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Table 3

Correlation test between groundwater depth and driving factors

lag0lag1lag2lag3lag4lag5lag6
GE-GD −0.06 0.21** 0.12 0.05 0.13 – – 
SI-GD −0.13* −0.07 −0.05 −0.09 0.00 0.00 0.07 
R-GD −0.15** −0.02 0.10 0.11 0.04 −0.03 0.00 
lag0lag1lag2lag3lag4lag5lag6
GE-GD −0.06 0.21** 0.12 0.05 0.13 – – 
SI-GD −0.13* −0.07 −0.05 −0.09 0.00 0.00 0.07 
R-GD −0.15** −0.02 0.10 0.11 0.04 −0.03 0.00 

Note: GE is groundwater exploitation, SI is surface water irrigation, R is runoff, GD is groundwater depth, lag0–lag6 is driving factor lagging 0–6 months, respectively. **p < 0.05, *p < 0.1.

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