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生态学杂志 ›› 2004, Vol. ›› Issue (3): 44-48.

• 研究报告 • 上一篇    下一篇

长效氮肥施用对黑土水旱田CH4和N2O排放的影响

梁巍, 张颖, 岳进, 吴劼, 史奕, 黄国宏   

  1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳, 110016
  • 收稿日期:2003-04-28 修回日期:2004-02-10 出版日期:2004-06-10
  • 基金资助:
    国家重点基础研究发展规划资助项目(G1999011805)

Effect of slow-releasing nitrogen fertilizers on CH4 and N2O emission in maize and rice fields in black earth soil

LIANG Wei, ZHANG Ying, YUE Jin, WU Jie, SHI Yi, HUANG Guohong   

  1. Key Laboratory of Terrestrial Ecological Process , Institute of Applied Ecology , Chinese Academy of Sciences , Shenyang 110016, China
  • Received:2003-04-28 Revised:2004-02-10 Online:2004-06-10

摘要: 通过在黑土玉米地与水稻田施用长效氮肥后发现,长效碳酸氢铵(长碳)与长效尿素(长尿)能显著减少黑土玉米地N2O的排放。与施用普通尿素相比,其排放量分别减少了59.2%和73.3%。长碳和长尿还能促进黑土玉米地对CH4的吸收作用。黑土水稻田施用长尿后,N2O的排放减少了61%。而CH4的排放却略有增加.

Abstract: Field experiments were conducted to investigate the influence of slow-releasing ammonium bicarbonate and slow-releasing urea on N2O and CH4 emission in maize and rice fields.The results showed that the application of slow-releasing ammonium bicarbonate and slow-releasing urea could significantly reduce N2O emission in maize field by 59.2% and by 73.3% in rice field,respectively,compared with that of urea.These two N fertilizers could also enhance the uptake of CH4 in maize fields.N2O emission in rice fields was depressed by 61% in the treatment of slow-releasing urea,whereas CH4 emission had a slightly enhancement.

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