Table 6 Prediction accuracy test of the synergy degree between urbanization and the ecological environment in the Chengdu–Chongqing urban agglomeration.

From: Research on the synergistic effects of urbanization and ecological environment in the Chengdu–Chongqing urban agglomeration based on the Haken model

City

Chengdu

Zigong

Luzhou

Deyang

Mianyang

Suining

MAPE (%)

2.03

4.65

3.78

3.14

4.57

6.99

City

Neijiang

Leshan

Nanchong

Meishan

Yibin

Guang’an

MAPE (%)

5.08

1.49

7.20

4.81

4.55

6.84

City

Dazhou

Ya’an

Ziyang

Chongqing

Wanzhou

Qianjiang

MAPE (%)

6.93

3.39

8.00

3.02

5.54

10.30

City

Fuling

Changshou

Jiangjin

Hechuan

Yongchuan

Nanchuan

MAPE (%)

4.69

5.64

3.93

1.63

2.51

3.80

City

Qijiang

Dazu

Bishan

Tongliang

Tongnan

Rongchang

MAPE (%)

7.03

8.37

5.31

6.92

8.98

5.95

City

Kaizhou

Liangping

Fengdu

Dianjiang

Zhongxian

Yunyang

MAPE (%)

9.78

4.86

10.67

6.52

8.76

7.14

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