基于文献计量的植物雌雄异株研究进展

雌雄异株植物是研究植物性别的理想材料,同时作为生态系统的重要组成部分,对生物多样性的维持与保护起着重要作用。该文从文献计量学角度综述了雌雄异株植物相关研究的进展。通过检索Web of Science(WOS)平台的SCI-E数据库和CNKI数据库的有关雌雄异株研究的文献数据,从文献年代分布、期刊分布、研究国家与机构、核心作者和高引论文等方面进行了分析,并借助CitespaceⅢ信息可视化软件绘制雌雄异株植物研究的科学知识图谱,总结了雌雄异株研究的热点和前沿。结果表明:WOS数据库中,雌雄异株植物研究呈现快速上升趋势,就发文总量来看,发文前五的国家为美国、日本、加拿大、英格兰和中国。其中,美国发文量占比为31.03%;中国科学院为发文量最多的机构,发文占比3.36%,其次为牛津大学(2.613%),多伦多大学位列第三(2.427%);中国,巴西和印度三国,西班牙马萨里克大学和北京林业大学两个研究机构近5年来在该领域发文增量较快。论文主要集中在植物科学、环境科学与生态学和遗传学等学科。载文量前十位的期刊累计载文占比高达24.13%,发文量最多的期刊为American Journal of Botany,占总发文量的6.07%,其次为Evolution(2.80%),Annals of Botany(2.52%)排名第三。发文最多的作者为捷克科学院的VYSKOT B,发文占总数的2.57%,高引论文大多出自美国学者之手。从CNKI数据库看,西华师范大学、北京林业大学和河南师范大学发文数量位列前三,发文量最高的期刊为《生命世界》,占总发文量的3.00%。综合Web of Science和CNKI两大数据库的文献来看,青杨和番木瓜作为研究雌雄异株植物的模式植物,近年发文较多。当前的研究热点主要集中在雌雄性别决定,繁殖代价,雌雄个体对环境因子的响应差异等方面。

Bibliometric analysis of research on diecious plant

Diecious plants provide ideal materials to study sex determination of plant.Meanwhile, as a component of ecosystem, diecious plants play a very important role in maintenance and conservation of biodiversity.Bibliometric analysis is a useful method for characterizing scientific research in various fields, which can be used for making decisions regarding scientific development.In the present paper, research progress related to diecious plant was evaluated based on bibliometric analysis by retrieving articles from Science Citation Index Expanded (SCI-E) via Web of Science and CNKI databases.Yearly distribution, journals, countries/institutions, core authors and highly cited published articles were analyzed.Furthermore, research hotspots and frontiers were summarized on knowledge domain generated by Citespace Ⅲ information visualization software.The results showed that in Web of Science, publication output exhibited a rapid growth by year, especially in recent years.The top five most productive countries were USA, Japan, Canada, England and China, among which, USA exceeded all world regions in research production for the period studied (31.03% of total articles), Chinese academy of sciences is the predominant institute which contributed 3.36% of total publications in this field, followed by University of Oxford (2.613%), and University of Toronto (2.427%) ranked the third.China, Brazil and India were the most active countries, while Beijing Forestry University and Masaryk University (Spain) were the most active institutes in the recent five years.According to the classification of journals in Web of Science, the top three subjects with the most articles published related to diecious plant were plant sciences, environmental Sciences & Ecology and Genetics & Heredity.The top 10 journals contributed 24.13% of total articles, in which American Journal of Botany was the predominant journal that published 6.07% of total articles, with Evolution ranking second (2.80%) and followed by Annals of Botany (2.52%).VYSKOT B (from Academy of Sciences of the Czech Republic) was the leading author who contributed 2.57% of total articles, however, the most high cited articles were published by authors from USA.In CNKI, the top three core institutions were China west Normal University, Beijing Forestry University and Henan Normal University, and the first top productive journal was Life Word (3.00%).Based on the results from Web of Science and CNKI databases, publications on Populus-cathayana and Papaya had a higher volume in recent years.Researches on mechanism of sex determination, cost of reproduction, gender-specific response to environmental factors are the mainly research topics.