江西农业学报Issue(12)：89-93,98,6.
采用模糊分类法构建鄱阳湖流域旱涝文献代用资料序列
Constructing Literature Proxy Data Sequences of Drought and Flood in Poyang Lake Basin by Using Fuzzy Classification
摘要
Abstract
This research collected and sorted the meteorological disasters records within 49 kinds of local chronicles of Jiangxi province , and formulated the standards for judging the grade of drought and flood disasters .By using fuzzy classification method to judge the grade of drought and flood reflected by each record , we built the proxy data sequences of drought and flood disasters in the Poyang Lake basin from the year 48 to 1950.Drought and flood disasters were classified into severe , moderate and light levels , and the sequences of drought and flood grade were studied .The results showed that:(1) flood occurred more frequently than drought , and flood happened once every three years while drought happened once every four years ;( 2) the moderate drought and flood oc-curred most frequently , followed by severe level , and light level was the last .The sequences of drought and flood showed the charac-teristic of skew distribution;(3) flood occurred most frequently in the lower reaches of the Gan River at different times , while drought occurred most frequently in the region around the Poyang Lake .关键词
模糊分类法/鄱阳湖流域/旱涝/文献/代用资料Key words
Fuzzy classification/Poyang Lake basin/Drought and flood/Literature/Proxy data分类
农业科技引用本文复制引用
王怀清,殷剑敏,孔萍,姜智怀..采用模糊分类法构建鄱阳湖流域旱涝文献代用资料序列[J].江西农业学报,2015,(12):89-93,98,6.基金项目
中国气象局气候变化专项“鄱阳湖流域千年旱涝灾害资料序列构建与分析”（ CCSF201223）。 （）
