欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2005, Vol. ›› Issue (9): 999-1003.

• 研究报告 • 上一篇    下一篇

下辽河平原典型农田融化期氧化亚氮和甲烷排放通量研究

郑靖1,3, 王重阳4, 王迎红2, 鲁彩艳1,3, 史奕1,3, 陈欣1,3   

  1. 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;
    2. 中国科学院大气物理所, 北京, 100029;
    3. 中国科学院研究生院, 北京, 100039;
    4. 沈阳农业大学, 沈阳, 110161
  • 收稿日期:2004-07-10 修回日期:2005-03-16 出版日期:2005-09-10
  • 通讯作者: 史奕
  • 基金资助:
    中国科学院知识创新工程项目(KZ-CX-SW-01-01B-13);国家自然科学基金重点项目(40331014);中国科学院沈阳生态实验站基金资助项目(SYZ0302)

Nitrous oxide and methane emissions from different agricultural fields during freezing and thawing periods in the lower reaches of Liaohe Plain

ZHENG Jing1,3, WANG Chongyang4, WANG Yinghong2, LU Caiyan1,3, SHI Yi1,3, CHEN Xin1,3   

  1. 1. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;
    3. Graduate School of Chinese Academy of Science, Beijing 100039, China;
    4. Shenyang Agricultural University, Shenyang 110161, China
  • Received:2004-07-10 Revised:2005-03-16 Online:2005-09-10

摘要: 应用静态箱/气相色谱法对下辽河平原典型农田(大豆地、玉米地、水稻田)土壤融化期N2O和CH4排放通量进行了研究。结果表明,在融化期间,3种农田N2O排放量均较大,这段时期的农田是大气N2O的一个重要源;3种农田CH4排放不明显,成为大气CH4的汇。在融化期间,农田N2O排放量,旱田CH4排放量与箱内温度间均无显著相关性。而水稻田CH4排放量与箱内温度呈显著负相关,相对于生长季来说,这是土壤融化期间的特定现象。

关键词: 葡萄园, 管理水平, 节肢动物群落, 害虫, 天敌

Abstract: Flux of nitrous oxide and methane were measured in the lower reaches of Liaohe Plain by using static chamber-gas chromatographic techniques in thawing period.The plots included maize,soybean and paddy fields.The results showed that the flux of nitrous oxide in the three plots were high in the period indicating important N2O-releasing sources.The flux of methane in these plots was quite low in the period which inducated that the fields are important CH4-absorbing sinks.In thawing periods,temperature has no significant relationship with flux of nitrous oxide in the three plots.It is maybe a special phenomenon in contrast to that in the growing period.

Key words: Grapery, Management level, Arthropod community, Insect pest, Natural enemies of insect

中图分类号: