Excessive application of the long-term herbicide chlorimuron-ethyl has resulted in series of environmental problems. Bioaugmentation usually a useful method in contaminated-environment remediation. In this study, the strain Methanolivorans CHL1^T with highly chlorimuron-ethyl degrading efficiency was employed to assess its remediation effects on chlorimuron-ethyl-contaminated soil. The chlorimuron-ethyl residues in the soils and the survival condition of strain CHL1^T were detected. Meanwhile, the shifts of soil microbial catabolic profile were investigated by MicroResp™ analysis for the first time. The results indicated that strain CHL1^T significantly shorten the half-life (6–17 days) of chlorimuron-ethyl and removed 95–100% of chlorimuron-ethyl by the end of the experiment. Meanwhile, the strain CHL1 could inhabit in soil steadily (4.2–4.7 × 10⁷ per g dry soil) for a long time. The inoculation with strain CHL1 significantly shorten and relieved the disturbance effects of chlorimuron-ethyl on soil CLPPs. After inoculation with strain CHL1 60 days, the basal respiration rates and Shannon-Wiener indices of groups S₁₀₊ and S₃₀₊ had recovered to the control level. Even in the high chlorimuron-ethyl-treated groups (S₁₀₀), the basal respiration rates and Shannon-Wiener indices were significantly higher in S₁₀₀₊ than that in S_100-. These results show the outstanding remediation effects of strain CHL1 and provide new insights into the assessment of the remediation process of chlorimuron-ethyl contaminated soils.

长期除草剂氯嘧磺隆的过量使用导致一系列环境问题。生物强化通常是污染环境修复中的一种有用方法。在这项研究中，具有较高的嘧磺隆-乙基降解效率的菌株甲醇ivorans CHL1 ^T被用来评估其对受氯嘧磺隆-乙基污染的土壤的修复效果。检测了土壤中的氯嘧磺隆残留量和CHL1 ^T菌株的存活条件。同时，首次通过MicroResp™分析研究了土壤微生物分解代谢特征的变化。结果表明CHL1 ^T菌株到实验结束时，显着缩短了氯嘧磺隆的半衰期（6-17天），并去除了95-100％的氯嘧磺隆。同时，CHL1菌株可以长期稳定地栖息在土壤中（每克干燥土壤4.2-4.7×10 ⁷）。CHL1菌株的接种显着缩短并缓解了嘧磺隆对土壤CLPPs的干扰作用。接种CHL1 60天后，S ₁₀₊和S ₃₀₊组的基础呼吸速率和Shannon-Wiener指数已恢复至对照水平。即使在高氯嘧磺隆处理组（S ₁₀₀）时，基础呼吸速率和Shannon-维纳指数均处于S显著更高₁₀₀₊比处于S _100-。这些结果显示了菌株CHL1的杰出修复作用，并为评估受氯嘧磺隆-乙基污染土壤的修复过程提供了新的见识。