| 氮在饱和土壤层中迁移转化特征研究 |
| |
| 引用本文： | 阮晓红,王超,朱亮.氮在饱和土壤层中迁移转化特征研究[J].河海大学学报(自然科学版),1996,24(2):51-55. |
| |
| 作者姓名： | 阮晓红 王超 朱亮 |
| |
| 作者单位： | 河海大学环境工程系 |
| |
| 基金项目： | 河海大学水资源开发利用国家专业实验室开发基金 |
| |
| 摘 要： | 通过室内土柱实验，研究了氮在包气带不同土质层中饱水条件下迁移转化的特征；建立了一维饱和土壤层中氮迁移的预测模型。研究结果表明：氮对地下水的污染因子是硝酸根；土质是影响土壤氮迁移的重要因素之一。在迁移转化环境条件相同的情况下，随着土壤颗粒中粘粒含量的增加，土层的净化容量增加，其中土层的反硝化反应速率的增加是硝酸根去除的决定性因素。
|
| 关 键 词： | 土壤 饱和土壤层 氮 迁移 地下水 污染 |
| 修稿时间： | 2005/1/23 0:00:00 |
Migration and Transformation of Nitrogen in Water Logged Aeration Zone of Soil |
| |
| Ruan Xiaohong,Wang Chao, Zhu Liang.Migration and Transformation of Nitrogen in Water Logged Aeration Zone of Soil[J].Journal of Hohai University (Natural Sciences ),1996,24(2):51-55. |
| |
| Authors: | Ruan Xiaohong Wang Chao Zhu Liang |
| |
| Institution: | Dept. of Environmental Engineering. Hohai Univ. Nanjing 210098 |
| |
| Abstract: | Characteristics of nitrogenous migration and transformation in different types ofsoils of water logged aeration zone have been studied through laboratory soil-columnexperiments. A mathematic model of nitrogenous migration and transformation in waterlogged aeration zone of soil has been made. The results show that the main contaminant ofnitrogen in groundwater is the nitrate. and the composition of soil is an important factorwhich influences migration and iran formation of nitrogen. Under the same migration andtransformation condition. the purification capacity of soil is increased with the content ofclay in the soil. The increase of the nitrification reaction rate is a decisive factor. |
| |
| Keywords: | nitrogen migration and transformation groundwater contaminant |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《河海大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《河海大学学报(自然科学版)》下载免费的PDF全文 |
