近20a国际冰川研究热点及趋势分析

Hotspots and trand analysis of international glacier researches in recent 20 years

冰川是地表形态塑造过程中重要的外营力,通过对冰川的研究可以为恢复古环境气候提供依据,还原历史环境演变特征,为今后环境变化的研究奠定基础,因此具有重要的科学意义.以国际较权威的数据库网站WEB OF SCIENCE作为数据源,检索1997—2016年间主题词为"glacier"的期刊论文并导出全部关键词,以中国知网学术期刊网络出版总库(CNKI)为数据源,检索1997—2016年间主题词为"冰川"的期刊论文并导出全部关键词,通过对关键词的对比得出国内外研究重点的差异.将从数据库网站WEB OF SCIENCE中得到的数据通过Bibexcel软件生成关键词的共词矩阵,再根据共词矩阵通过Ucinet和Netdraw软件生成共词网络可视图,使关键词之间的联系更加直观.利用SPSS软件将检索的数据进行共词聚类分析以及多维尺度分析,通过对高频关键词的分类,探讨国际上冰川研究的热点问题以及重点研究方向,客观地评价有关冰川研究的概况,为今后有关冰川的研究提供参考.

The glacier is an important process of the surface shape of the forces, through the study of glaciers can provide the basis for the restoration of the paleoenrironmental climate, restore historical environment evolution characteristics, lay the foundation for the future study of the changes of the environment. Therefore it has important scientific significance. In this paper, the international au- thoritative database website WEB OF SCIENCE and as a data source, retrieval of 1997-2016 years, the subject of the term ＂glacier＂ journal papers, and export all keywords,to Chinese How Net CNKI database （CNKI） as the data source, retrieval during 1997-2016 theme words for ＂glacier＂ journals and export all keywords, by comparing the differences between domestic and international research keywords focus. The data obtained from the database website WEB OF SCIENCE is generated by Bi- bexcel to generate the coin matrix of keywords, and according to which the co-word network map is generated by using Ucinet and Netdraw programs, so that the links between the keywords are more intuitive. The data retrieved by SPSS were used for co-word clustering analysis and multidimensional scale analysis. Through the classification of high frequency keywords to explore the hot research issues and key research directions of glacier internationally. Objective assessment of the overview of glacier research for reference for the research of glacier in future.