...
首页> 外文期刊>SIAM journal on applied dynamical systems >Natural and anthropogenic sources of atmospheric dust at a remote forest area in Guizhou karst region, southwest China
【24h】

Natural and anthropogenic sources of atmospheric dust at a remote forest area in Guizhou karst region, southwest China

机译:中国西南部贵州喀斯特地区远程森林区的天然和人为尘埃源。

获取原文
获取原文并翻译 | 示例
           

摘要

The abundance and distribution patterns of Rare Earth Elements (REE) in atmospheric dust in a typical karst forest area of the Maolan National Nature Reserve Park in Southwest China were determined during the period from May 2009 to January 2011. Total REE concentrations (Sigma REE) recorded moderate seasonal variation, ranging from 31.0 mg kg(-1) to 88.2 mg kg(-1), with an average of 53.5 mg kg(-1), similar to the SREE of local topsoil. The values of SREE were negatively correlated with the corresponding dust deposition fluxes, which may be due to different rates of deposition as a function of particulate size. PAAS-normalized REE patterns of the dust showed slightly positive Ce anomalies and enrichment in light REE. Most dust samples had similar PAAS-normalized REE patterns to local topsoil, whereas others were similar to the anthropogenic input material from urban areas.
机译:在2009年5月至2011年1月,在中国西南部茂尔兰国家自然保护区典型喀斯特林区典型喀斯特林区大气尘埃(REE)的丰富和分布模式在2009年5月至2011年1月。总重量浓度(Sigma Ree) 记录适度的季节性变化,从31.0mg kg(-1)至88.2mg kg(-1),平均为53.5 mg kg(-1),类似于当地表土的啜饮。 Sree的值与相应的粉尘沉积通量负相关,这可能是由于颗粒尺寸的函数的不同沉积速率。 PaaS-归一化的粉尘的REE模式显示出略微阳性的CE异常和轻质ree的浓缩。 大多数粉尘样品对当地表土具有类似的PaaS归一化的REE模式,而其他粉尘样本与来自城市地区的人为投入材料类似。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号