| 稀土元素在黄棕壤中的形态分配和转化 |
| |
| 引用本文： | 翟海,周权锁,杨永岗,胡霭堂.稀土元素在黄棕壤中的形态分配和转化[J].农业环境科学学报,2000,19(1). |
| |
| 作者姓名： | 翟海 周权锁 杨永岗 胡霭堂 |
| |
| 作者单位： | 1. 江苏省镇江市计划委员会
2. 南京农业大学自然资源与环境科学学院,南京,210095 |
| |
| 基金项目： | 国家自然科学基金!资助项目(19392100) |
| |
| 摘 要： | 研究了在小麦土培过程中黄棕壤中内源及外源稀土元素的形态分配特征及其动态变化。结果表明,生物作用使土壤中内源稀土元素由植物难利用形态向易于吸收利用形态转化 ,外源稀土元素在土壤中有不断变固定的趋势。外源稀土元素主要进入了土壤中的有机结合态 ,其分配系数可达80 %以上。外源单一稀土元素La、Ce、Pr、Nd在土壤各形态中的分配存在差异。
|
| 关 键 词： | 土壤 稀土元素 形态分配与转化 |
Distribution and Transformation of Rare Earths in Yellow Brown Earths |
| |
| ZHAI Hai,ZHOU Quan-suo,YANG Yong-gang,HU Ai-tang.Distribution and Transformation of Rare Earths in Yellow Brown Earths[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2000,19(1). |
| |
| Authors: | ZHAI Hai ZHOU Quan-suo YANG Yong-gang HU Ai-tang |
| |
| Abstract: | Wheat soil culture was carried out to study the features of the native and the applied RE fractionation and its transformation in yellow brown earths. The result showed: During the wheat soil culture the native RE availability was increased in yellow-brown earth, on the contrary, a tendency of forward fixation was found in the transformation of the applied RE. The applied RE entered in mainly bound to organic matter form in the soil, and its distribution could be more 80%. The features of the distributions of each element of La, Ce, Pr, Nd were different. |
| |
| Keywords: | Soil rare earths distribution and transformation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《农业环境科学学报》浏览原始摘要信息 |
| 点击此处可从《农业环境科学学报》下载免费的PDF全文 |
|
