论文部分内容阅读
在实验室与野外田间状态下,研究了氯唑磷农药在砂土、砂壤土及粘壤土中的降解特性,降解速率依次为:砂壤土>粘壤土> 矿土;其降解半衰期分别为47-2 、59-8 和67-3 d.测定了氯唑磷农药在上述3 种土壤中的淋溶移动性能,其淋溶移动速率次序为砂土> 砂壤土> 粘壤土;试验区地下水中均检测到氯唑磷农药残留,证实氯唑磷农药对地下水有污染影响.
Under laboratory and field conditions, the degradation characteristics of chlorzoton pesticides in sand, sandy loam and clay loam were studied. The degradation rates were as follows: sandy loam> clay loam> mineral soil; the half-lives of degradation were 47- 2, 59-8 and 67-3 d. The leaching kinetics of chlorzoxazone pesticides in the above three soils were determined. The order of leaching kinetics was that of sandy soil> sandy loam> clay loam soil. Chlorzoxazone residues were detected in the groundwater of the experimental area, Phosphorus pesticides contaminated groundwater.