文献类型： 外文期刊

作者： Jia, X. ¹ ; Wang, M. ¹ ; Yuan, W. ¹ ; Shah, S. ¹ ; Shi, W. ² ; Meng, X. ³ ; Ju, X. ⁴ ; Yang, B. ⁵ ;

作者机构： 1.North Carolina State Univ, Dept Biol & Agr Engn, Raleigh, NC USA

2.North Carolina State Univ, Dept Soil Sci, Raleigh, NC USA

3.Lanzhou Jiaotong Univ, Sch Biotechnol & Chem, Lanzhou, Gansu, Peoples R China

4.China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China

5.Natl Engn Res Ctr Informat Technol Agr, Beijing, Peoples R China

关键词： Biochar; Chicken manure; Co-composting; N2O emission; Nitrogen transformation

期刊名称：TRANSACTIONS OF THE ASABE （ 影响因子：1.188； 五年影响因子：1.695 ）

ISSN： 2151-0032

年卷期： 2016 年 59 卷 5 期

页码：

收录情况： SCI

摘要： This study examined the effect of biochar addition on nitrous oxide (N2O) emission and nitrogen (N) transformation in co-composting of biochar and chicken manure. Compared with the control (no biochar), addition of 20% biochar resulted in a 59.8% decrease in the major peak of N2O emission. Ammonium (NH4+-N) and nitrate (NO3--N) contents in the final product with 20% biochar addition increased by 67.3% and 66.7%, respectively, compared to the control. Turning frequency (TF), the primary parameter of aeration and temperature control in the biochar-manure co-composting process, was also investigated. Results indicated that less frequent turning (e.g., turning every seven days) promoted NH4+-N and NO3-N retention but increased peak N2O emission by 58.1% compared with daily turning. Overall, biochar can be an ideal bulking agent for stabilizing N-rich materials to minimize N2O emission and, with proper aeration, can enhance nitrogen retention based on this laboratory study.