| 王宇东,王艳,贺立琨,王云旭,刘汝海,郑浩,李锋民.生物炭与铁基材料混合施用对土壤中噻虫嗪去除的影响研究[J].农业环境科学学报,2026,45(3):603-611. |
| 生物炭与铁基材料混合施用对土壤中噻虫嗪去除的影响研究 |
| Effects of co-application of biochar and iron-based materials on the removal of thiamethoxam in soil |
| 投稿时间：2025-03-05 |
| DOI：10.11654/jaes.2025-0216 |
| 中文关键词: 生物炭 铁粉 噻虫嗪 生物利用度 |
| 英文关键词: biochar iron powder thiamethoxam bioavailability |
| 基金项目:山东省重点研发计划项目（2022SFG0302）；山东省自然科学基金项目（ZR2023MD004，ZR2020MD118） |
| 作者 | 单位 | E-mail | | 王宇东 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | | | 王艳 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | | | 贺立琨 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | | | 王云旭 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | | | 刘汝海 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | ruhai@ouc.edu.cn | | 郑浩 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | | | 李锋民 | 中国海洋大学环境科学与工程学院, 教育部海洋环境与生态重点实验室, 山东 青岛 266100 | |
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| 中文摘要: |
| 生物炭是土壤改良剂，铁基材料则有助于有机污染物的降解。本研究旨在探讨生物炭与铁基材料混合施用对土壤中噻虫嗪（TMX）降解的影响及其机制。通过开展吸附试验和土壤模拟实验，分析生物炭和铁基材料联合施用对TMX的吸附效果及降解的影响与机制。结果表明：秸秆生物炭具有更大的吸附容量，且吸附强度弱于果壳生物炭，更有利于发生表面化学反应。单独施用生物炭可通过较强的吸附作用固定土壤中的TMX，延缓其降解，而零价铁显著促进TMX的降解，尤其与秸秆生物炭混合施用时，降解率达到85.7%。土壤TMX的降解以化学反应为主，秸秆生物炭与零价铁联合施用下，微生物的作用约占12.0%。生物炭与铁基材料的混合施用显著提高了脲酶和过氧化氢酶活性。研究表明，生物炭与铁基材料的联合施用在改善土壤性质的同时，对TMX污染的阻控与修复方面展现出了较好的应用潜力。 |
| 英文摘要: |
| Biochar is a soil conditioner, while iron-based materials contribute to the degradation of organic pollutants. This study aims to explore the effect and mechanism of the mixed application of biochar and iron-based materials on the degradation of thiamethoxam（TMX） in soil. Adsorption tests and soil simulation experiments were carried out to analyze the adsorption effect and degradation effect and mechanism of the combined application of biochar and iron-based materials on TMX. The results showed that straw biochar had a larger adsorption capacity and weaker adsorption strength than fruit shell biochar, which was more conducive to surface chemical reactions. Biochar alone could fix TMX in soil through strong adsorption and delay its degradation, while zero-valent iron significantly promoted the degradation of TMX, especially when mixed with straw biochar, the degradation rate reached 85.7%. The degradation of soil TMX was mainly chemical reaction, and the role of microorganisms was about 10%. The mixed application of biochar and iron-based materials significantly increased the activity of urease and catalase. In general, the combined application of biochar and iron-based materials can effectively improve the degradation efficiency of TMX. While improving soil properties, this mixed application showed good application potential in the control and remediation of TMX pollution in soil. |
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