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建立了一个基于三种农药在土壤中根区和中间渗流区迁移能力的模型,并采用不同类型土壤分布区域的土壤理化性质、区域气候与水文特征以及农药理化性质等参数,进行了农药对区域地下水潜在污染能力的评价。结果表明多效唑较易污染地下水,杀虫双次之,而氟乐灵极不易。红壤分布区域的地下水特别容易受到农药的污染。在种植水稻的情况下,农药对地下水污染的潜在威胁增大。
A model was established based on the migration ability of three kinds of pesticides in the root zone and the middle seepage zone in soil. The soil physical and chemical properties, regional climatic and hydrological characteristics and physicochemical properties of different types of soil were used to analyze the effects of pesticides on regional groundwater Evaluation of Potential Pollution. The results show that paclobutrazol more easily contaminated groundwater, insecticide double, and trifluralin is extremely difficult. Groundwater in red soil areas is particularly vulnerable to pesticide contamination. In the case of growing rice, potential threats to pesticide contamination of groundwater are increasing.