植物生态学报 ›› 2003, Vol. 27 ›› Issue (6): 792-797.DOI: 10.17521/cjpe.2003.0113

所属专题: 碳水能量通量

• 论文 • 上一篇    下一篇

内蒙古草甸草原CH4和N2O排放通量的时间变异

王艳芬, 马秀枝, 纪宝明, 杜睿, 陈佐忠, 王庚辰, 王跃思, 万小伟   

  • 发布日期:2003-06-10
  • 通讯作者: 王艳芬

Diurnal and Seasonal Variation in Methane and Nitrous Oxide Fluxes in Meadow Steppe of Inner Mongolia

WANG Yan-Fen, MA Xiu-Zhi, JI Bao-Ming, DU Rui, CHEN Zuo-Zhong, WANG Geng-Chen, WANG Yue-Si, WAN Xiao-Wei   

  • Published:2003-06-10
  • Contact: WANG Yan-Fen

摘要:

1998年6月1日、7月2日、8月3日和9月1日用静态箱-气相色谱法对内蒙古锡林河流域草甸草原CH4和N2O排放通量的昼夜观测表明,天然草原是N2O的源、CH4的汇,其排放和吸收具有明显的昼夜变化规律。4次昼夜观测的结果还表明,草甸草原排放N2O和吸收CH4的能力具有强烈的季节变化规律

Abstract:

Temperate and tropical oxic soils usually exhibit low levels of atmospheric CH4 oxidation, which are estimated to consume about 10% of the atmospheric CH4. It has been reported that the semi-arid grasslands represent a significant global sink for CH4 and