지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.8
- 수록면
- 527 - 533 (7page)
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초록· 키워드
오류제보하기
Decomposition of compost applied to soils is affected basically by its biological stability; but, many other chemical properties of the compost may also influence compost organic-C mineralization. This study was conducted to investigate the principal substrate quality factors of composts that determine C mineralization of compost with similar stability degree (SD). Three composts samples with similar SD but different chemical properties such as pH, C/N, K<sub>2</sub>SO<sub>4</sub>-extractable C, and molar ratio of NH<sub>4</sub> <sup>+</sup> to NO<sub>3</sub> <sup>-</sup> were mixed with an acid loamy soil and CO<sub>2</sub> emission was monitored during the laboratory incubation for 100 days. Temporal pattern of cumulative compost organic-C mineralization expressed as % of total organic C (C% TOC) followed double exponential first order kinetics model and the C% TOC ranged from 4.8 to 11.8% at the end of incubation. The pattern of C% TOC among the composts was not coincident with the SD pattern (40.1 to 58.6%) of the composts; e.g. compost with the lowest SD resulted in the least C% TOC and vice versa. This result indicates that SD of compost can not serve as a concrete predictor of compost mineralization as SD is subject not only to maturity of compost but also to characteristics of co-composting materials such as rice hull (low SD) and sawdust (high SD). Meanwhile, such pattern of C% TOC collaborated with pH, C/N, K<sub>2</sub>SO<sub>4</sub>-extractable C, and molar ratio of NH<sub>4</sub> <sup>+</sup> to NO<sub>3</sub> <sup>-</sup> of the composts that are regarded as chemical indices of the progress of composting. Therefore, for better prediction of compost mineralization in soils, it is necessary to consider both SD and other chemical indices (pH, C/N, and molar ratio of NH<sub>4</sub> <sup>+</sup> to NO<sub>3</sub> <sup>-</sup>).
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (27)
참고문헌 신청
Ajwa, H.A / 1994 / Decomposition of different organic materials in soils / Biol. Fertil. Soils 18:175~182
Aslam, D. / 2008 / Development of models for predicting carbon mineralization and associated phytotoxicity in compost amended soil / Bioresour. Technol 99:8735~8741
Bernal, M.P / 1992 / Carbon and nitrogen mineralization and ammonia volatilization from fresh, aerobically and anaerobically treated pig manure during incubation with soil / Biol. Fertil. Soils 13:135~141
Bernal, M.P / 1998 / Carbon mineralization from organic wastes at different composting stages during their incubation with soil / Agr. Ecosyst. Environ 69:175~189
Boyle, M / 1989 / Carbon and nitrogen mineralization kinetics in soil previously amended with sewage sludge / Soil Sci. Soc. Am. J 53:99~103
Aslam, D. / 2008 / Development of models for predicting carbon mineralization and associated phytotoxicity in compost amended soil / Bioresour. Technol 99:8735~8741
Bernal, M.P / 1992 / Carbon and nitrogen mineralization and ammonia volatilization from fresh, aerobically and anaerobically treated pig manure during incubation with soil / Biol. Fertil. Soils 13:135~141
Bernal, M.P / 1998 / Carbon mineralization from organic wastes at different composting stages during their incubation with soil / Agr. Ecosyst. Environ 69:175~189
Boyle, M / 1989 / Carbon and nitrogen mineralization kinetics in soil previously amended with sewage sludge / Soil Sci. Soc. Am. J 53:99~103
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UCI(KEPA) : I410-ECN-0101-2014-521-000824963