中美土壤重金属污染超富集植物文献计量分析——以印度芥菜为例

Bibliometric Analysis on Hyperaccumulator of Soil Heavy Metal Pollution between USA and China——A Case Study of Brassica juncea L.

为深入了解中国和美国在土壤重金属污染超富集植物方面的研究状况,客观地反映两国在该领域的科学能力和影响力,笔者采用ISI Web of Knowledge的Web of Science引文数据库,选用普通检索方式,以超富集植物印度芥菜作为主题检索词,对1900—2009年之间该库收录的中国和美国科研人员发表的相关文献进行计量分析比较。结果表明:中国和美国在研究人员、研究机构和发文量上相差不是太多,但从高被引论文来看,国际范围内按照被引频次排名前10位的论文中,美国有6篇,且占据前3名,中国无一篇入围。关键词词频分析显示,中美两国研究趋势相似。总体来说,中国学者在印度芥菜方面的研究和美国学者还有一定差距,今后不仅需要提高此领域的研究水平,还要注重提高科技论文的国际影响力。

To better understand the status of soil heavy metal pollution hyperaccumulators between China and USA and to reflect objectively their scientific advances and influences in the field,a bibliometric study on hyperaccumulator Brassica juncea L.literature from China and USA indexed by the Web of Science based on Webof Knowledge during 1900-2009 was carried out using regular search methods.The results indicated that there were not too much difference between China and USA on researchers,research institutions and the amount of literature,but from the highly cited papers,the United States had 6 of top 10 papers on Brassica juncea L.in the world,and top 3 papers were from USA.There was no paper from China in top 10.The keywords frequency analysis showed that 2 countries had similar research trends.In short,there was a certain gap between China and USA on the Indianmustard research,and Chinese scholars should improve not only the level of research in this field,but also the influence of scientific papers in the world.