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 |
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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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