| 刘超俊,卢玢宇,陈井影,张子晴,周仲魁,张文龙,刘武.AMF与螯合剂强化植物间作修复铀污染土壤效应[J].农业环境科学学报,2026,45(2):383-390. |
| AMF与螯合剂强化植物间作修复铀污染土壤效应 |
| Effects of AMF and chelating agent on strengthening plant intercropping to repair uranium contaminated soil |
| 投稿时间：2025-02-14 修订日期：2025-06-14 |
| DOI：10.11654/jaes.2025-0131 |
| 中文关键词: 铀污染土壤 植物修复 间作 从枝菌根真菌（AMF） 螯合剂 |
| 英文关键词: uranium contaminated soil phytoremediation intercropping mode AMF chelator |
| 基金项目:国家自然科学基金项目（22166004）；江西省自然科学基金项目（20232BAB203047）；抚州市社会发展指导性科技计划项目（抚科计字〔2021〕12号） |
| 作者 | 单位 | E-mail | | 刘超俊 | 东华理工大学水资源与环境工程学院, 南昌 330013
地下水污染成因与修复江西省重点实验室, 南昌 330013 | | | 卢玢宇 | 东华理工大学水资源与环境工程学院, 南昌 330013
地下水污染成因与修复江西省重点实验室, 南昌 330013 | lubinyu2004@163.com | | 陈井影 | 东华理工大学水资源与环境工程学院, 南昌 330013
地下水污染成因与修复江西省重点实验室, 南昌 330013 | cjy006@ecut.edu.cn | | 张子晴 | 东华理工大学水资源与环境工程学院, 南昌 330013 | | | 周仲魁 | 东华理工大学水资源与环境工程学院, 南昌 330013
地下水污染成因与修复江西省重点实验室, 南昌 330013 | | | 张文龙 | 东华理工大学水资源与环境工程学院, 南昌 330013 | | | 刘武 | 东华理工大学水资源与环境工程学院, 南昌 330013 | |
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| 中文摘要: |
| 为了深入研究螯合剂-丛枝菌根真菌（Arbuscular mycorrhizal fungi，AMF）-植物复合体系对铀污染土壤的修复效应，本研究基于植物间作体系，探讨了柠檬酸（Citric acid，CA）和摩西球囊霉（Glomus mosseae，Gm）联合作用对铀污染土壤根际环境的影响。结果表明：在植物间作体系中，间作黑麦草对铀污染土壤的修复效果更为显著，其生物量增加57.70%，根际土壤中的铀含量降低10.31%。在摩西球囊霉与柠檬酸联合处理的实验中，与对照组相比，联合处理显著增加了根际土壤中有机酸的种类与含量，其中草酸、乳酸和乙酸含量分别提升10.52%、161.38%和28.54%。此外，联合处理组中的根际土壤惰性铀的含量降低了约10个百分点，这说明柠檬酸与摩西球囊霉的协同作用能够有效促进惰性铀向有机质结合态、无定型铁锰氧化物结合态等潜在活性态铀的转化。同时，联合修复导致根际土壤中Si—O、C—N、C—O等负电基团的数量减少，从而降低了根际土壤对铀酰离子的吸附能力。 |
| 英文摘要: |
| To delve into the remediation effect of the chelator-arbuscular mycorrhizal fungi（AMF）- plant complex system on uraniumcontaminated soil, this study explored the combined impact of citric acid（CA）and Glomus mosseae（Gm）on the rhizosphere environment of uranium-contaminated soil based on a plant intercropping system. The results showed that in the plant intercropping system, the remediation effect of ryegrass intercropping on uranium-contaminated soil was more pronounced, with a 57.70% increase in biomass and a 10.31% reduction in uranium content in the rhizosphere soil. In the experiment combining the treatment of Glomus mosseae and citric acid, compared with the control group, the combined treatment significantly increased the types and concentrations of organic acids in the rhizosphere soil, with increases of 10.52%, 161.38%, and 28.54% in the concentrations of oxalic acid, lactic acid, and acetic acid, respectively. Furthermore, the content of inert uranium in the rhizosphere soil of the combined treatment group decreased by approximately 10 percentage points, indicating that the synergistic effect of citric acid and Glomus mosseae can effectively promote the conversion of inert uranium into potentially active uranium forms such as those bound to organic matter and amorphous iron-manganese oxides. Additionally, the combined remediation led to a decrease in the number of negatively charged groups such as Si—O, C—N, and C—O in the rhizosphere soil, which subsequently reduced the adsorption capacity of the rhizosphere soil for uranyl ions. |
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