A shift from nitrification to denitrification-dominated N2O emission in an acidic soil following organic amendment

文献类型： 外文期刊

第一作者： Wang, Jing

作者： Wang, Jing;Huang, Qiao;Li, Yong;Tu, Xiaoshun;Chen, Zhaoxiong;Elrys, Ahmed S.;Cheng, Yi;Cheng, Yi;Ma, Lifeng

作者机构：

关键词： Acidic soil; Nitrification; Denitrification; N2O emission; Organic amendment

期刊名称：BIOLOGY AND FERTILITY OF SOILS （ 影响因子：6.605； 五年影响因子：7.116 ）

ISSN： 0178-2762

年卷期：

页码：

收录情况： SCI

摘要： Acidic soils are hotspots of global nitrous oxide (N2O) emission. The application of organic fertilizer with low carbon (C) to nitrogen (N) ratio (C:N) often stimulated N2O emission in acidic soils. However, how its use increases acidic soil N2O emission remains largely unclear. We thus conducted an aerobic (15) N tracing incubation experiment to quantify the effects of organic fertilizer input with low C:N on the contribution of denitrification and autotrophic and heterotrophic nitrification to N2O emission in an acidic soil. We found a shift from nitrification to denitrification-dominated N2O emission after adding organic fertilizer with low C:N into the studied acidic soil, and this shift was more pronounced with increasing the application rate of organic material. Therefore, organic fertilizer application with low C:N may stimulate N2O emission in acidic soils due to the stimulation of denitrification.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序