1961—2018年四川盆地极端伏旱日数准2 a周期变化特征及其可能成因

周斌,王春学,张顺谦

Quasi-biennial Period Characteristics of Extreme Summer Drought Days and Its Possible Causes in Sichuan Basin During 1961-2018

Bin ZHOU,Chunxue WANG,Shunqian ZHANG

图2 1961—2018年四川盆地极端伏旱日数的线性趋势空间分布[单位:d·(10 a)-1] (浅、深色区分别通过α=0.1、0.05的显著性检验)

Fig.2 Spatial distribution of linear trends of extreme summer drought days in Sichuan Basin during 1961-2018 (Unit: d·(10 a)-1) (The light and dark areas passed significance test of 0.1 and 0.05 levels, respectively)