【作者】 史建国； 严昌荣； 何文清； 刘克礼；

【Author】 SHI Jian-guo~(1,2)YAN Chang-rong~1 HE Wen-qing~1 LIU Ke-li~2 (1.Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China;2.Inner Mongolia Agricultural University)

【机构】 中国农业科学院农业环境与可持续发展研究所； 内蒙古农业大学；

【摘要】 本文简要回顾了国内外气象干旱指数研究的发展概况,着重对目前有代表性的三种气象干旱指标 Palmer 指数(PDSI)、标准化降水指数(SPI)和改进的干燥度指数(K)的计算方法和原理进行介绍,并对各种指标的特点和适用性进行分析,同时给出了各种指标的可能取值范围,为气象干旱分析研究及应用提供依据。更多还原

【Abstract】 A summary of research and development of meteorological drought index at home and abroad was reviewed briefly in this paper. The calculation methods and principles of the three currently representative drought index of Palmer index ( PDSI),Standardized precipitation index (SPI)and improved aridity index were mainly introduced. Traits and application of the three indexes were analyzed,furthermore,the possible value for each indexes were discussed,which provided reference gist for research and application of meteorological drought.更多还原