土壤质地、温度和Eh对稻田甲烷排放的影响
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

* 国家自然科学基金,批准号:49371039


EFFECTS OF SOIL TEXTURE, SOIL TEMPERATURE AND Eh ON METHANE EMISSIONS FROM RICE PADDY FIELDS
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文报道在田间条件下,土壤质地、温度和Eh影响稻田CH4排放通量的研究结果。中国科学院封丘生态试验站的小区试验表明,在当地常规水分管理即间歇灌溉条件下,供试小区稻田的CH4平均排放通量仅为0.16-1.86mgCH4/m2h。通过成对数据t检验及用二项分布统计方法分析表明,供试条件下,土壤温度和Eh(5cm)对稻田CH4排放通量日变化有极显著影响,但它们不是决定稻田CH4排放通量季节变化的主要因素。土壤质地对稻田平均CH4排放通量具有显著的影响作用,1993年和1994年二年的结果表明,粘质土壤排放的CH4显著或极显著低于壤质和砂质土壤。但砂质和壤质土壤CH4平均排放通量的比较结果在年际之间不一致。

    Abstract:

    Effects of soil texture,soil temperature and soil Eh at 5 cm on CH4 emissions from rice paddy fields were investigated in the Fengqiu Ecological Experimental Station, Chinese Academy of Sciences, under field conditions in 1993 and 1994. The results showed that CH4 emissions from the studied fields were low, ranging from 0.16-1.86mg CH4/m2h in the mean fluxes throughout the period of rice growth under intermittent irrigation. Soil temperature and soil Eh might not be dominant factors influencing the patterns of seasonal variation of CHa flux from the rice paddy fields, but they affected the diurnal variations significantly. The CH4 emissions from clayey rice paddy fields were significantly lower than those From the sandy and loamy paddy fields in 1993 and 1994. The highest CHCH4 emission was observed in the loamy field in 1993 but in the sandy field in 1994.

    参考文献
    相似文献
    引证文献
引用本文

蔡祖聪,沈光裕,颜晓元,鹤田治雄,八木一行,阳捷行.土壤质地、温度和Eh对稻田甲烷排放的影响[J].土壤学报,1998,35(2):145-154. DOI:10.11766/trxb199611080201 Cai Zu-cong, Shen Guang-yu, Yan Xiao-yuan, Tsuruta H, Yagi K, Minami K. EFFECTS OF SOIL TEXTURE, SOIL TEMPERATURE AND Eh ON METHANE EMISSIONS FROM RICE PADDY FIELDS[J]. Acta Pedologica Sinica,1998,35(2):145-154.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:1996-11-08
  • 最后修改日期:1997-04-23
  • 录用日期:
  • 在线发布日期: 2013-02-25
  • 出版日期: