基于CiteSpace的热浪研究知识图谱分析

doi:10.12006/j.issn.1673-1719.2019.159

摘要/Abstract

摘要：

近年来,全球热浪事件频发,对环境、生态系统以及人体健康造成了重大影响。对热浪研究发展历程和研究热点与前沿进行梳理有助于为研究学者提供一些有益的启示。文中以热浪为主题词,从Web of Science核心数据库中检索出1975—2019年文献2237篇,运用CiteSpace知识图谱分析工具,对热浪的研究进展及演变趋势进行了图谱解读和分析。结果表明:(1)国外对于热浪的研究起步较早,在该领域拥有较多的高影响力学者以及科研机构,如美国国家大气研究中心;中国在热浪领域起步较晚,但是发展速度很快,代表机构为中国科学院。(2)热浪研究涉及的学科广泛,如气象与大气科学、环境科学、环境科学与生态学等,其中与环境相关的学科占主要。(3)热浪研究热点可概括为4个方向,包括热浪对健康的影响、热浪热点事件、热浪的影响因素以及热浪研究方法。(4)热浪的研究发展过程可分为3个阶段:起始阶段,研究重点在极端气候现象导致的热浪和热浪的时间变化特征领域;发展阶段,研究内容为1995年芝加哥热浪事件与2003年欧洲热浪事件,并关注了热浪与城市热岛的关系及热浪对健康的影响;当前研究阶段,减少城市热浪风险和海洋热浪是热浪研究领域的前沿。

关键词: 科学知识图谱, CiteSpace, 热浪, 可视化分析

张俊华,黄波,刘晓倩,聂敬娣,王娟. 基于CiteSpace的热浪研究知识图谱分析[J]. 气候变化研究进展, 2020, 16(3): 383-389.

图/表 7

图1 1975—2019年热浪研究发文数量时间变化特征

Fig. 1 The number of published papers on heat wave in 1975-2019

表1 1975—2019年热浪研究学科共现特征统计

Table 1 Co-occurrence characteristics and frequency statistics of the research on heat wave from 1975 to 2019

图2 热浪研究文献中出现频次最高的前二十个关键词

Fig. 2 Top 20 keywords based on frequency on the heat wave research

表2 热浪研究出现频次较高关键词归类整理

Table 2 Hotspots of heat wave research

图3 热浪研究文献共被引聚类特征

Fig. 3 A visualization of the document co-citation network based on cluster

表3 各聚类主要研究内容

Table 3 Main research contents of clusters

图4 文献共被引网络时间线视图注:红色代表出现突变信息。

Fig. 4 A timeline visualization for document co-citation network

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