基于文献计量学的国内外面源污染研究进展分析

为了全面了解国内外面源污染研究的发展态势，利用文献计量学方法，从文献发表时间、地区分布、学科类型、所属机构等方面，对Web of Science 的Science Citation Index Expanded (SCI-EXPANDED)数据库中历年的面源污染文献进行了分析。结果表明，20世纪90年代后，面源污染文献量激增；面源污染是一个多学科交叉的领域；美国是面源污染文献高产出高被引国家，美国环境保护局发表文献的平均被引频次最高，为32.81次/篇；中国科学院是发文量最大的研究机构，但是文献的引用率较低。同时，利用Endnote进行的关键词分析表明，中国和美国的面源污染研究主题大多一致，但中国研究需要在地理信息系统(GIS)应用和最佳管理措施(BMPs)方面给予更多的关注。

Non-point Source Pollution Research in China and Aboard Based on Bibliometrics

In order to get comprehensive understanding of the non-point source pollution research in China and aboard, using bibliometrics method, the characteristics including temporal distribution, regional distribution, subject distribution, subordinate organization distribution, and key words distribution of the literatures from science Citation Index Expanded were analyzed. The results showed that: the amount of the literatures on non-point source pollution increased dramatically since 1990s; non-point source pollution research was an interdisciplinary field; the United States was the country whose literatures were published and cited most, and the average citation rate of the literature published by USEPA was the highest, about 32.81 times/article; the Chinese academy of sciences published literatures most, but the literature citation rate was relatively low. The key words analysis by Endnote indicated that both China and the United States had same research topics on non-point source pollution, but China should give more attention to GIS and BMPs in the future research.