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作 者:盛春蕾[1] 吕宪国[1] 尹晓敏[1] 闫长平[1]
机构地区:[1]中国科学院湿地生态与环境重点实验室,中国科学院东北地理与农业生态研究所,吉林长春130012
出 处:《湿地科学》2012年第1期92-101,共10页Wetland Science
摘 要:利用Thomson Data Anlyzer(TDA)软件,对科学引文索引扩展版(science citation index expanded,SCIE)文献数据库中收录的1899~2010年间的湿地研究论文进行数据统计和分析,得出作者关键词词频次数在100次以上的关键词,以及高频词出现的年代,并将百年湿地研究划分为5个时间段,分析各个时间段内在研究中出现最多的10个关键词,以及百年湿地研究文献平均年发文量最多的10个关键词及其共词关联度,以期发现国际湿地研究的内容及热点。结果表明,湿地研究涉及多个学科领域;大量研究始于1990年;湿地的水文功能、生物地球化学功能和生物多样性功能等是湿地领域的主要研究内容;建模是其研究的主要方法;美国在该研究领域的研究处于世界领先地位,目前中国已成为继美国之后研究湿地科学的第二大国。This study made an analysis of the literature concentrated on research of wetlands from 1899 to 2010 based on science citation index expanded(SCIE)database using the Thomson Data Analyzer.In order to summarize the main content and hotpots in the area of international wetland research,the keywords of existence frequency more than 100 times were found out,the periods they appeared were analyzed.The five different periods were divided into on wetland research,and 10 keywords attracting the most attentions in each period have been identified.We have also found out 10 key words with the largest annual amount of paper published and the frequency of coexistence among them.The results showed that the wetland research involves a number of disciplines.Extensive research concerned about it started in 1990.Functions of hydrology,biogeochemistry and biological diversity of wetlands are the main research areas of them.Modeling has become the primary method of them.United States of America is occupied the main position in the area of wetland research in the world,and China has become the second largest country of wetland research in the recent years.
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