Characteristics of carbon, nitrogen, phosphorus and sulfur cycling genes, microbial community metabolism and key influencing factors during composting process supplemented with biochar and biogas residue
文献类型： 外文期刊
作者： Wang, Nanyi 1 ; Zhao, Keqi 1 ; Li, Fanghong 1 ; Peng, Hua 3 ; Lu, Yaoxiong 3 ; Zhang, Lihua 1 ; Pan, Junting 4 ; Jiang, Shilin 1 ; Chen, Anwei 1 ; Yan, Binghua 1 ; Luo, Lin 1 ; Huang, Hongli 1 ; Li, Hui 4 ; Wu, Genyi 1 ; Zhang, Jiachao 1 ;
作者机构： 1.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China
2.Minist Ecol & Environm PR China, South China Inst Environm Sci, State Environm Protect Key Lab Environm Pollut Hlt, Guangzhou 510655, Peoples R China
3.Hunan Acad Agr Sci, Inst Agr Environm & Ecol, Changsha 410125, Hunan, Peoples R China
4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
5.Hunan Acad Forestry, State Key Lab Utilizat Woody Oil Resource, Changsha 410029, Peoples R China
关键词： Biochar; Biogas residue; Functional gene; Microbial community metabolism; Composting
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.889； 五年影响因子：11.139 ）
ISSN： 0960-8524
年卷期： 2022 年 366 卷
页码：
收录情况： SCI
摘要： Carbon (C), nitrogen (N), phosphorus (P), and sulfur (S) cycling functional genes and bacterial and fungal communities during composting with biochar and biogas residue amendments were studied. Correlations between microbial community structure, functional genes and physicochemical properties were investigated by network analysis and redundancy analysis. It was shown that the gene of acsA abundance accounted for about 50% of the C-related genes. Biogas residue significantly decreased the abundance of denitrification gene nirK. Biogas residues can better promote the diversity of bacteria and fungi during composting. Biochar significantly increased the abundance of Humicola. Redundancy analysis indicated that pile temperature, pH, EC were the main physicochemical factors affecting the microbial community. WSC and NO3--N have significant correlation with C, N, P, S functional genes. The research provides a theoretical basis for clarifying the metabolic characteristics of microbial communities during composting and for the application of biochar and biogas residues in composting.
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