基于近20 年中文核心期刊文献计量的番茄研究主题与热点分析

我国是番茄生产大国，关于番茄的研究在我国蔬菜科学研究中占有十分重要的地位。以1999—2019 年“中文核心期刊”和“中国科学引文数据库”期刊上刊登的7 190 篇番茄研究文献为材料，使用Java 与python 编程语言实现对文献的计量分析，以期了解进入21 世纪后我国番茄科研的热点和变化趋势，为今后相关科研选题及管理提供参考。研究结果表明：近20 年来番茄研究的发文量，在前10 年间快速增长，随后的10 年间则保持高量稳定状态；文献聚类分析获得13 个研究主题，涵盖了遗传育种、栽培生理与栽培技术、植物保护、贮藏加工等研究领域；通过高频关键词分析发现，“基因”“生长发育”“产量”“品质”和“温室”等的相关研究热度持续不减，“黄化曲叶病毒病”“叶绿素”“幼苗”“樱桃番茄”和“土壤”等相关研究近年来热度明显升高，而“生理”“叶霉病”“贮藏保鲜”“青枯病”和“乙烯”等相关研究文献有所减少。最近10 年每年约有100 种中文核心期刊登番茄研究论文400 多篇。

Bibliometric Analysis of Literature in Chinese Core Journals from 1999 to 2019 with Tomato as Research Topics and Hotspots

China is a big tomato producing country．Research on tomato occupies an important place in vegetable science research in China．Taking 7 190 tomato papers published in the journals of“Core Journals in Chinese” and “Chinese Science Citation Database，CSCD” from 1999 to 2019 and using Java and python programming languages，this paper carried out quantitative analysis on literatures，hoping to understand the hotspots and changing tendency of tomato research in China since entering the 21th century，so as to provide references for future research topic selection and management．Research results showed that in recent 20 years， the quantities of published papers on tomato maintained a large number and kept a stable status for 10 years following the rapid increase in the first 10 years． The literature cluster analysis obtained 13 research topics，covering：genetic breeding，cultivation physiology and technology，plant protection，storage and processing，etc．We found by analyzing high-frequency keywords that the heat of research activities related with“ gene”“growth anddevelopment”“yield”“quality” and“ greenhouse”，etc.，was persistant；and the heat of research related to“tomato yellow leaf curlvirus”“chlorophyll”“seedling”“cherry tomato”“soil”，etc.，was remarkably increasing. While，research literatures related to“ physiology”“leaf mold”“preservation and freshness”“bacteria wilt”“ethylene”，etc.，were decreased. During the recent 10 years，there were about 100 core journals publishing over 400 papers on tomato every year.