苗庆选 刘春晓 怀婷婷 王倩 马海林 井大炜 王志磊 司东霞

摘要 为国内核桃科研工作者与决策者全面了解我国核桃研究的现状、方向及热点提供参考。以中国期刊全文数据库为统计分析源，采用文献计量学相关统计方法对我国1998—2018年核桃研究相关期刊论文的文献发表量、交叉学科领域、农业科学领域的载文期刊及核桃研究文献的分类情况进行引证论述。结果表明，全学科和农业科学核桃研究文献量均呈现先升高后下降的变化趋势，2014年达最大值，之后降低，全学科核桃研究文献量与核桃仁出口单价显著相关。核桃研究文献量占比处于前3位的学科领域依次为农业科学、经济与管理科学和工程科技一辑，其中农业科学文献占总文献的比例为64.75%，居首位。农业科学领域核桃研究文献载文总量大于150篇的11种期刊中，北大中文核心期刊仅2种，载文期刊整体质量不高。1998—2018年，管理技术和生理特性一直是在农业科学领域中核桃科学的研究热点，遗传类相关研究在2008年后成为人们关注的重点。

关键词 核桃，文献计量研究，中国期刊全文数据库，定量分析

中图分类号 S-058文献标识码 A文章编号 0517-6611（2020）06-0223-04

Abstract To provide a comprehensive reference about the status quo， direction and hotspots of walnut research for the domestic walnut researchers and policy makers in China， using the statistical method of bibliometrics， the documents quantity and interdisciplinary field related to walnut research and published journals， classification of walnut research literature in agricultural science based on CNKI database from 1998 to 2018 were analyzed in this study. The results showed that the documents quantity of walnut research both in fulldisciplinary and agricultural sciences showed a trend of increasing first and then decreasing， reaching a maximum in 2014 and then decreasing. The fulldisciplinary documents quantity on walnut was significantly correlated with the export unit price of walnut kernel. The research fields of walnut research in the top three were in the agricultural science， economics and management science， and engineering technology science I. Among them， the agricultural science documents accounted for 64.75% of the total， ranking first. Among the 11 journals with a total of greater than 150 articles in the field of agricultural science， there were only two journals in Chinese core journals of Peking University. The overall quality of the journals was not high. During 1998-2018， management techniques and physiological characteristics on walnut had always been hotspots in the field of agricultural science. Genetic research on walnut had become the focus of attention after 2008.

Key words Walnut，Bibliometric research，CNKI，Quantitative analysis

核桃（Juglans regia L.）又名胡桃，屬于胡桃科胡桃属植物，不仅是重要的经济林树种之一[1-2]，也是重要的木本油料和坚果树种[3]，是一种营养和经济价值都很高的珍贵果木[4]。核桃作为世界范围内的重要果树，栽培面积和产量在各类干果中居于首位[5]。中国核桃资源十分丰富，大多数省份均有分布，但以云南、山西、四川、河北、新疆、陕西等省居多[6]。……