| 赵纪涛,陈志彪,陈志强,姜超,区晓琳,任天婧,方芸芸.不同侵蚀强度下崩岗表层土壤稀土元素分布特征及影响因素[J].海南师范大学学报自科版,2016,29(1):65-69 |
| 不同侵蚀强度下崩岗表层土壤稀土元素分布特征及影响因素 |
| Distribution Characteristics and Influential Factors of REE in the Surface Soil of the Different Erosion Intensities of Benggang |
| 投稿时间：2015-11-27 修订日期：2016-03-01 |
| DOI：10.12051/hainansfxyxb.2016.01.015 |
| 中文关键词: 崩岗 侵蚀强度 稀土元素 含量与分布 |
| 英文关键词: benggang erosion intensity rare earth element（REE） content and distribution |
| 基金项目:国家科技支撑计划（2013BAC08B03）；国家自然科学基金（41371512） |
|
| 摘要点击次数: 934 |
| 全文下载次数: 0 |
| 中文摘要: |
| 崩岗是我国南方亚热带地区分布最为严重的土壤侵蚀类型，其发育的速度和强度对地表产生巨大破坏作用，同时对土壤中稀土元素的含量和分布产生重要影响. 文章通过野外取样调查和室内ICP-MS 测定，对福建省长汀县濯田镇黄泥坑崩岗群内3 个不同侵蚀崩岗各部位表层土壤（0～10cm）进行取样研究. 结果表明稀土元素总量变化依次为轻度侵蚀区＞中度侵蚀区＞强度侵蚀区，且轻稀土元素含量富集；不同侵蚀程度的崩岗的稀土元素含量变化基本呈现沿集水区到沟道逐步增加的趋势；其中，元素Ce 元素含量极高，Eu 元素含量低，有明显的亏损现象；植被覆盖条件好的区域表层土壤中稀土元素含量高 |
| 英文摘要: |
| Benggang（collapsed hill）is the most serious type of soil erosion in subtropical zone of south China. The speed and intensity of its development have a great impact on the surface of the earth, and it has an important influence on the content and distribution of the Rare Earth Element（REE）in soil. Via field sampling and laboratory test by ICP-MS determination, collapse erosion of three different groups in different parts topsoil（0-10cm）were sampled within the Huangnikeng, Zhuotian town Changting county Fujian province. The results show that contents of REE were slight erosion zone > moderate erosion zone> intensity erosion zone, and Light Rare Earth Element（LREE）is rich; REE content in different conditions basically show gradual increasing trend of erosion along the catchment to the channel; Ce element is rich in content and Eu element is low in content; REE content is rich in surface soil of vegetation coverage area |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
