Biochar enhanced organic matter transformation during pig manure composting: Roles of the cellulase activity and fungal community

被引：36

作者：

Yin, Yanan ^{[1
,2
]}

Li, Mengtong ^{[1
]}

Tao, Xiaohui ^{[1
]}

Yang, Chao ^{[1
]}

Zhang, Wenrong ^{[3
]}

Li, Haichao ^{[4
]}

Zheng, Yucong ^{[1
,2
]}

Wang, Xiaochang ^{[1
,2
]}

Chen, Rong ^{[1
,2
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Shaanxi Key Lab Environm Engn, 13 Yanta Rd, Xian 710055, Peoples R China

[2] Xian Univ Architecture & Technol, Int S&T Cooperat Ctr Urban Alternat Water Resource, Sch Environm & Municipal Engn, Key Lab Northwest Water Resource Environm & Ecol,M, 13 Yanta Rd, Xian 710055, Peoples R China

[3] Xian Univ Architecture & Technol, Sch Bldg Serv Sci & Engn, 13 Yanta Rd, Xian 710055, Peoples R China

[4] Swedish Univ Agr Sci, Dept Soil & Environm, Lennart Hjelms Vag 9, S-75007 Uppsala, Sweden

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2023年 / 333卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Biochar; Cellulase; Composting; Fungi; Organic matter; SOLID-WASTE; MICROBIAL COMMUNITIES; POULTRY MANURE; SUCCESSION; BACTERIAL; DYNAMICS; HUMIFICATION; SUBSTANCES; AMENDMENT;

D O I：

10.1016/j.jenvman.2023.117464

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fungal degradation of cellulose is a key step in the conversion of organic matter in composting. This study investigated the effects of adding 10% biochar (including, prepared from corn stalk and rape stalk corresponding to CSB and RSB) on organic matter transformation in composting and determined the role of cellulase and fungal communities in the conversion of organic matter. The results showed that biochar could enhance the conversion of organic matter, especially in RSB treatment. Biochar could increase cellulase activity, and RSB could enhance 33.78% and 30.70% the average activity of cellulase compared with the control and CSB treatments in the mesophilic to thermophilic phase, respectively. The results of high throughput sequencing demonstrated that Basidiomycota dominant in mesophilic phase, and Ascomycota dominant in other phases of composting. The redundancy analysis showed that Alternaria, Thermomycees, Aspergillus, Wallemia, and Melanocarpus might be the key fungi for the degradation of organic matter, and Fusarium, Penicillium, and Scopulariopsis may promote the conversion of organic matter. Network showed that the addition of RSB changed the interactions between fungal communities and organic matter transformation, and RSB treatment enriched members of Ascomycota related to organic matter transformation and cellulase activity. These results indicated that RSB improved organic matter conversion by enhancing the role of cellulase and fungal communities.

引用

页数：12

共 71 条

[1] Microbially-enhanced composting of olive mill solid waste (wet husk): Bacterial and fungal community dynamics at industrial pilot and farm level [J].