关键词: 浮萍；Web of Science；废水；生态环境

Abstract:

In order to investigate the distribution and current status of duckweed study, this paper analyzed the duckweed research literature collected by Science Citation Index expand（SCIE） since 1925 to 2013. The results indicated that there were 1 742 research papers indexed, and the annual quantity of paper issued showed a growing trend. After 1990, the quantity of paper issued and citation frequency was remarkably increased. The United States ranked No.1 in the 3 aspects of paper quantity, citation frequency and H\|index, which embodied that USA took the leading position in duckweed research area. China took No.5 in issued paper quantity. The periodical with the largest quantity of research papers was <Environmental Toxicology and Chemistry>. Duckweed literatures are mainly distributed in Environmental Sciences and Ecology, Plant Sciences, Toxicology. The research hot spots are constructed in the purification effects of duckweed in sanitary sewage and industrial waste water.

Key words: uckweed, Web of Science, waste water, ecological environment