从二维视角对比金砖四国科研产出规模以及国际影响力

以ESI数据库为数据来源，采集金砖四国2004-01-01至2014-06-30发表的论文数据，采用科研论文相对产出、相对引文影响指标分析金砖四国科研论文的产出规模及其影响；并采用学科专业化指标和标准引文影响指标，构建“学科专业化-标准引文影响”二维分析框架，分析金砖四国科研产出在全球的相对位置。研究结果表明，金砖四国科研论文绝对产出较多；金砖四国的相对科研产出在学科之间的分布呈现非均衡态势，在很多学科领域相对产出明显低于世界平均水平；金砖四国22个学科的相对引文影响指标均低于世界平均水平；根据专业化指标值，中国、巴西、印度的学科专业化程度低，俄罗斯的学科专业化程度略高；金砖四国的标准引文影响指标值均明显低于世界平均水平，说明科研论文整体质量低于世界平均水平。据此对金砖四国基础研究建设提出建议，以期为有关部门制定科技发展政策、调整学科结构布局提供参考。

Scientific research output in BRICs and its international impact

The output of ESI-covered scientific papers in BRICs from 2014-01-01 to 2014-06-30 and its impact were analyzed according to the relative publication index (RPI) and relative citation impact (RCI), and the world relative position of scientific research output in BRICs was analyzed by constructing a two-dimensional analysis framework according to the subject specialization index and standard citation impact index, which showed that the absolute output of scientific papers in BRICs was rather high, the distribution of relative scientific research output was not proportional between different subjects, the relative scientific research output in many subjects was significantly lower than that in the world, the RCI index of 22 subjects in BRICs was lower than that in the world. The specialization degree of subjects was lower in China, Brazil and India than in Russia, the standard RCI index in BRICs was significantly lower than that in the world, indicating that the academic level of scientific papers in BRICs was lower than that in the world. Certain suggestions were put forward for working out the scientific development policies and adjusting the subject structure in China.