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据估计,目前全世界每年有300-400万篇科技论文问世,而其中约半数以上是在科技期刊上发表的.科技期刊的种数每15年就翻一番.从D.S.普赖斯标绘的期刊增长曲线图可以看出,数百年来,这个增长比率是相对稳定的.这个增长比率意味着期刊每年增长率为5%.1800年以前,全世界仅有90种科技期刊,1900年增至1万种以上.据普赖斯的曲线图预测,到2000年,科技期刊将超过10万种以上.科技期刊是一种重要的文献资源.
It is estimated that there are currently 3 to 4 million scientific papers published each year worldwide, of which more than half are published in scientific and technical journals. The number of scientific and technical journals doubled every 15 years. From DS Price Of the periodical growth curve shows that the growth rate has been relatively stable for centuries, and this growth rate means that the annual growth rate of a journal is 5%. By 1800, there were only 90 science and technology journals in the world, 1900 To more than 10,000 kinds.According to Price Rice’s forecast, the number of sci-tech journals will exceed 100,000 by the year 2000. Sci-tech periodicals are an important source of literature.