Biogeosciences
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Articles | Volume 14, issue 11
Articles | Volume 14, issue 11
https://doi.org/10.5194/bg-14-2851-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-14-2851-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 14, issue 11
Research article
 | 
13 Jun 2017
Research article |  | 13 Jun 2017

Biochar reduces yield-scaled emissions of reactive nitrogen gases from vegetable soils across China

Changhua Fan, Hao Chen, Bo Li, and Zhengqin Xiong

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Short summary
Intensive vegetable fields suffered very low N use efficiency and very high N2O emissions as compared to other ecosystems. We have demonstrated that two contrasting biochars affected gaseous reactive nitrogen intensity (N2O, NO, NH3, yield) across four major vegetable soils in China. Biochar affects gaseous Nr or yield largely depending on soil types. Both wheat straw biochar (Bw) and swine manure biochar (Bm) decreased GNI with Bw mitigated gaseous Nr, whereas Bm improved yield.
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