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基于标准化流量指数(SDI)的石羊河流域水文干旱特征
李玲萍1,2(), 卢泰山3(), 刘明春2, 胡丽莉1, 王素萍1
Characteristics of hydrological drought based on standardized flow index in Shiyang River Basin of China
Lingping Li1,2(), Taishan Lu3(), Mingchun Liu2, Lili Hu1, Suping Wang1

图3. 石羊河流域水文干旱历时、烈度和强度演变

Fig.3. Evolution of hydrological drought duration, severity and intensity of Shiyang River Basin