中文摘要：

外来生物入侵引发了严重的生态环境安全问题，对其开展风险评估已经成为一个现实、紧要的研究课题。为了把握该领域的研究动态，在WebofScience引文数据库中，以生物入侵风险评估作为主题词，检索2003—2012年间收录的相关文献，并用HistCite软件进行引文计量研究。统计发现，美国、澳大利亚两国的发文量超过了检索文献的一半，发文量排名前20的机构共发表文章521篇，占总发文量的34．4％；并分析得到该领域的核心期刊和影响力较大的作者。根据本地引用次数的排序，绘制了知识图谱，并总结出4个主要研究热点：WRA系统适用性及改进研究、其他风险评估方法研究、生物生态学效应在生物入侵风险评估中的应用研究、各类模型在生态风险评估中的应用研究。

英文摘要：

Biological invasion has led to serious ecological environment crisis. Risk assessment of biological invasion has become a reality, critical research. To better understand the trend in biological invasion research, a bibliometric analysis on risk assessment of biological invasion literatures indexed by the Web of Science during 2003--2012 was carried out using HistCite software. Results indicated that, among all nations, the United States and Australia issued more than half of all related publications. The top 20 institutions published 521 articles, contributing 34.4% to the total literature, and then we got the core journals and influential authors. According to the number of local citation scores, this paper draw knowledge map, summarized and got four major research hotspots： WRA system suitability and improvement research, other risk assessment methods research, biological and ecological effects in biological invasions risk assessment, models used in ecological risk assessment research.