Stoichiometric ratio of dissolved organic carbon to nitrate regulates nitrous oxide emission from the biochar-amended soils

文献类型: 外文期刊

第一作者: Lan, Z. M.

作者: Lan, Z. M.;Chen, C. R.;Rashti, M. Rezaei;Yang, H.;Zhang, D. K.;Lan, Z. M.

作者机构:

关键词: Biochar;Stoichiometry;Dissolved organic C;Nitrate;Nitrous oxide;Denitrification

期刊名称:SCIENCE OF THE TOTAL ENVIRONMENT ( 影响因子:7.963; 五年影响因子:7.842 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Biochar has the potential to mitigate nitrous oxide (N2O) emissions from soils. However, the mechanisms responsible for N2O emission in biochar-amended soils are yet to be elucidated. In this study, an incubation experiment was carried out to investigate the effects of seven biochars (eucalyptus, softwood mixture, mallee, jarrah, peanut shell, green waste and radiata pine) on the stoichiometric shifts of dissolved organic carbon (DOC), nitrate (NO3--) and N2O emission in two contrasting soils (Ferrosol with 53% total C, 0.46% total N; Tenosol with 0.4% total C, 0.01% total N). All biochar treatments were found to significantly reduce N2O emission in Tenosol by 61-72%. However, in Ferrosol, biochars' impacts on N2O emission were variable, with only peanut shell, green waste and radiata pine bicohars significantly reducing N2O emission by 17-23%. A decrease in NO3- availability in most biochar-amended treatments also was observed in both soils compared with the control. The N2O fluxes in Ferrosol were mainly regulated by the shifts in the availability and stoichiometry of DOC and NO3- induced by the biochar amendments. The DOC derived from biochars increased DOC:NO3- ratio in Ferrosol at the beginning of the experiment, but these effects disappeared 7 days after incubation. Overall, the N2O fluxes were C-limited due to the presence of high concentrations of NO3- in Ferrosol. However, in Tenosol, the relationship between stoichiometry of DOC:NO3- and N2O fluxes was much weaker than Ferrosol and N2O fluxes mainly limited by the concentration of NO3-. This study demonstrated that the mechanisms responsible for biochar effects on soil N2O fluxes are considered to be soil and biochar specific. (C) 2016 Elsevier B.V. All rights reserved.

分类号: X1

  • 相关文献

[1]A distinctive root-inhabiting denitrifying community with high N2O/(N2O+N-2) product ratio. Ai, Chao,Liang, Guoqing,Wang, Xiubin,Sun, Jingwen,He, Ping,Zhou, Wei,He, Ping.

[2]Gaseous losses of fertilizer nitrogen from a citrus orchard in the red soil hilly region of Southeast China. Ding, Hong,Zheng, Xiangzhou,Zhang, Yushu,Zhang, Jing,Ding, Hong,Chen, Deli.

[3]Interaction between nitrification, denitrification and nitrous oxide production in fumigated soils. Wang, Qiuxia,Mao, Liangang,Ma, Taotao,Li, Yuan,Ouyang, Canbin,Guo, Meixia,Cao, Aocheng,Yan, Dongdong,Wang, Qiuxia,Li, Yuan,Ouyang, Canbin,Cao, Aocheng. 2015

[4]Simulation of nitrous oxide emissions at field scale using the SPACSYS model. Wu, L.,Zhang, Xubo,Rees, R. M.,Tarsitano, D.,Jones, S. K.,Zhang, Xubo,Whitmore, A. P..

[5]Sugarcane bagasse biochars impact respiration and greenhouse gas emissions from a latosol. Deng, Wangang,Deng, Wangang,Wang, Hailong,Van Zwieten, Lukas,Lin, Zhaomu,Liu, Xingyuan,Wang, Hailong,Sarmah, Ajit K.,Wang, Hailong.

[6]Effects of carbon sources and COD/N ratio on N2O emissions in subsurface flow constructed wetlands. Lyu, Wanlin,Huang, Lei,Xiao, Guangquan,Chen, Yucheng.

[7]Effect of environmental conditions on nitrate removal from groundwater using biodenitrification supported by biodegradable snack ware. Yu, Xiang,Xing, Lijun,Wang, Xuming,Yu, Xiang,Huang, Baichun,Xu, Zhijun. 2010

[8]Heterotrophic Denitrification of Nitrate-Contaminated Water Using Different Solid Carbon Sources. Xu, Ying,Li, Jun,Xu, Ying,Qiu, Tian-Lei,Han, Mei-Lin,Wang, Xu-Ming. 2011

[9]Denitrification-dependent anammox activity in a permanently flooded fallow ravine paddy field. Zhou, Sheng,Borjigin, Sodbilig,Riya, Shohei,Hosomi, Masaaki,Borjigin, Sodbilig.

[10]The relationship between anammox and denitrification in the sediment of an inland river. Zhou, Sheng,Zhou, Sheng,Borjigin, Sodbilig,Riya, Shohei,Terada, Akihiko,Hosomi, Masaaki.

[11]Simultaneous removal of nitrate and pentachlorophenol from simulated groundwater using a biodenitrification reactor packed with corncob. Wang, Xuming,Xing, Lijun,Qiu, Tianlei,Han, Meilin.

[12]Impact of biochar on nitrate accumulation in an alkaline soil. Zhang, Qing-Zhong,Du, Zhang-Liu,Liu, Xin-Ren,Wang, Yi-Ding,Wang, Xia-Hui. 2013

[13]Loss of nitrogen by ammonia volatilisation and denitrification after application of urea to maize in Shanxi Province, China. Yang, Z. P.,Turner, D. A.,Denmead, O. T.,Chen, D.,Freney, J. R.,Yang, Z. P.,Zhang, J. J.,Wang, Y. L.,Chen, M. C.,Zhang, Q.,Denmead, O. T.,Freney, J. R..

[14]Effect of nitrogen form and root-zone pH on growth and nitrogen uptake of tea (Camellia sinensis) plants. Ruan, Jianyun,Gerendas, Joska,Hardter, Rolf,Sattelmacher, Burkhard.

[15]Effect of Soil C, N and P Stoichiometry on Soil Organic C Fractions After Afforestation. Zhao Fazhu,Pang Guowei,Bai Hongying,Wang Jun,Zhang Lu,Sun Jiao,Ren Chengjie,Han Xinhui,Yang Gaihe. 2017

[16]Interactions between biochar and soil organic carbon decomposition: Effects of nitrogen and low molecular weight carbon compound addition. Jiang, Xinyu,Jiang, Xinyu,Jiang, Xinyu,Haddix, Michelle L.,Cotrufo, M. Francesca,Cotrufo, M. Francesca.

[17]Carbon: Nitrogen: Phosphorus Stoichiometry in Fungi: A Meta-Analysis. Zhang, Ji,Zhang, Ji,Elser, James J.,Elser, James J.. 2017

[18]The interaction of phenolic acids with Fe(III) in the presence of citrate as studied by isothermal titration calorimetry. Yang, Senpei,Bai, Guangling,Chen, Lingli,Shen, Qun,Zhao, Guanghua,Diao, Xianmin. 2014

[19]Linking nutrient strategies with plant size along a grazing gradient: Evidence from Leymus chinensis in a natural pasture. Li Xi-liang,Liu Zhi-ying,Ren Wei-bo,Ding Yong,Ji Lei,Guo Feng-hui,Hou Xiang-yang. 2016

[20]Inhibiting sulfate reducing bacteria activity by denitrification in an anaerobic baffled reactor: influencing factors and mechanism analysis. Zhang, Zhaohan,Feng, Yujie,Ren, Nanqi,Zhang, Zhaohan,Liu, Guangmin,Chen, Zhongxi,Zhang, Zhaohan,Zhan, Peirong. 2014

作者其他论文 更多>>