Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, China.
Ministry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang 330045, China.
Can J Microbiol. 2022 Jul 1;68(7):483-492. doi: 10.1139/cjm-2022-0031. Epub 2022 Mar 28.
Numerous studies have reported the dynamics of microbes when biochar was applied, whereas the information on the alterations of bacterial community after application of rapeseed straw-derived biochar is limited. A pot experiment with two rapeseed straw-derived biochar application treatments (with biochar application at the rate of 200 g/pot, C1, and without biochar application, 0 g/pot, C0) was conducted. No significant differences were observed in the number of operational taxonomic units, observed species, Shannon index, Simpson index, Chao1, ACE, and phylogenetic diversity whole tree between the C1 and C0 treatments. Taxonomic analysis at the phylum level showed that the abundances of and were higher in the C1 treatment compared to the C0 treatment, while and were observed with higher abundance in the C0 treatment compared to the C1 treatment. Taxonomic analysis at the genus level showed that the abundances of , unidentified , and were higher in the C1 treatment compared to the C0 treatment, while , and abundances were found to be higher in the C0 treatment compared to the C1 treatment. Obvious clusters were observed between the C1 and C0 treatments in both principal component analysis and nonmetric multidimensional scaling. These results indicate that soil bacterial community was altered after rapeseed straw-derived biochar was applied.
许多研究报道了生物炭施用时微生物的动态变化，然而，关于油菜秸秆衍生生物炭施用后细菌群落变化的信息有限。进行了一项盆栽试验，其中包括两个油菜秸秆衍生生物炭施用处理（以 200g/盆的速率施用生物炭，C1 和不施用生物炭，0g/盆，C0）。在 C1 和 C0 处理之间，操作分类单元数、观察到的物种数、香农指数、辛普森指数、Chao1、ACE 和系统发育多样性整个树没有观察到显著差异。在门分类水平的分类分析表明，与 C0 处理相比，C1 处理中 和 的丰度更高，而与 C1 处理相比，C0 处理中 和 的丰度更高。在属分类水平的分类分析表明，与 C0 处理相比，C1 处理中 、未鉴定 和 的丰度更高，而与 C1 处理相比，C0 处理中 、 和 的丰度更高。在主成分分析和非度量多维尺度分析中，C1 和 C0 处理之间都观察到了明显的聚类。这些结果表明，油菜秸秆衍生生物炭施用后土壤细菌群落发生了变化。
