| 摘要: |
| 本文研究了在室温和土壤水饱和条件下,涕灭威在不同类型土壤中的渗淋和上行迁移作用。由于涕灭威及其代谢物在水中的溶解度较高,土壤有机物对其吸附性较小,涕灭威较易于随土壤重力水渗淋,但在不同类型土壤中渗淋速度是不一样的。在涕灭威的上行迁移试验中,当水份尚未饱和时,土壤毛细管作用是主要因素;土壤水份饱和后,药剂的移动速度急剧下降,上行迁移速率将主要取决于水分蒸发等环境条件。研究证明,涕灭威具有污染地下水的可能性。 |
| 关键词: 迁移作用 检出量 土壤水份 上行 涕灭威 不同类型 有机质含量 淋洗液 代谢物 土壤重力水 |
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| MOVEMENT OF ALDICARB IN DIFFERENT TYPES OF SOIL |
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| Abstract: |
| The leaching and upward movement of Aldicarb in different types of soil was simulated under flooding and room temperature conditions. Due to high solubility of Aldicarb,the adsorption of soil is not very strong,but the leaching velocity of Aldicarb in different types of soil is quiet different.The upward movement of Aldicarb with the capillary action was very fast,but its speed decreased drastically when the soil was saturated with water.The results showed the possiblity of Aldi- carb to pollute groundwater... |
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