稻田甲烷排放通量与农业管理措施的关系

Abstract

Abstract: The methane emission fluxes from rice after wheat and single rice field have been measured in Beijing area from 1990 to 1992. CH₄ emission flux for single rice was about 8. 5-10. 0 mg/m²·h and for rice after wheat was 17. 5 mg/m²·h. The amount of organic base fertilizer added was the major factor affecting methane emissions (dry-seeded rice field and rice field without organic matter input have lower emission than other treatments). The use of scientific irrigation (intermittent irrigation) with suitable amount of organic base fertilizer could either increase rice yield or reduce methane emission, but it was also observed the increasing emission of another greenhouse gas N₂O under the stage of dry and moisture water management.

Key words: greenhouse gases, CH₄ emission, N₂O emisssion, emission flux

SHAO Ke-Sheng. Preliminary Study on the Relationship of Agricultural Management Measures and Methane Emission Flux from Rice Paddy near Beijing Area[J]. Journal of Ecology and Rural Environment, 1993, 9(增刊): 19-22,58.

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Preliminary Study on the Relationship of Agricultural Management Measures and Methane Emission Flux from Rice Paddy near Beijing Area

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