采用室内培养方法，研究了阿特拉津胁迫对土壤中过氧化氢酶的活性的影响。结果发现：在培养期间，阿特拉津对土壤过氧化氢酶表现为明显的抑制作用。3种模型拟合阿特拉津浓度与酶活性关系均达到显著相关关系。土壤阿特拉津对过氧化氢酶的生态阈值的平均值为103 mg/kg。%This article adopts indoor culture method to analyze the effects of atrazine stress on catalase activity in soil . The results show that during the culture ,atrazine has a remarkable inhibiting effect on soil catalase .The three model-fittings show the obvious significant correlation between soil catalase activity and atrazine concentration .Soil atrazine's mean ecological threshold to catalase is103 mg/kg .
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