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本文提出了一种检测及评价土壤生态系统中遗传毒性的新方法。赤子爱胜蚓（Ｅｉｓｅｎｉａｆｏｅｔｉｄａ）经人工土壤法染毒，暴露于不同剂量的两种新型杀虫剂———呲虫啉和抑食肼中，观察它们对蚯蚓精子形态的影响。实验结果表明，呲虫啉在浓度大于０．５ｍｇ／ｋｇ干土时对蚯蚓精子畸变率有明显影响（Ｐ＜０．０１），并呈现剂量效应关系；而抑食肼在浓度高达１００ｍｇ／ｋｇ干土时，与对照组相比才有显著差异（Ｐ＜０．０５）。
This paper presents a new method for the detection and evaluation of genotoxicity in soil ecosystems. Eisenia foetida was exposed to two new insecticides - arbovir and dampening hydrazine at different doses - to observe their effects on the morphology of earthworm sperm. The experimental results showed that when the concentration of pyrophylline was higher than 0.5mg / kg dry soil, the distortion rate of earthworm sperm had a significant effect (P <0.01), and showed a dose-effect relationship; while the concentration of inhibitory hydrazine reached as high as 100mg / kg Dry soil, compared with the control group were significant differences (P <0.05).