我国首次大规模使用文献计量学方法确定25种条件对中文期刊进行统计分析,经过严格筛选,有二千余种期刊被列为国家核心期刊。期刊以其出版周期短、方式灵活、内容广泛的特点成为人们传达知识、信息的极好载体,它的出版量随社会的发展而激增。目前全世界公开发行的期刊已达十万余种。期刊的巨大出版量,使图书情报机构构置资金及收藏空间有限 For the first time in China, bibliometrics was used to determine 25 kinds of conditions for statistical analysis of Chinese periodicals. After rigorous screening, more than 2000 kinds of periodicals were listed as national core periodicals. Periodicals, with their short publication period, flexible methods and wide range of contents, have become excellent carriers for people to convey their knowledge and information. Their publication volume has surged with the development of society. At present, there are more than 100,000 titles published in the world. The huge publication of periodicals makes the construction of library and intelligence agencies limited funds and storage space