Analysis of Ecological Environment Evaluation and Coupled and Coordinated Development of Smart Cities Based on Multisource Data

Table 1

Construction of ecological environment evaluation index system of smart city.

System layer	Index layer	Unit	Index code
Environment evaluation index system of smart city	Decontamination rate of urban refuse	%	X1
	Forest coverage rate	%	X2
	Greenland coverage rate	%	X1
	Water supply popularizing rate	%	X4
	Urban sewage treatment rate	%	X5
	Industrial waste gas discharge	100 million cu.m	X6
	Utilization rate of industrial solid waste	%	X7
	Industrial wastewater discharge	100 million tons	X8
	Industrial solid waste discharge	10000 tons	X9