Zone 1

Model

R2

t-value

p-value

AIC

1)

0.362

5.326

2.39 × 10−6

−438

2)

0.341

5.090

5.45 × 10−6

−436

3)

0.320

4.845

1.27 × 10−5

−435

Zone 2

4)

0.487

6.893

8.83 × 10−9

−334

5)

0.443

6.299

7.49 × 10−8

−330

6)

0.438

6.238

9.32 × 10−8

−330

Zone 3

7)

0.635

9.323

1.61 × 10−12

−304

8)

0.624

9.115

3.30 × 10−12

−303

9)

0.573

8.186

8.58 × 10−11

−296