过去十五年古环境研究发展趋势的半定量分析  

SEMI-QUANTITATIVE ANALYSIS ON THE DEVELOPING TREND OF PALEOENVIRONMENTAL CHANGE STUDIES IN THE PAST 15 YEARS

作　　者：张勇[1] 李力[1] 宋友桂[1] 

机构地区：[1]中国科学院地球环境研究所,西安710075

出　　处：《海洋地质与第四纪地质》2005年第4期121-124,共4页Marine Geology & Quaternary Geology

基　　金：国家自然科学基金项目(40202019;90102017;40121303);国家重点基础研究发展规划项目(2004CB720200)

摘　　要：利用一个结合古环境研究专业知识设计的检索词体系对GEOBASE数据库进行检索,采用半定量化的方法对检索得到的数据进行处理,为判断学科发展热点和重要研究方向提供一种思路。Based on professional paleo-environmental knowledge, a retrieval terms system was built. The retrieval terms system includes more than 150 terms related to the following paleo-environmental aspects： areas or regions for study, historical and geological periods or stages, methods or means for study, and objects for study. With the retrieval terms system, the GEOBASE abstract database was searched. 15 years of annual amounts of published papers related to the terms were got. The data were processed with a semiquantitative method. Analysis rooted in the processed result offered a possible way to estimate the popular issues and foresee the developing trend of the subject.

关 键 词：古环境研究 GEOBASE数据库 发展趋势 检索 统计分析 

分 类 号：G358[文化科学—情报学]