Variations of the Reference Evapotranspiration and Aridity Index Over Northeast China: Changing Properties and Possible Causes

<div>M-K analyses of ET<sub>0</sub> (a) and AI (b) over Northeast China. Solid line, C<sub>1</sub>; gray line, C<sub>2</sub>; dashed line, significance level at 0.05; the cross point of C<sub>1</sub> and C<sub>2</sub> was the start point in this series.</div>

Advances in Meteorology

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Figure 6

Figure 6: Variations of the Reference Evapotranspiration and Aridity Index Over Northeast China: Changing Properties and Possible Causes 