文章摘要
李云霞.农业资源环境类核心期刊引文量的年度分布特征.编辑学报,2008,20(2):177-178
农业资源环境类核心期刊引文量的年度分布特征
Distribution characteristic analysis of references for core journals of agricultural resources and environment
投稿时间:2007-07-22  修订日期:2007-07-22
DOI:
中文关键词: 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
英文关键词: core journal of agricultural resources and environment  journal literature  book literature  variation coefficient  yearly distribution of references
基金项目:
作者单位
李云霞 中国农业科学院农业信息研究所,100081,北京 
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中文摘要:
      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。
英文摘要:
      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.
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