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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。
Using Thomson Data Anlyzer (TDA) software, data statistics and analysis of the wetland research papers from 1899 to 2010 included in the science citation index expanded (SCIE) More than 100 keywords and the era of high-frequency words appearing, and divided the centuries-old wetland research into five time periods, analyzed the ten key words that appeared most in the research in each time period, The most ten key words and their co-word relevance, with a view to discover the content and hot spots of international wetland research. The results show that wetland research involves many disciplines; a large number of studies began in 1990; the wetland hydrological, biogeochemical and biodiversity functions are the main research topics in the wetland field; modeling is the main method of research; The United States has a leading position in the research field in the research field. At present, China has become the second largest country to study wetland science after the United States.