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Study on the Properties of Residue and Run off of Organophosphate Pesticides in Wuchuan Watershed

Abstract

本文通过对五川流域地表径流、浅层地下水、土壤和作物等不同介质中的有机磷农药进行分析,研究有机磷农药在各介质中的残留分布和迁移特征,同时通过降雨和日常采样阐述了该流域有机磷农药地表径流流失问题,并对不同介质中有机磷农药的风险影响进行评价。主要内容如下: 1.系统研究了有机磷农药在地表径流、浅层地下水、土壤和作物等不同介质中的残留分布特征:地表径流中有机磷农药的残留分布因流域内不同作物的用药而变换,即流域上游的坡地果园水果成熟季节和中下游的传统作物收获季节为地表径流残留有机磷农药峰值期;浅层地下水中有机磷农药的残留分布与不同地块的土地利用方式、施药季节紧密相关;柱层土壤中有机磷农药的分布特征与土...Based on organophosphorus pesticides were analyzed in the different media, such as surface runoff, shallow groundwater, soil and crop in Wuchuan Watershed, this dissertation focused on residual distribution and migration characteristics of organophosphorus pesticide in the different media. Through rainfall and daily sampling, the runoff characteristics of organophosphorus pesticides were studied, ...学位:理学硕士院系专业:海洋与环境学院环境科学与工程系_环境科学学号:20023400

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