CAJ | 학술논문

选取史料中1480-1940年间共460年的旱涝灾害记录,采用湿润指数法建立湿润指数(I)序列,并用最远距离法作聚类分析,讨论了广东在15-19世纪末期间总体和不同冷暖时期的旱涝区域分布状况.结果表明:1)113°E经线似乎可以看作是广东一条重要的气候特征线,该经线以东、以西的旱涝分区界线大致分别沿经向、纬向分布;2)粤西、粤北是广东旱涝区域分异变化较大的地区,粤东在不同时期也有所变化,珠三角地区则是较为稳定的涝灾多发区;3)不同冷暖时期的旱涝分区既有大致相同的特征,又有一定的差异.文章认为以上结果可能是由于广东主要受东亚夏季风影响,一定程度上也受印度夏季风影响及东亚气候系统发生改变等共同作用的结果.
선취사료중1480-1940년간공460년적한로재해기록,채용습윤지수법건립습윤지수(I)서렬,병용최원거리법작취류분석,토론료엄동재15-19세기말기간총체화불동랭난시기적한로구역분포상황.결과표명:1)113°E경선사호가이간작시엄동일조중요적기후특정선,해경선이동、이서적한로분구계선대치분별연경향、위향분포;2)월서、월북시엄동한로구역분이변화교대적지구,월동재불동시기야유소변화,주삼각지구칙시교위은정적로재다발구;3)불동랭난시기적한로분구기유대치상동적특정,우유일정적차이.문장인위이상결과가능시유우엄동주요수동아하계풍영향,일정정도상야수인도하계풍영향급동아기후계통발생개변등공동작용적결과.
Based on historical records of drought and waterlog disasters during the 15th～19th centuries in Guangdong Province,features of drought and waterlog distribution in different periods were discussed.From the analysis of the moist index(MI),we draw some conclusions as follows:1)the 113°E longitude can be regarded as an important boundary inside Guangdong Province in terms of climatic characteristics,because in the east and west of the boundary distinct differences in the distribution of regional drought and waterlog can be identified;2)the regional differentiation of droughts and waterlogs in the west and north of Guangdong changed relatively greatly in history,while in the east the change of which was not so visible,and the Pearl River Delta region kept stable as a region frequently afflicted by drought and waterlog disasters;3)in different cold and warm periods,the overall differentiations of drought and waterlog disasters shared similar pattern but still there were differences.