swamp located in Kongju, Chungcheongnam-do, and to identify their relationships with soil physico-chemical properties. In the study area (28,063.7 m2), Salix triandra and Paspalum distichum communities were dominant. The estimated vegetation carbon storage was 68.7 Mg C ha-1 for the S. triandra community and 3.6 Mg C ha-1 for the P. distichum community, resulting in a total vegetation carbon storage of 72.3 Mg C ha-1 in the back swamp. Soil carbon storage showed no significant seasonal differences, with values of 20.0±2.4, 12.9±5.1, and 17.2±0.4 Mg C ha-1 in Spring, Summer, and Autumn, respectively, although it tended to be higher in spring and lower in Summer. Soil respiration varied significantly by season (p<0.05), with rates of 0.41±0.2 g CO2 m-2 hr-1 in Spring, 1.11±0.5 g CO2 m-2 hr-1 in Summer, and 0.75±0.5 g CO2 m-2 hr-1 in Autumn, exhibiting a weak positive correlation with soil temperature(15.8~33.6°C; R=0.346). Seasonal variations in soil pH (5.9~6.7), T-P (785.4~1,537.2 mg kg-1), gravimetric water content (GWC; 88.8~149.6%), T-N (1,320~2,810 mg kg-1), and C/N ratio (10.8~18.3) were not significant. Correlation analysis revealed that soil carbon storage was positively correlated with T-N (R=0.876, p<0.005) and pH (R=0.639, p<0.05), whereas carbon flux showed a weak positive correlation with GWC (R=0.342, p<0.05) and negative correlations with T-N, T-P, and pH, suggesting that excessive nutrient accumulation may inhibit microbial activity and respiration. This study provides foundational quantitative data on carbon storage and emissions in Korean riverine back marshes and offers scientific evidence to support the development of carbonneutral strategies based on riverine wetland ecosystems.

Abstract
서 론
연구 방 법
    1. 연구지역 정보
    2. 식생 탄소 저장량 산정을 위한 샘플 채취
    3. 토양 샘플링 및 물리화학적 특성 분석
    4. 토양 호흡량 측정
    5. 통계 분석
결과 및 고 찰
    1. 식생과 토양의 탄소 저장량
    2. 토양 호흡량 평가
    3. 토양의 물리화학적 특성
    4. 습지의 탄소 저장능력과 토양의 물리화학적 특성 간의관계
적 요
REFERENCES

• 정헌모(국립생태원 탄소흡수연구팀) | Heon Mo Jeong (Carbon Sequestration Research Team, National Institute of Ecology, Seocheon 33657, Republic of Korea)
• 장인영(국립생태원 탄소흡수연구팀) | Inyoung Jang (Carbon Sequestration Research Team, National Institute of Ecology, Seocheon 33657, Republic of Korea) Corresponding author
• 이응필(국립생태원 생태변화연구팀) | EungPill Lee (Ecosystem Change Research Team, National Institute of Ecology, Seocheon 33657, Republic of Korea)
• 한상학(국립생태원 생태지표연구팀) | Sanghak Han (Ecological Indicator Research Team, National Institute of Ecology, Seocheon 33657, Republic of Korea)