Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants
Aerobic composting is one of the methods for the resource utilization of submerged plant residues. This study investigated the effects of biochar, wetland sediments and microbial agents added individually or combined on the humification process, lignocellulose degradation and microbial communities d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Fermentation |
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| Online Access: | https://www.mdpi.com/2311-5637/10/1/70 |
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| author | Hongjie Wang Zhiwei Su Shengnan Ren Panyue Zhang Hui Li Xiaoping Guo Ling Liu |
| author_facet | Hongjie Wang Zhiwei Su Shengnan Ren Panyue Zhang Hui Li Xiaoping Guo Ling Liu |
| author_sort | Hongjie Wang |
| collection | DOAJ |
| description | Aerobic composting is one of the methods for the resource utilization of submerged plant residues. This study investigated the effects of biochar, wetland sediments and microbial agents added individually or combined on the humification process, lignocellulose degradation and microbial communities during <i>Ceratophyllum demersum</i> and <i>Potamogeton wrightii</i> composting. The results showed that the addition of wetland sediment and biochar was found to significantly elevate the composting temperature and humification of compost products. The average content of lignin in wetland sediment and/or biochar treatments was 12.2–13.5%, which was higher than the control group (10.9–11.45%). Compared with the organic matter (19.4%) and total nitrogen concentration (35.3%) of compost treated with complex microbial agent treatments, the homemade microbial agents significantly increased the values by 22.1% and 41.0%, respectively. By comparing the differences in microbial communities among different treatments, the sediments and homemade agents demonstrated greater increases in activity and diversity of lignocellulose degradation-related microbes, especially for <i>Truepera</i> and <i>Actinomarinale.</i> Humus component and temperature were the most critical parameters influencing the changes in the bacterial community. Based on these results, a combination of biochar and homemade agents was a promising additive for an effective composting strategy, and sediment was identified as a potential control of bacterial diversity in wetland plant compost. |
| first_indexed | 2024-03-08T10:57:35Z |
| format | Article |
| id | doaj.art-c1d1839217b9494db5ac231b7b9e61a4 |
| institution | Directory Open Access Journal |
| issn | 2311-5637 |
| language | English |
| last_indexed | 2024-03-08T10:57:35Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fermentation |
| spelling | doaj.art-c1d1839217b9494db5ac231b7b9e61a42024-01-26T16:23:58ZengMDPI AGFermentation2311-56372024-01-011017010.3390/fermentation10010070Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged PlantsHongjie Wang0Zhiwei Su1Shengnan Ren2Panyue Zhang3Hui Li4Xiaoping Guo5Ling Liu6Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding 071002, ChinaHebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding 071002, ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaCollege of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaHebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding 071002, ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaHebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding 071002, ChinaAerobic composting is one of the methods for the resource utilization of submerged plant residues. This study investigated the effects of biochar, wetland sediments and microbial agents added individually or combined on the humification process, lignocellulose degradation and microbial communities during <i>Ceratophyllum demersum</i> and <i>Potamogeton wrightii</i> composting. The results showed that the addition of wetland sediment and biochar was found to significantly elevate the composting temperature and humification of compost products. The average content of lignin in wetland sediment and/or biochar treatments was 12.2–13.5%, which was higher than the control group (10.9–11.45%). Compared with the organic matter (19.4%) and total nitrogen concentration (35.3%) of compost treated with complex microbial agent treatments, the homemade microbial agents significantly increased the values by 22.1% and 41.0%, respectively. By comparing the differences in microbial communities among different treatments, the sediments and homemade agents demonstrated greater increases in activity and diversity of lignocellulose degradation-related microbes, especially for <i>Truepera</i> and <i>Actinomarinale.</i> Humus component and temperature were the most critical parameters influencing the changes in the bacterial community. Based on these results, a combination of biochar and homemade agents was a promising additive for an effective composting strategy, and sediment was identified as a potential control of bacterial diversity in wetland plant compost.https://www.mdpi.com/2311-5637/10/1/70submerged plants compostbiocharlignocellulose degradationmicrobial agentsmicrobial community |
| spellingShingle | Hongjie Wang Zhiwei Su Shengnan Ren Panyue Zhang Hui Li Xiaoping Guo Ling Liu Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants Fermentation submerged plants compost biochar lignocellulose degradation microbial agents microbial community |
| title | Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants |
| title_full | Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants |
| title_fullStr | Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants |
| title_full_unstemmed | Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants |
| title_short | Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants |
| title_sort | combined use of biochar and microbial agents can promote lignocellulosic degradation microbial community optimization during composting of submerged plants |
| topic | submerged plants compost biochar lignocellulose degradation microbial agents microbial community |
| url | https://www.mdpi.com/2311-5637/10/1/70 |
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