2009—2018年国内外冰川沉积物研究现状及热点分析

International and Domestic Research Status and Hot Spot Analysis of Glacial Deposits from 2009 to 2018

运用文献计量的各种特征,采用数学与统计学的方法研究冰川沉积物的现状与发展趋势.以Web of Science数据库和中国知网学术期刊网络出版总库作为数据源,对主题词为冰川沉积物的期刊论文进行检索.通过Bibexcel、Ucinet、Netdraw和SPSS软件进行数据处理和分析.研究表明:(1)2009—2018年国外冰川沉积物的发文数量呈上升趋势,国内冰川沉积物的发文量总体较少,波动较大.(2)国内外冰川沉积物研究的热点时间段集中在第四纪;热点地点集中在南极洲、北极和青藏高原;热点的技术方法集中在测年手段.(3)国外冰川沉积物的研究内容可分为4个集群,即不同测年手段对冰川沉积物进行测年和冰期序列的划分,研究冰川及冻土的主要地区,通过技术手段对沉积物进行深入分析探讨古气候古环境的演变特点以及研究冰川沉积物所采用的具体技术与方法;国内冰川沉积物的研究内容可分为3个集群,即第四纪冰川沉积物的测年及冰期序列的建立,高原隆升与气候变化以及古海洋学.

Based on the characteristics of bibliometrics,the present situation and development trend of glacial sediments are studied by means of mathematics and statistics.Using the Web of Science database and the general publishing database of academic journals of CNKI as the data source,the subject word for a journal article on glacial deposits is retrieved.Data processing and analysis were carried out by Bibexcel,Ucinet,Netdraw and SPSS softwares.The research shows that:(1)the number of international releases of glacial deposits from 2009 to 2018 is on the rise.The amount of glacier sediments in China is less and fluctuates greatly.(2)The hotspots time of glacial sediment research at home and abroad are concentrated in Quaternary;the hotspots area are concentrated in Antarctica,the Arctic,and the Tibetan Plateau;the technical methods of hotspots are concentrated on dating methods.(3)International glacial deposits can be divided into four clusters:using different dating methods to measure glacial sediments separation of glacial and glacial sequences,study of major areas of glaciers and frozen soils,and in-depth analysis of sediments through technical means to explore the evolution characteristics of paleoclimatic paleoenvironment and the specific techniques and methods used to study glacial sediments.The research contents of glacial deposits in China can be divided into three clusters:the dating of Quaternary glacial sediments and the establishment of glacial sequence,plateau uplift and climate change and paleoceanography.