Effect of rare earths on fractionation and transformation of soil available nitrogen
文献类型：SCI/SSCI论文
| 作者 | Liang T. |
| 发表日期 | 2003 |
| 关键词 | pedology nitrogen transformation yellow cinnamon soil rare earths lanthanum |
| 英文摘要 | The effect of rare earths (RE) on fractionation and transformation of available nitrogen (N) in a yellow cinnamon soil was studied with soil cultivation. The results show that under the dry condition, when the extraneous RE are added to the soil, both concentrations of soil ammonium N and hydrolysable N increase, and the concentrations of soil nitric N decrease. The concentrations of soil available N increase with the increase of RE concentrations in soils when the RE concentrations are low, but it decreases with the increase of high RE concentrations in soils. The NOEC (no observed effect concentration) of the extraneous RE to available N In the soils is 443.8 mg(.)kg(-1). Under the inundated condition, low RE concentrations in soil has no significant effect on soil ammonium N and hydrolysable N. However, when the soil RE concentrations are high, both of them decrease with the increase of RE concentrations. The NOEC of the extraneous RE to soil ammonium N and hydrolysable N are 171.2 and 256.9 mg(.)kg(-1), respectively. |
| 出处 | Journal of Rare Earths |
| 卷 | 21 |
| 期 | 5 |
| 页 | 582-586 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1002-0721 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24127]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Liang T.. Effect of rare earths on fractionation and transformation of soil available nitrogen. 2003. |
入库方式： OAI收割
来源：地理科学与资源研究所
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