一、核心期刊研制的必要性当前,我国的科学文化事业已进入了一个新的发展时期,与之相关的图书期刊出版量及进口量也随之增加,尤其是各类科技期刊的增长更为迅速。70年代中后期全国公开发行的科技期刊900余种,现已增加到6000余种,水产、渔业类的期刊也由1985年的60余种增加到1990年的122种;国外引进的期刊现有30000余种。文献情报量的高速增长, I. The Necessity of Developing Core Periodicals At present, China’s science and cultural undertakings have entered a new period of development. Relevant books and periodicals have also seen an increase in the number of publications and imports, especially in various types of science and technology journals rapid. In the late 1970s, more than 900 kinds of periodicals were published in the country, which has now risen to more than 6,000. The number of periodicals in fisheries and fisheries also increased from 60 in 1985 to 122 in 1990; More than 30,000 species. The rapid growth of literature and information,