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.
이용수
초록· 키워드
오류제보하기
Rice cultivation in paddy field affects the global balance of methane (CH₄) as a key greenhouse gas. To evaluate a potential use of by-product gypsum fertilizer (BGF) in reducing CH₄ emission from paddy soil, CH₄ fluxes from a paddy soil applied with BGF different levels (0, 2, 4 and 8 Mg ha<SUP>-1</SUP>) were investigated by closed-chamber method during rice cultivation period. CH₄ flux significantly decreased (p<0.05) with increasing level of BGF application. 8 Mg ha<SUP>-1</SUP> of BGF addition in soil reduced CH₄ flux by 60.6% compared to control. Decreased soil redox potential (Eh) resulted in increasing CH₄ emission through a CO₂ reduction reaction. The concentrations of dissolved calcium (Ca) and sulfate ion (SO₄<SUP>2-</SUP>) in soil pore water were significantly increased as the application rate of BGF increased and showed negatively correlations with CH₄ flux. Decreased CH₄ flux with BGF application implied that SO₄<SUP>2-</SUP> ion led to decreases in electron availability for methanogen and precipitation reaction of Ca ion with inorganic carbon including carbonate and bicarbonate as a source of CH₄ formation under anoxic condition. BGF application also increased rice grain yield by 16% at 8 Mg ha<SUP>-1</SUP> of BGF addition. Therefore, our results suggest that BGF application can be a good soil management practice to reduce CH₄ emission from paddy soil and to increase rice yield.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (25)
참고문헌 신청
Ali, M.A., C.H. Lee, and P.J. Kim. 2007. Effect of phosphogypsum on reduction of methane emission from rice paddy soil. Korean J. Envir. Agri. 26(2):131-140.
Conrad, R. 1989. Control of methane production in terrestrial ecosystems. In: Exchange of trace gases between terrestrial ecosystems and the atmosphere, M.O. Andreae and D.S. Schimel(eds.), pp. 39-58.
Denier Van der Gon, H.A.C., and H.U. Neue. 1994. Impact of gypsum application on the methane emission from a wetland rice field. Global Biogeochem. Cycles. 8:127-134.
Garica, J.L., B.K.C. Patel, and B. Ollivier. 2000. Taxonomic, phylogenetic and ecological diversity of methanogenic archaea. Anaerobe. 6:205-226.
Holzapfel-Pschorn, A., and W. Seiler. 1986. Methane emission during a cultivation period from an Italian rice paddy. J. Geophy. Res. 91D:11803-11814.
Conrad, R. 1989. Control of methane production in terrestrial ecosystems. In: Exchange of trace gases between terrestrial ecosystems and the atmosphere, M.O. Andreae and D.S. Schimel(eds.), pp. 39-58.
Denier Van der Gon, H.A.C., and H.U. Neue. 1994. Impact of gypsum application on the methane emission from a wetland rice field. Global Biogeochem. Cycles. 8:127-134.
Garica, J.L., B.K.C. Patel, and B. Ollivier. 2000. Taxonomic, phylogenetic and ecological diversity of methanogenic archaea. Anaerobe. 6:205-226.
Holzapfel-Pschorn, A., and W. Seiler. 1986. Methane emission during a cultivation period from an Italian rice paddy. J. Geophy. Res. 91D:11803-11814.
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UCI(KEPA) : I410-ECN-0101-2016-521-002650698