摘要
基于1961～2010年黔东南州16个站逐日降水资料，从1、2和3 d洪涝指标体系出发，分析了黔东南州洪涝的发生、变化和分布规律，结果表明，50年间黔东南州共有46年发生过洪涝，平均每年7．66站次，多洪涝年集中在20世纪90年代以后，洪涝4月开始，10月结束，主要发生在5～9月；黔东南州从西南向东北洪涝逐渐减弱，麻江、丹寨和雷山西部为洪涝高发区；黄平西部、凯里、榕江西部、锦屏北部和从江为洪涝常发区；施秉、剑河、黎平、天柱和岑巩为洪涝少发区；镇远、三穗和台江为洪涝偶发区。
Abstract
Based on the daily precipitation data of 16 stations in Qiandongnan Prefecture from 1961 to 2010, the flood occurrence, change and distribution law in Qiandongnan Prefecture were analyzed by starting from the flood index system of 1, 2 and 3 d.results showed that flood ap-peared in 46 years among the the 50 years, with 7.66 station times each year on average.Multiple floods were concentrated in the years after 1990s.Flood started from April and ended on October, mainly occurred from May to September.In Qiandongnan Prefecture, flood gradually weakened from southwest to northeast.Majiang, Danzhai and west Leishan were the high incidence areas of flood.West Huangping, Kaili, west Rongjiang, north Jinping and Congjiang were the often incidence areas.Shibing, Jianhe, Liping, Tianzhu and Cengong were few incidence are-as.Zhenyuan, Sansui and Taijiang were accidental incidence areas.
国家科技期刊平台
NSTL
维普
万方数据