摘要
对12种农业资源环境类核心期刊引用期刊文献和图书文献的数量分时段进行统计分析。结果表明:期刊文献引用量高于图书文献;中文文献引用量变异系数小于外文文献;近期文献引用量变异程度高于远期文献。
Distribution characteristics of references for core journals of agricultural resources and environment are analyzed, The results show that the references in journals are more than that in books; the variation coefficient of Chinese language reference amount is less than that of foreign language references ; the variation coefficient of references in recent years is greater than that in bygone years.
出处
《编辑学报》
CSSCI
北大核心
2008年第2期177-178,共2页
Acta Editologica
关键词
农业资源环境类核心期刊
期刊文献
图书文献
变异系数
引文量年度变化
core journal of agricultural resources and environment
journal literature
book literature
variation coefficient
yearly distribution of references
