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| 土壤胶体对砂质土柱中草萘胺迁移的影响 | |
| 引用本文： | 马爱军,何任红,周立祥. 土壤胶体对砂质土柱中草萘胺迁移的影响[J]. 农业环境科学学报, 2009, 28(8) |
| 作者姓名： | 马爱军 何任红 周立祥 |
| 作者单位： | 1. 江苏农林职业技术学院,江苏,句容,212400;南京农业大学资源与环境科学学院,江苏,南京,210095 2. 江苏农林职业技术学院,江苏,句容,212400 3. 南京农业大学资源与环境科学学院,江苏,南京,210095 |
| 基金项目： | 国家自然科学基金，江苏省高校"青蓝工程"资助项目 |
| 摘 要： | 采用室内砂柱模拟试验方法研究了红壤和黑土两种土壤胶体对草萘胺在砂质土柱中迁移的影响.结果表明,整个淋滤过程中红壤和黑土胶体的回收率比较高,分别达到66.76%和74.75%;胶体促进了草萘胺在砂质土柱中的迁移,与对照相比(无胶体),加入红壤和黑土胶体后草萘胺的回收率分别提高了9.82%和10.63%.但是吸附在胶体上迁移的草萘胺数量比较少,只占到迁移总量的1.15%(红壤)和1.68%(黑土),物理非平衡机制可能在迁移过程中起支配作用. |
| 关 键 词： | 草萘胺 土壤胶体 迁移 |
Effects of Soil Colloids on the Transport of Napropamide Through Saturated Sandy Soils |
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| MA Ai-jun,HE Ren-hong,ZHOU Li-xiang. Effects of Soil Colloids on the Transport of Napropamide Through Saturated Sandy Soils[J]. Journal of Agro-Environment Science( J. Agro-Environ. Sci.), 2009, 28(8) | |
| Authors: | MA Ai-jun HE Ren-hong ZHOU Li-xiang |
| Affiliation: | 1.Jiangsu Polytechnic College of Agriculture and Forestry;Jurong 212400;China;2.College of Resources and Environmental Science;Nanjing Agricultural University;Nanjing 210095;China |
| Abstract: | Mobile colloids may play an important role in adsorbing and enhancing the transport of a variety of contaminants in soil and ground water.The mobility of soil colloids and their influences on napropamide transport in aquifers was evaluated in disturbed sandy columns.Leaching experiments were conducted under saturated flow conditions and miscible displacement experiments were carried out with napropamide alone and with mixtures of napropamide and soil colloids.Water dispersible colloids were fractionated fro... |
| Keywords: | napropamide soil colloid transport |
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