| 郭家文,刘高源,杨昆,刘凯,张顺生,潘波.不同蔗叶处理对红壤团聚体中有机碳和微生物的影响[J].农业环境科学学报,2025,44(10):2528-2537. |
| 不同蔗叶处理对红壤团聚体中有机碳和微生物的影响 |
| Effects of different sugarcane leaf treatments on microorganisms and organic carbon in red soil |
| 投稿时间：2024-10-16 |
| DOI：10.11654/jaes.2024-0879 |
| 中文关键词: 蔗叶 含碳物 土壤微生物 团聚体 有机碳 |
| 英文关键词: cane leaves carbon-containing substances soil microorganism aggregate organic carbon |
| 基金项目:云南省财政预研专项计划项目（2023KYZX-0）；国家重点研发计划项目（2022YFD2301105-05） |
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| 中文摘要: |
| 为探究蔗叶不同处理产物对云南蔗区典型红壤的影响，选取粉碎蔗叶（ZY）、蔗叶生物碳（SWT）及蔗叶焚烧物（FS）3种物质进行土壤培养试验并设对照（CK）处理，测定分析土壤中细菌、真菌的群落结构与多样性，及水稳性大团聚体、团聚体中有机碳含量的变化。结果表明：相较于CK，所有处理下[0.25，0.5] mm和（0.5，1] mm两个粒径的团聚体占比均降低，其他粒径团聚体占比无差异，同时[0.25，0.5] mm团聚体中有机碳含量下降。ZY处理使土壤的细菌和真菌结构均发生改变。SWT处理提高了细菌的物种数量和多样性，但未改变真菌的群落结构。FS处理与SWT处理的作用类似。研究表明，在有机质和氮相对匮乏的环境中，ZY、SWT和FS均不利于团聚体的形成和团聚体中有机碳的增加。 |
| 英文摘要: |
| To investigate the effects of different sugarcane leaf-derived materials on typical red soil in sugarcane-growing regions of Yunnan, a soil incubation experiment was conducted with a control group（CK）and three treatments, including shredded sugarcane leaves （ZY）, sugarcane leaf biochar（SWT）, sugarcane leaf ash（FS）. This study analyzed changes in bacterial and fungal community structures and diversity, as well as in the proportion of water-stable macroaggregates and the organic carbon content within soil aggregates. The results showed that, compared to the CK, all treatments resulted in a decrease in the proportion of aggregates in the[0.25, 0.5] mm and（0.5, 1] mm size ranges, while no significant differences were observed for other aggregate size classes. Additionally, a decrease was observed in the organic carbon content in the[0.25, 0.5] mm aggregates. The ZY treatment exhibited changes in both bacterial and fungal community structures. The SWT treatment increased bacterial species richness and diversity but did not affect the fungal community structure. The effects of the FS treatment were similar to those of the SWT treatment. These findings indicate that under conditions of relatively low organic matter and nitrogen availability, treatments with ZY, SWT, and FS were not conducive to the formation of soil aggregates or the accumulation of organic carbon within aggregates. |
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