[Retracted] A Dynamic Econometric Analysis of Urbanization and Ecological Environment in Silk Road Economic Belt

Table 2

Early warning limit division.

Warning limit (C)	0 < 0.4	0.4 ≤ 0.5	0.5 ≤ 0.7	0.7 ≤ 0.8	0.8 ≤ 0.9	0.9 ≤ 1
Alert	Mega	Heavy	Medium	Light	Micro	No
Signal light	Red	Yellow	Light green	Green	Light blue	Blue
Coordination status	Severe dissonance	Moderate dissonance	Barely coordinated	Moderately coordinated	Good coordination	Quality coordination