文献类型：期刊文献

中文题名：4种干旱指标在贵州省适用性的比较研究

英文题名：Comparative Study on Applicability of Four Drought Indexes in Guizhou Province

作者：韩会庆 白玉梅 张英佳 陈梦玲

第一作者：韩会庆

机构：[1]贵州理工学院建筑与城市规划学院

第一机构：贵州理工学院建筑与城市规划学院

年份：2019

卷号：39

期号：4

起止页码：45-49

中文期刊名：黔南民族师范学院学报

外文期刊名：Journal of Qiannan Normal University for Nationalities

收录：国家哲学社会科学学术期刊数据库

基金：贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]217);贵州理工学院学术新苗培养及探索创新项目(黔科合平台人才[2017]5789-23);贵州理工学院高层次人才启动项目“气候变化对贵州淡水生态系统服务的影响”阶段性成果

语种：中文

中文关键词：干旱指标;适用性;比较;贵州省

外文关键词：drought index;applicability;comparison;Guizhou province

摘要：基于1980—2013年贵州省气象站点逐日和逐月观测资料,利用标准化降水指数(SPI)、降水距平百分率(Pa)、相对湿润指数(MI)、K值(K)4种方法评估贵州省干旱状况,进而比较4种方法的适用性。结果表明:42a来SPI、Pa、MI指标的监测结果与春旱实际发生频次相似,而SPI、Pa指标的监测结果与夏旱实际发生频次接近。SPI和MI指标适用于全省春季和冬季干旱监测,Pa指标适用于夏季干旱监测,SPI和Pa指标适用于秋季干旱监测。干旱初期SPI、Pa、MI指标的区域干旱监测效果较好,干旱中期SPI、MI指标的区域干旱监测具有优势,干旱末期的区域监测可以考虑使用SPI、Pa指标。
This paper evaluated the drought by the method of standardized precipitation index (SPI),precipitation anomaly percentage (Pa),relative humidity index (MI),K value (K) based on daily and monthly observation data in Guizhou province from 1980 to 2013,and then compared the applicability of those four methods.Results showed that the monitoring results of SPI,Pa and MI are similar to actual occurrence frequency of spring drought while monitoring results of SPI and Pa are close to the actual occurrence frequency of summer drought.SPI and MI indexes are applicable to drought monitoring in spring and winter.Pa index is applicable to drought monitoring in summer,SPI and Pa indexes are applicable to drought monitoring in autumn.There is good effect for regional drought monitoring of SPI,Pa and MI indexes in early drought stage.There is advantage for regional drought monitoring of SPI and MI indexes in middle drought stage.SPI and Pa indexes could be used in regional drought monitoring in late stage.