Coordinated Development of Population, Resources, Environment, Economy, and Society under Engineering Management Combined with Bilevel Optimization Model

Table 2

Determination criteria and classification system for the degree of coordinated development of regional population, economy, and resources and environment.

Classification	Degree of coordinated development	Level 1 criteria	Level 2 criteria
Interval of coordinated development	0.9∼1	Superior coordination	① When m = min{/(x),,h(z)}, it is a lagged type, similar to m = /(x), which is population lagged type.; ② When/(x) =  = h(z), it is a synchronous type for population, economy, and environment
	0.80∼0.89	Good coordination
	0.70∼0.79	Moderate coordination
Interval of transitional reconciliation	0.60∼0.69	Basically coordinated
	0.50∼0.59	Barely coordinated
	0.40∼0.49	On the verge of dysfunction and decline
Interval of dysfunction and decline	0.30∼0.39	Mild dysfunction and decline
	0.20〜0.29	Moderate dysfunction and decline
	0.10∼0.19	Severe dysregulation and decline
	0∼0.09	Extremely severe dysfunction and decline