Coupling Coordinated Evolution and Forecast of Tourism-Urbanization-Ecological Environment: The Case Study of Chongqing, China

Table 1

Development trends of some indicators of tourism, urbanization, and ecological environment.

Systems	Indicator	2000	2010	2017
Tourism system	Number of domestic tourists (10,000 people)	3069.67	16036.57	53871.86
	Number of inbound tourists (10,000 people)	26.61	137.02	358.35
	Number of A-level scenic spots (unit)	32	95	224
Urbanization system	Urban population (10,000 people)	1013.88	1529.55	1970.68
	Urbanization rate (%)	35.6	53	64.1
	Built-up area (km^2)	439.22	1136.53	1573.02
Ecological environment system	Total industrial wastewater discharge (10,000 t)	84344	45180	19303
	Total industrial exhaust emissions (10,000 t)	1907.9	10943.13	9596.76
	Investment in pollution treatment projects completed this year (10,000 yuan)	33524	77502	60702