Table 4.

Classification categories for the coupling coordination of urbanization and the ecological environment.

Composite category	Coordination level	Subcategory	Systematic exponential comparison	Subcategory	Percent (%)
Coordinated development	0.8 < D ≤ 1	High coordination	E-U > 0.1	Sluggish urbanization	0.10
			|E-U| ≤ 0.1	Systematic balanced development	0.21
			E-U < −0.1	Ecological environment lag	0.50
Transformation development	0.6 < D ≤ 0.8	Moderate coordination	E-U > 0.1	Sluggish urbanization	6.31
			|E-U| ≤ 0.1	Systematic balanced development	10.32
			E-U < −0.1	Ecological environment lag	2.07
	0.4 < D ≤ 0.6	Primary coordination	E-U > 0.1	Sluggish urbanization	20.67
			|E-U| ≤ 0.1	Systematic balanced development	29.32
			E-U < −0.1	Ecological environment lag	4.75
Uncoordinated development	0.2 < D ≤ 0.4	Moderate imbalance	E-U > 0.1	Sluggish urbanization	9.03
			|E-U| ≤ 0.1	Systematic balanced development	11.60
			E-U < −0.1	Ecological environment lag	2.68
	0 < D ≤ 0.2	Serious imbalance	E-U > 0.1	Sluggish urbanization	1.17
			|E-U| ≤ 0.1	Systematic balanced development	0.75
			E-U < −0.1	Ecological environment lag	0.53