1735—1911年汉江流域季节旱涝等级序列的重建与特征分析

丁玲玲, 郑景云

Reconstruction and characteristics analysis of series of seasonal drought/flood grades over Hanjiang River Basin during 1735-1911

DING Lingling, ZHENG Jingyun

图2 1730s—1900s四季汉江流域7府（州）旱涝等级距平百分率

Fig. 2 Percentage of seasonal drought/flood grade anomaly for 7 prefectures in Han River Basin from 1730s to 1900s