| 土壤中铝的溶出及形态研究 |
| |
| 引用本文： | 黄衍初,曲长菱. 土壤中铝的溶出及形态研究[J]. 环境科学, 1996, 17(1): 57-59 |
| |
| 作者姓名： | 黄衍初 曲长菱 |
| |
| 作者单位： | 中国科学院生态环境研究中心 |
| |
| 摘 要： | 用连续提取法研究１ｍｏｌ／ＬＫｃｌ，１ｍｏｌ／ＬＮＨ４Ａｃ，１ｍｏｌ／ＬＨｃｌ和０．５ｍｏｌ／ＬＮａＯＨ４种化学浸提液对土壤中铝的溶出，溶出名中用羊毛羊花菁Ｒ比色法测定。结果表明，铝的溶出量与与土壤类型、总铝、有机质含量等因素有关。１ｍｏｌ／ＬＫｃｌ浸提液对酸性土能溶出一定量的变换态铝，而对非酸性土则不能溶出或铝溶出量极微。０．５ｍｏｌ／ＬＮａＯＨ浸提出的铝量与总铝量之间有显著相关性。
|
| 关 键 词： | 土壤 铝 溶出 化学形态 连续提取法 |
| 收稿时间： | 1995-05-30 |
Studies on the Leaching and Species of Aluminum in Soil |
| |
| Huang Yanchu and Qu Changling. Studies on the Leaching and Species of Aluminum in Soil[J]. Chinese Journal of Environmental Science, 1996, 17(1): 57-59 |
| |
| Authors: | Huang Yanchu and Qu Changling |
| |
| Affiliation: | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
| |
| Abstract: | The leaching and chemical forms of aluminum in soil by sequential fraction procedure were studied.Solutions used sequentially to extract Al are inorder of 1 mol/L KCl,1 mol/L NH4Ac,1 mol/L HCl and 0.5 mol/L NaOH.The spectrophotometric determination of leaching Al was performed with Eriochrom Cyamine RC.It has been found that the type of soil and the amounts of organic materials and total Al in soil have a siginificant effect on the amount of leaching Al.A certain amount of exchangeable Al can be leached from acid soil with 1 mol/L KCl extractant,however,it can not be leached from alkaline soil.The leaching Al extracted with 0.5 mol/L NaOH is correlated at a high level of significance with the total Al in soil. |
| |
| Keywords: | soil leaching aluminum chemical form. |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
|
点击此处可从《环境科学》下载全文 |
