文献计量分析南海及其U形海疆线的遥感研究热点

为综合评估遥感技术在南海、尤其在南海U形海疆国界线(简称南海U形海疆线)研究中的应用情况, 本文以中国知识基础设施工程(China National Knowledge Infrastructure, CNKI)和Web of Science核心合集 (Web of Science Core Collection, WOSCC)分别作为中文与外文期刊论文数据库来源, 筛选出截至2019年已发表的相关主题的中外期刊文献, 进行文献计量分析。按照关键词筛选的三类论文为: 南海自然科学研究(中文10150篇, 外文10130篇), 南海遥感研究(中文560篇, 外文1296篇)与南海U形海疆线相关研究(中文303篇, 外文33篇)。文献计量分析表明: 南海自然科学研究总发文量最大的国家为中国(18253篇), 总发文量排名前列的研究机构(如排名第一的中国科学院南海海洋研究所)与期刊(如排名第一的《热带海洋学报》)也主要来自中国; 年发文量变化趋势显示, 南海自然科学研究呈现四个阶段(缓慢起步、缓慢增长、快速增长和回降), 南海遥感研究有两个阶段(缓慢起步与快速增长), 南海U形海疆线研究中文论文呈现三个阶段(缓慢起步、快速增长与回降); 热点研究显示, 南海自然科学研究围绕季风、天然气水合物与台风开展, 南海遥感研究关注海表温度、叶绿素与台风, 南海U形海疆线研究关注南海争端和地质特征。遥感数据于1974年开始被用于南海台风研究, 2019年被用于南海U形海疆线的生态环境研究。发展海洋遥感技术, 深化南海台风“风泵”生态效应与灾害研究, 拓展南海U形海疆线走廊立体的综合科学研究和增强南海的自然科学与社会科学的交叉研究, 意义重大。

A bibliometric analysis of remote sensing research hotspots on the South China Sea and its U-boundary

We use bibliometrics to analyze journal articles with related themes published in and before 2019, to comprehensively evaluate ocean remote sensing applications in the South China Sea (SCS), especially in terms of its U-boundary. We employed CNKI (China National Knowledge Infrastructure) and WOSCC (Web of Science Core Collection) as the representatives of journal article databases in Chinese and in foreign languages, respectively. The classifying selection results are as follows: 10150 articles in Chinese and 10130 in foreign languages were published on natural sciences of SCS, 560 in Chinese and 1296 in foreign languages on remote sensing of SCS, and 303 in Chinese and 33 in foreign languages on the U-boundary of SCS. The bibliometric analysis shows that the country with the most articles in all kinds of languages was China (18253), where the top publishing institutions (such as No. 1 South China Sea Institute of Oceanology, Chinese Academy of Sciences) and the journals (such as No. 1 Journal of Tropical Oceanography) were primarily from. The annual article qualities on SCS natural sciences experienced four stages (slow start, slow growth, fast growth, and fallback), those on SCS remote sensing experienced two stages (slow start and fast growth), while those on the U-boundary experienced three stages (slow start, fast growth and fallback). The research hotspots of SCS natural sciences were monsoon, gas hydrate and typhoon, while the research hotspots of SCS remote sensing were sea surface temperature, chlorophyll and typhoon, and those of the U-boundary were SCS disputes and geologic features. Our study finds that it was in 1974 that remote sensing data were first applied to the research of SCS typhoons, and it was in 2019 that remote sensing data were first used on ecological environment research of the U-boundary. It is of great significance to develop comprehensive scientific research on the U-boundary corridor in SCS by developing remote sensing technology.