| 控制稻田甲烷排放的农业管理措施研究 |
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| 引用本文： | 陈宗良,邵可声,李德波,王步军.控制稻田甲烷排放的农业管理措施研究[J].环境科学研究,1994,7(1):5-10. |
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| 作者姓名： | 陈宗良 邵可声 李德波 王步军 |
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| 作者单位： | 1.中国环境科学研究院 北京 100012 |
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| 摘 要： | １９９０～１９９２年连续３ａ，对北京和南京具有代表性稻田进行了甲烷排放通量测定。结果表明，甲烷排放日变化规律受土壤理化性质、农业管理措施、气候变化等影响而变化，在下午１５:００～１８:００出现高峰值￣(１－６)，甲烷排放季节变化规律在分蘖期和孕穗期两次出现高峰。采取不同的农业管理措施对稻田甲烷排放的影响显著:间歇灌溉对烤田后的稻田能降低甲烷排放又可增加水稻产量；南方地区垅作栽培有利于减少冬水田甲烷排放，北方地区旱种可减少甲烷排放；有机肥能促进甲烷排放，稻田分蘖期和孕穗期施用硫酸铵和尿素能抑制甲烷排放。
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| 关 键 词： | 温室气体 甲烷 排放通量 稻田 |
| 收稿时间： | 1993/10/8 0:00:00 |
AgricuItural Measures Taken in controlling the Methane Emission Flux from Rice Paddy |
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| CHEN Zongliang,SHAO Kesheng,LI Debo,WANG Bujun.AgricuItural Measures Taken in controlling the Methane Emission Flux from Rice Paddy[J].Research of Environmental Sciences,1994,7(1):5-10. |
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| Authors: | CHEN Zongliang SHAO Kesheng LI Debo WANG Bujun |
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| Affiliation: | 1.Research Institute of Atmospheric EnUiro1inient Chinese Research Acodemy of Environmental Scienes,Beijing 1000122.Center of Environmental Scicnces,Peking Universlty,Beijing 100871 |
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| Abstract: | From 1990 to 1992,the methane emission fluxes from representative paddies in Bei-jing and Nanjing areas had been measured.The observed results indicated that the daily varia-tions of the methane emission were influenced by the physical and chemical properties of soil,different cultivation practice and climate. The daily emission reached its peak value from 15:00 to 18:00 p.m￣1-6].In the tillering stage and reproductive stage appeared the two highest peaks of the seasonal variation. Different agricultural measures caused remarkable differences in methane emission fluxes from rice paddies. Intermittent irrigation can both decrease methane emission and increase rice yield.Ridge cultivation in the southern areas is favorable to reduce methane emission from winter flcoded rice paddy. Dry seeded cultivation in the northern areas can also reduce methane emission. Applying organic based fertilizer can promote methane emission. During tillering stage and reproductive stage,the applicatiOn of ammonium sulfate and urea has obvious effect on reducing methane emission. |
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| Keywords: | Greenhouse gas Methane Emission flux Rice paddy |
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