污染指标

indrub

indwat

indso2

C

16708.73 (38.18)

4,637,302 (11.86)

19,800,000 (7.28)

GDPper

−0.1488638 (−5.29)

−6.386498 (−0.16)

430.4806 (2.46)

GDPp²

3.86e−06 (9.77)

0.0030823 (2.59)

−0.100551 (−4.09)

GDPp³

0

−3.86e−08 (−3.53)

0

adj-Rsquare

0.9814

0.9853

0.8936

obs

14

14

14

形状

U型

倒N型

倒U型(EKC关系)