Zhang Si-Hai, Wang Yue, Hu Jin-Jie, Chen Wei-Jia, Wu Jia-Le, Seah Rachel Wan Xin, Zhu Yang-Chun, Guo Zhi-Ping, Chen Jie
College of Liangshan, Lishui University, Lishui 323000, China.
College of Horticulture Science, Zhejiang A&F University, Hangzhou 311300, China.
Open Life Sci. 2023 Aug 8;18(1):20220681. doi: 10.1515/biol-2022-0681. eCollection 2023.
Bamboo charcoal, a type of manufactured biochar, is produced by pyrolyzing bamboo residue under anoxic conditions. Its beneficial properties in absorption, catalyst support, and agricultural function have attracted significant attention; however, relatively few studies have examined its effects on the soil microbiota. In this study, we analyzed the effects of bamboo charcoal on soil physicochemical properties, enzymes, and microbial community structure in tea plantations and investigated the optimal amount of bamboo charcoal to be added to organic fertilizer. The results show that bamboo charcoal can further increase soil available nitrogen, total and available phosphorus and potassium, organic carbon content, pH, and urease activity. However, only the combined use of bamboo charcoal and organic fertilizer significantly increased total nitrogen, sucrase, and β-glucosidase activities in the soil. Bamboo charcoal also significantly increased the Chao1 and Shannon indices of microbiota diversity in a concentration-dependent manner. The structure of the bacterial community changed significantly after the bamboo charcoal addition, with , , and increasing and decreasing. This study provides fundamental insights into the suitability of bamboo charcoal application for the ecological remediation of diseased soils.
竹炭是一种人造生物炭，通过在缺氧条件下热解竹渣而产生。其在吸附、催化剂载体和农业功能方面的有益特性已引起广泛关注；然而，相对较少的研究考察了其对土壤微生物群的影响。在本研究中，我们分析了竹炭对茶园土壤理化性质、酶和微生物群落结构的影响，并研究了添加到有机肥中的竹炭最佳用量。结果表明，竹炭可进一步提高土壤有效氮、全磷、有效磷和钾、有机碳含量、pH值和脲酶活性。然而，只有竹炭与有机肥联合使用才能显著提高土壤中的全氮、蔗糖酶和β-葡萄糖苷酶活性。竹炭还以浓度依赖的方式显著提高了微生物群多样性的Chao1和Shannon指数。添加竹炭后细菌群落结构发生显著变化，其中[具体细菌名称1]、[具体细菌名称2]和[具体细菌名称3]增加，[具体细菌名称4]减少。本研究为竹炭在病土生态修复中的应用适宜性提供了基础见解。
